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The nonlinear properties of the dust-ion-acoustic waves (DIAWs) are investigated by using the hydrodynamic equations together with the Poisson equation in a collisionless pair ion dense plasma containing positive and negative ions, fraction of stationary charged (positive or negative) dust grains and degenerate electro... | Quantum plasmas are an important topic in astrophysics and high pressure laboratory physics for more than 50 years. In addition, many condensed matter systems, including the electron gas in metals, metallic nanoparticles, or electron-hole systems in semiconductors and heterostructures, exhibit—to some extent—plasmalike... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 10,900 |
Čerenkov resonances and the Casimir geometry | Abstract The power spectrum of Cerenkov radiation off a charged particle is calculated in the Casimir geometry defined by two perfectly conducting neutral parallel plates with an isotrpic permeable medium trapped in between. An explicit analytic expression is obtained for the spectrum exhibiting resonances as a functio... | The main objective of this article is to study dynamic of the ::: three-dimensional Boussinesq equations with the periodic boundary ::: condition.We prove that when the Rayleigh number $R$ crosses the ::: first critical Rayleigh number $R_c$, the Rayleigh-Benard problem ::: bifurcates from the basic state to an global ... | eng_Latn | 10,901 |
Chaotic and turbulent temperature fluctuations in atmospheric free convection | It is shown, using results of direct numerical simulations, laboratory experiments, measurements in the atmospheric boundary layer and satellite infrared radiances data, that the temperature fluctuations in atmospheric free convection can be well described by the distributed chaos approach based on the Bolgiano-Obukhov... | We perform a Variational Quantum Monte Carlo simulation of an interacting ::: Fermi gas confined in a three dimensional harmonic potential. This gas is considered as the precursor system from which a molecular bosonic gas is formed. Based in the results of two-body calculations for trapped atoms, we propose a family of... | eng_Latn | 10,902 |
Symmetry of Intramolecular Quantum Dynamics | The main goal of this book is to give a systematic description of intramolecular quantum dynamics on the basis of only the symmetry principles. In this respect, the book has no analogs in the world literature. The obtained models lead to a simple, purely algebraic, scheme of calculation and are rigorous in the sense th... | Abstract A series of quantization identities are established for static vortex solutions governed by the Born–Infeld type actions. These identities are of a universal nature which are indifferent to the details of the models and provide refined descriptions of divergent energetic quantities. | yue_Hant | 10,903 |
Quantification of propagating and standing surface acoustic waves by stroboscopic X-ray photoemission electron microscopy | The quantification of surface acoustic waves (SAWs) in LiNbO3 piezoelectric crystals by stroboscopic X-ray photoemission electron microscopy (XPEEM), with a temporal smearing below 80 ps and a spatial resolution below 100 nm, is reported. The contrast mechanism is the varying piezoelectric surface potential associated ... | We study the problem of correspondence between classical and quantum statistical models. We show that (contrary to a rather common opinion) it is possible to construct a natural pre-quantum classical statistical model. The crucial point is that such a pre-quantum classical statistical model is not the conventional clas... | eng_Latn | 10,904 |
Deterministic mode alternation, giant pulses and chaos in a bidirectional CO2 ring laser | Abstract A CO 2 ring laser with a single longitudinal mode propagating in each direction shows a variety of stable, periodic, and aperiodic phenomena depending on gas pressure, cavity detuning and relative excitation. Three distinct low frequency time scales for dynamical behavior are observed and are explained by nume... | I discuss a recently unveiled feature in the dynamics of two dimensional coarsening systems on the lattice with Ising symmetry: they first approach a critical percolating state via the growth of a new length scale, and only later enter the usual dynamic scaling regime. The time needed to reach the critical percolating ... | eng_Latn | 10,905 |
Experimental Demonstration of a Multiphysics Cloak: Manipulating Heat Flux and Electric Current Simultaneously | Invisible cloaks have been widely explored in many different physical systems but usually for a single phenomenon for one device. In this Letter we make an experimental attempt to show a multidisciplinary framework that has the capability to simultaneously respond to two different physical excitations according to pred... | In this paper we study a degenerate evolution system ::: $\mathbf H_t +\nabla \times [|\nabla \times \mathbf H|^{p-2}\nabla \times \mathbf H]=\mathbf F$ in a bounded domain as well as its limit as $p\to \infty$ subject ::: to appropriate initial and boundary conditions. This system governs the evolution ::: of the magn... | eng_Latn | 10,906 |
REMARKS ON SOME QUANTUM EFFECTS IN A GLOBAL MONOPOLE SPACE–TIME | We study the behaviour of a nonrelativistic quantum particle interacting with the Kratzer molecular potential in the space–time of a global monopole. We find the energy spectrum and derive the scattering amplitude of massive particles propagating in these fields and show how they differ from their free-space values. | Abstract The aim of the present paper is to give the main characteristics of the finite-source G / M /r queue in equilibrium. Here unit i stays in the source for a random time having general distribution function F i ( x ) with density f i ( x ). The service times of all units are assumed to be identically and exponent... | yue_Hant | 10,907 |
Errors in the total Bouguer reduction | This short note discusses various errors in the Bouguer reduction that have been discussed recently in the literature. It also discusses two other errors arising out of the “indirect effect” and the uncertainty in the value of the universal constant of gravitation, G, that previously have not been discussed extensively... | The main objective of this article is to study dynamic of the ::: three-dimensional Boussinesq equations with the periodic boundary ::: condition.We prove that when the Rayleigh number $R$ crosses the ::: first critical Rayleigh number $R_c$, the Rayleigh-Benard problem ::: bifurcates from the basic state to an global ... | eng_Latn | 10,908 |
A FDM-based Simultaneous Wireless Power and Data Transfer (SWPDT) System Functioning with High-rate Full-duplex Communication | This paper proposes a novel scheme integrating full-duplex data communication into a wireless power transfer system. The power and data are transmitted on the same inductive link comprised of two coreless coils with taps. Frequency division multiplexing (FDM) technique is applied. The power and data are transmitted by ... | We present a theoretical framework for equilibrium and nonequilibrium dynamical simulation of quantum states with spin-density-wave (SDW) order. Within a semiclassical adiabatic approximation that retains electron degrees of freedom, we demonstrate that the SDW order parameter obeys a generalized Landau-Lifshitz equati... | eng_Latn | 10,909 |
FUNDAMENTAL GROUP OF THE DYNAMICAL GRAPH | In this paper we will discuss the dynamical graph and its fundamental group. Also we will study the folding of the dynamical graph and the change of the fundamental group under the folding. The variation of the fundamental group under the variation of time will be discussed. We will study the fundamental group of the s... | We show how to extend the formalism of infinitesimal differential diffusion quantum Monte Carlo to the case of higher derivatives of the ground‐state energy of a molecule with respect to the molecular geometry. We use LiH as an example, but the technique can be extended to more complicated, nonliner molecules as well. ... | yue_Hant | 10,910 |
Smoluchowski problem for metals with mirror-diffusive boundary conditions | We solve the Smoluchowski problem for the distribution of electron-gas temperatures near the metal surface in the presence of a temperature gradient normal to the surface. We assume mirror-diffusive scattering of electrons by the metal boundary. We develop a special solution method using the Neumann series. | Dynamical properties of hole carriers introduced in the strongly correlated electron systems, i.e. the Mott-Hubbard insulators, are theoretically studied by using both the moment method and the operator transformation method. Particular emphasis is put on effects of the quantum spin fluctuation on the dynamics. | eng_Latn | 10,911 |
Multiple time scale stochastic formulation for collision problems with more than one degree of freedom | Individual molecular collisions have been described by nonequilibrium statistical mechanics in previous work. The present paper deals mainly with refinements and extensions of the theory for systems with more than one internal degree of freedom. For example, it is shown how quantum mechanics for one internal mode can b... | We investigate the OLS-based estimator s2 of the disturbance variance in the standard linear regression model with cross section data when the disturbances are homoskedastic, but spatially correlated. For the most popular model of spatially autoregressive disturbances, we show that s2 can be severely biased in finite s... | eng_Latn | 10,912 |
On the existence of linear trend-free block designs | We present a class of counerexamples for a conjecture on the existence or linear trend free block designs we will also prove a considerably weakened version of this conjecture which will determine all combinations of designs parmetres for which the class of linear trend free block designs is non empty. | We find a general formula for the distribution of time averaged observables for weakly non-ergodic systems. Such type of ergodicity breaking is known to describe certain systems which exhibit anomalous fluctuations, e.g. blinking quantum dots and the sub-diffusive continuous time random walk model. When the fluctuation... | eng_Latn | 10,913 |
The asymmetric resonant exchange qubit under the influence of electrical noise | We investigate the influence of electrical charge noise on a resonant exchange (RX) qubit in a triple quantum dot. This RX qubit is a variation of the exchange-only spin qubit which responds to a narrow-band resonant frequency. Our noise model includes uncorrelated charge noise in each quantum dot giving rise to two in... | Problems associated with the modelling and calculation of quasi-steady-state postfault regimes are considered for abrupt power unbalances. A program permitting calculation of quasi-steady-state postfault regimes with allowance for frequency dynamics and the investigation of their stability is described. Results of calc... | eng_Latn | 10,914 |
Sub-Doppler infrared spectroscopy and formation dynamics of triacetylene in a slit supersonic expansion | Infrared spectroscopy and formation dynamics of triacetylene are investigated in a slit jet supersonic discharge and probed with sub-Doppler resolution (≈60 MHz) on the fundamental antisymmetric CH stretch mode (ν5). The triacetylene is generated in the throat of the discharge by sequential attack of ethynyl radical wi... | In this paper the physical meaning of a nonlinear partial differential equation (nPDE) of the fourth order relating to wave theory is deduced to the first time. The equation under consideration belongs to a class of less studied nPDEs and an explicit physical meaning is not known until now. This paper however bridges t... | eng_Latn | 10,915 |
A high-temperature thermodynamic investigation of the nb-mo system | The thermodynamic properties of solid Nb(Cb)-Mo alloys have been determined between 1050 and 1300 K using solid state galvanic cells with a thoria-based electrolyte. The activities of niobium and molybdenum exhibit negative deviations from Raoult’s law. The excess entropies of mixing are very small and negative, and th... | In this paper we study a degenerate evolution system ::: $\mathbf H_t +\nabla \times [|\nabla \times \mathbf H|^{p-2}\nabla \times \mathbf H]=\mathbf F$ in a bounded domain as well as its limit as $p\to \infty$ subject ::: to appropriate initial and boundary conditions. This system governs the evolution ::: of the magn... | eng_Latn | 10,916 |
N-soliton solutions in the higher-order nonlinear Schroedinger equation | We investigated the possible solutions of the higher order nonlinear Schrodinger (HNLS) equation describing femtosecond optical pulses in an optical fiber system. By using the Hirota direct method, we derived a fundamental solitary wave solution for arbitrary parameters and a N-soliton solution under some conditions. T... | We discuss the relation between the observed CC, ES, and NC fluxes with the flavor fractional content of the solar neutrino flux seen by SNO. By using existing estimates of the cross sections for the charged and neutral current reactions which take into account the detector resolution, we show how the forthcoming SNO r... | eng_Latn | 10,917 |
Strongly nonlinear stationary waves | In this chapter we shall start to investigate wave-plasma interaction processes where the relative density changes produced by the ponderomotive force of the high-frequency field cannot longer be considered as small. Thus, attempts to describe such processes have to start from the fully nonlinear system (3.14)–(3.16). ... | In this paper, we study a system governed by impulsive semilinear nonautonomous differential equations. We present the β –Ulam stability, β –Hyers–Ulam stability and β –Hyers–Ulam–Rassias stability for the said system on a compact interval and then extended it to an unbounded interval. We use Gronwall type inequality a... | eng_Latn | 10,918 |
Matrix solutions of a noncommutative KP equation and a noncommutative mKP equation | Matrix solutions of a noncommutative KP and a noncommutative mKP equation which can be expressed as quasideterminants are discussed. In particular, we investigate interaction properties of two-soliton solutions. | We introduce a dynamical model of coupled directed percolation systems with two particle species. The two species $A$ and $B$ are coupled asymmetrically in that $A$ particles branch $B$ particles whereas $B$ particles prey on $A$ particles. This model may describe epidemic spreading controlled by reactive immunization ... | eng_Latn | 10,919 |
Distribution Function of Electron Velocity Perpendicular to the Driving Force in a Uniform Nonequilibrium Steady State | A macroscopically uniform model of a two-dimensional electron system is proposed to study nonequilibrium properties of electrical conduction. By molecular dynamics simulation, the steady state distribution function $P_y$ of electron velocity in a direction perpendicular to an external driving force is calculated. An ex... | Many recent works are devoted to the study of high frequency oscillatory nonlinear waves, and to nonlinear geometric optics. Typical questions are the existence, the propagation, the interaction and the reflection of waves of the form ::: ::: $$ {u^\varepsilon }\left( {t,x} \right) \sim \underline u \left( {t,x} \right... | eng_Latn | 10,920 |
Spontaneously appearing diskrete moving kinks in nonlinear acoustic chain with realistic potentials | Molecular dynamic simulations are performed to investigate a long-time evolution of different type initial signals in nonlinear acoustic chains with realistic Exp-6 potential and with power ones. Finite number of long-lifetime kink-shaped excitations is observed in the system in thermodynamic equilibrium. Dynamical equ... | We consider a stable driven degenerate stochastic differential equation, whose coefficients satisfy a kind of weak H{\"o}rmander condition. Under mild smoothness assumptions we prove the uniqueness of the martingale problem for the associated generator under some dimension constraints. Also, when the driving noise is s... | eng_Latn | 10,921 |
Nonlinear Evolution Equations for Symmetric Beams | The stability of solutions with a prevailing mode in different nonlinear models for beams with intermediate piers is studied. Both linear stability (for bi-modal solutions) and a suitable notion of nonlinear stability are investigated, introducing a proper concept of energy threshold of instability and then determining... | Measurements performed at the Tevatron of both the like-sign dimuon charge asymmetry inBd;s-meson samples and the mixing-induced CP asymmetry inBs! J= depart from their standard model (SM) predictions. This could be an indication for new CP phases in B = 2 transitions, preferentially in Bs{ Bs mixing. The experimental ... | yue_Hant | 10,922 |
Collapse of the wave packet without mixture | An explicit model of the quantum measurement process with determinstic dissipative dynamics is presented. The usual results of quantum mechanics are recovered, in complete compatibility with the realistic interpretation. The model exhibits the famous reduction of the wave packet and the occurrence of probability is exp... | Stress vs. strain fluctuations in athermal amorphous solids are an example of `crackling noise' of the type studied extensively in the context of elastic membranes moving through random potentials. Contrary to the latter, we do not have a stochastic equation whose statistics agree with the measured ones. On the other h... | eng_Latn | 10,923 |
Conductivity in a disordered one-dimensional system of interacting fermions | Dynamical conductivity in a disordered one-dimensional model of interacting fermions is studied numerically at high temperatures and in the weak-interaction regime in order to find a signature of many-body localization and vanishing d.c. transport coefficients. On the contrary, we find in the regime of moderately stron... | Abstract In this paper, we discuss the existence of the fourth-order boundary value problem { u ( 4 ) = f ( t , u , u ″ ) , 0 t 1 , u ( 0 ) = u ( 1 ) = u ″ ( 0 ) = u ″ ( 1 ) = 0 , where f : [ 0 , 1 ] × R × R → R is continuous, and partly solve the Del Pino and Manasevich's conjecture on the nonresonance condition invol... | eng_Latn | 10,924 |
Kink-Antikink Collisions in the phi^4 Equation: The n-Bounce Resonance and the Separatrix Map | We provide a detailed mathematical explanation of a phenomenon known as the two-bounce resonance observed in collisions between kink and antikink traveling waves of the $\phi^4$ equations of mathematical physics. This behavior was discovered numerically in the 1980s by Campbell and his collaborators and subsequently di... | O. Introduction This lecture will unfortunately not be a systematic review of the subject of rigorous results in non-equilibrium statistical mechanics. A preliminary attempt to outline such a review led me quickly to the conclusion that the field is too diverse to be summarized in a single lecture. I have therefore dec... | eng_Latn | 10,925 |
Temperature-Dependent Physicochemical Properties and Solvation Thermodynamics of Nitrotoluenes from Solvation Free Energies | Expanded ensemble molecular dynamics simulations are used to calculate the free energies of hydration and self-solvation of low polarity nitrotoluenes over the temperature range of 273 K to 330 K. From this information the liquid, subcooled, and solid-phase vapor pressures, solubilities, Henry’s law constants, hydratio... | In this paper the physical meaning of a nonlinear partial differential equation (nPDE) of the fourth order relating to wave theory is deduced to the first time. The equation under consideration belongs to a class of less studied nPDEs and an explicit physical meaning is not known until now. This paper however bridges t... | eng_Latn | 10,926 |
The Coulomb bridge function and the Pair-distribution functions of the 2-dimensional electron liquid in the quantum regime | The electron-electron pair distribution functions (PDF) of the 2-D electron fluid (2DEF) in the quantum regime (at T=0) are calculated using a classical-map-hyper-netted-chain (CHNC) scheme and compared with currently available Quantum Monte-Carlo (QMC) simulations in the coupling range r_s=1 to 50. We iteratively extr... | Abstract In this paper, a simplified congestion control model is considered to study the quasiperiodic motion induced by heterogenous time delays. Analysis for the stability of the equilibrium shows that the Hopf bifurcation curves with diverse frequencies may intersect at the so-called non-resonant double Hopf bifurca... | eng_Latn | 10,927 |
Absolute instability in a traveling wave tube model | A model is constructed to evaluate absolute instability which may lead to bandedge oscillations in a traveling wave tube. Under the assumptions (a) that all modes have forward group velocities, and (b) that the slow wave structure has a parabolic dispersion relation in the ω-k plane, the threshold coupling constant (Pi... | AbstractIn this note we have proved the lifting properties on fibre bundle W under skew product flow π and established that if bounded solutions are positively uniformly stable then a π–invariant subset of W is minimal. | eng_Latn | 10,928 |
Low Noise Synthesized Microwave Local Oscillator for High Capacity Digital Radio Systems using a Dielectric Resonator and a SAW Reference | A novel solution for a synthesized microwave local oscillator suitable for high capacity digital radio systems using multilevel QAM is described. The synthesizer approach covering all radio channels of a given RF band is based on a mechanically and electronically tunable dielectric resonator oscillator phase locked wit... | We present a theoretical framework for equilibrium and nonequilibrium dynamical simulation of quantum states with spin-density-wave (SDW) order. Within a semiclassical adiabatic approximation that retains electron degrees of freedom, we demonstrate that the SDW order parameter obeys a generalized Landau-Lifshitz equati... | eng_Latn | 10,929 |
The application of Bessel discrete variable representation to atomic hydrogen in intense laser fields | The Bessel discrete variable representation (DVR) method is tested to describe the interaction of atomic hydrogen with intense laser fields by numerically solving the time-dependent Schrodinger equation. Using the Bessel functions of the first kind, the singular terms, r-2 or r-1 at the origin, in the kinetic energy op... | In this paper we study a degenerate evolution system ::: $\mathbf H_t +\nabla \times [|\nabla \times \mathbf H|^{p-2}\nabla \times \mathbf H]=\mathbf F$ in a bounded domain as well as its limit as $p\to \infty$ subject ::: to appropriate initial and boundary conditions. This system governs the evolution ::: of the magn... | eng_Latn | 10,930 |
Primal-Dual Logarithmic Barrier and Augmented Lagrangian Function to the Loss Minimization in Power Systems | This article presents a new approach to minimize the losses in electrical power systems. This approach considers the application of the primal-dual logarithmic barrier method to voltage magnitude and tap-changing transformer variables, and the other inequality constraints are treated by augmented Lagrangian method. The... | Abstract In this paper, we investigate the time-dependent Ginzburg–Landau (TDGL) equations coming from the superfluid atomic Fermi gases near the Feshbach resonance from the fermion–boson model. By the method of a priori estimates, we get the existence of global attractors in the case of BCS–BEC crossover. | eng_Latn | 10,931 |
Soliton solutions for some x-dependent nonlinear evolution equations | Under investigation in this paper are two x-dependent nonlinear evolution equations: the generalized x-dependent nonlinear Schrodinger (NLS) equation and the modified Korteweg–de Vries (KdV) equation. With the help of Hirota method and symbolic computation, the one- and two-soliton solutions have been obtained for the ... | In this paper, we investigate the applicability of the comonotonicity approach in the context of various benchmark models for equities and commodities. Instead of classical Levy models as in Albrecher et al. we focus on the Heston stochastic volatility model, the constant elasticity of variance (CEV) model and Schwartz... | eng_Latn | 10,932 |
Observation of Algebraic Time Order for Two-Dimensional Dipolar Excitons | Emergence of algebraic quasi-long-range order is a key feature of superfluid phase transitions at two dimensions. For this reduced dimensionality interactions prevent Bose-Einstein condensation with true long range order, at any finite temperature. Here, we report the occurence of algebraic order in a strongly interact... | This paper considers the search for locally and maximin optimal designs for multi-factor nonlinear models from optimal designs for sub-models of a lower dimension. In particular, sufficient conditions are given so that maximin D-optimal designs for additive multi-factor nonlinear models can be built from maximin D-opti... | eng_Latn | 10,933 |
On sandwich theorems for multivalent functions involving a generalized differential operator | The purpose of this paper is to derive some subordination and superordination results for multivalent functions involving certain differential operator. | Abstract In this paper, we investigate the time-dependent Ginzburg–Landau (TDGL) equations coming from the superfluid atomic Fermi gases near the Feshbach resonance from the fermion–boson model. By the method of a priori estimates, we get the existence of global attractors in the case of BCS–BEC crossover. | eng_Latn | 10,934 |
Existence of pure strategy Nash equilibrium in Bertrand-Edgeworth oligopolies | Price duopoly and capacity constraints | Nonequilibrium evolution of strong-field anisotropic ionized electrons towards a delayed plasma-state | eng_Latn | 10,935 |
How to derive Schrödinger equation? | How can one derive Schrödinger equation? | How can one derive Schrödinger equation? | eng_Latn | 10,936 |
Improved Soliton Amplitude Estimation via the Continuous Spectrum | In soliton communication systems, the continuous nonlinear spectrum, ideally zero, is conventionally ignored at the receiver. In this paper, we exploit correlation between the received continuous spectrum and perturbations of the discrete soliton eigenvalue. We propose four estimation schemes, classified into two categ... | The theoretical analysis of the precision and the calculation of finite element of two point difference scheme were presented. It shows that the scheme of Crank Nicolson has highest precision of solutions. However,there is still an effect of the oscillation on the precision of solution especially with longer time step. | eng_Latn | 10,937 |
Linear Recurring Sequences with Cycle Shift Operator over F_4 | This paper presents a new_type linear recurring sequence model over F_4 by adding cycle shift operator to linear recurring sequence over F_4. We first transform study of the model into research on linear recurring sequence over a module. With the aid of matrix representation, we turn it into further study on properties... | We present what is to our knowledge the most complete 1-D numerical analysis of the evolution and the propagation ::: dynamics of an ultrashort laser pulse in a Ti:Sapphire laser oscillator. This study confirms the dispersion ::: managed model of mode-locking, and emphasizes the role of the Kerr nonlinearity in generat... | eng_Latn | 10,938 |
Acoustic diagnostics of the explosive boiling up of a transparent liquid on an absorbing substrate induced by two nanosecond laser pulses | Photoacoustic pressure signals produced in an absorbing substrate under a layer of a transparent liquid irradiated by two successive nanosecond laser pulses are studied experimentally. The first pulse causes the heating and explosive boiling up of the liquid layer in contact with the irradiated surface, while the secon... | In this paper the physical meaning of a nonlinear partial differential equation (nPDE) of the fourth order relating to wave theory is deduced to the first time. The equation under consideration belongs to a class of less studied nPDEs and an explicit physical meaning is not known until now. This paper however bridges t... | eng_Latn | 10,939 |
Progress in the Asymmetric Additions of Alkylzinc Reagents to Imines | This review covers the recent advances on the asymmetric addition reactions of alkylzinc reagents with imines. 31 References were quoted. | Abstract In this paper we investigate two iterative methods for solving one problem of nonlinear optics. The main goal is not only to find a stationary solution but also to investigate its stability. It is shown that both methods have very different stability properties and the less stable algorithm is close to the app... | eng_Latn | 10,940 |
Analysis and scheme design of highway tunnel back lighting | The paper studies the implementation of back lighting through simulation according to the development of the back lighting technology and existing lighting conditions firstly.The design of the back lighting was completed in the real tunnel.The back lighting scheme for highway tunnel is proposed to solve the glare,strob... | Preface Bose-Einstein Condensation in Nonlinear System New Aspects of Relaxation Processes in Cryogenic Solids Induction Transformer Coupled Discharges: Investigation & Application P-Type InGaAs/AlGaAs Quantum Well Structures for Infrared Photodetection A D-3He Spherical Tokamak Reactor with the Plasma Current Ramp-Up ... | eng_Latn | 10,941 |
Anomalous scaling of fermions and order parameter fluctuations at quantum criticality | We analyze the quantum phase transition between a semimetal and a superfluid in a model of attractively interacting fermions with a linear dispersion. The quantum critical properties of this model cannot be treated by the Hertz-Millis approach since integrating out the fermions leads to a singular Landau-Ginzburg order... | Abstract The theory of normal grain growth that invokes random walk is further extended by allowing for biases in step direction. It is concluded that the predictions of this theory are in overall quantitative accord with experiment. However, the degree of agreement between theory and experiment as to the exact form of... | eng_Latn | 10,942 |
Bounds on codes derived by counting components in Varshamov graphs | We develop methods for estimating the number of components in the Varshamov graph of a linear code and derive some new lower bounds on minimum distance for nonbinary codes. | We perform a Variational Quantum Monte Carlo simulation of an interacting ::: Fermi gas confined in a three dimensional harmonic potential. This gas is considered as the precursor system from which a molecular bosonic gas is formed. Based in the results of two-body calculations for trapped atoms, we propose a family of... | eng_Latn | 10,943 |
Measurement of the Axial-Vector Coupling Constant $g_A$ in Neutron Beta Decay | The matrix element \Vud of the CKM matrix can be determined by two independent measurements in neutron decay: the neutron lifetime $\tau_n$ and the ratio of coupling constants $\lambda=g_A/g_V$, which is most precisely determined by measurements of the beta asymmetry angular correlation coefficient~$A$. We present rece... | We present an analytical derivation of the distributed model from the experimentally well confirmed lumped approach for the description of light propagation in mode-locked fiber lasers operating in the scalar regime where the dynamics is mainly governed by the propagation of a single field component. As a limiting case... | eng_Latn | 10,944 |
The order-disorder transition in colloidal suspensions under shear flow | We study the order?disorder transition in colloidal suspensions under shear flow by performing Brownian dynamics simulations. We characterize the transition in terms of a statistical property of the time-dependent maximum value of the structure factor. We find that its power spectrum exhibits power-law behaviour only i... | We investigated a Bose system confined in one-dimensional channel by using quantum Monte Carlo simulations. We observed temperature dependences of the superfluid density and two correlation functions along the tubal and the circumferential directions of the channel. As temperature is lowered, first the correlation deve... | eng_Latn | 10,945 |
Influences of Physical Parameters on Mixed Convection in a Horizontal Lid-Driven Cavity with an Undulating Base Surface | The problem of steady, laminar, and incompressible mixed convection flow in a horizontal lid-driven cavity is studied. In this investigation, two vertical walls of the cavity are perfectly insulated and the wavy bottom wall is considered at an identical temperature higher than the top lid. The enclosure is assumed to b... | Abstract Applying the self-consistent solitonic approach [1] to the extended Peierls-Hubbard model on odd rings, the interplay of el-el interactions U, V , various off-diagonal interactions, and external dimerization for the dimerization amplitude is studied by exact diagonalizations in the adiabatic limit. The applica... | eng_Latn | 10,946 |
Density-dependent synthetic magnetism for ultracold atoms in optical lattices | Raman-assisted hopping can allow for the creation of density-dependent synthetic magnetism for cold neutral gases in optical lattices. We show that the density-dependent fields lead to a non-trivial interplay between density modulations and chirality. This interplay results in a rich physics for atoms in two-leg ladder... | In order to design an effective control policy for the 10 m diameter primary mirror of the Grantecan Telescope, the coupling among the segments that compose the mirror through the structure that supports it must be treated. We present the mathematical demonstration of two important results in order to deal with the mir... | eng_Latn | 10,947 |
Wannier states and Bose-Hubbard parameters for 2D optical lattices | We consider the physical implementation of a 2D optical lattice with schemes involving three and four light fields. We illustrate the wide range of geometries available to the 3-beam lattice, and compare the general potential properties of the two lattice schemes. Numerically calculating the band structure we obtain th... | In the footsteps of our previous work \cite{RamatonBoschi} we generalize the Stefan-Boltzmann and Wien's displacement laws for the $ \textrm{AdS}_5 \times {\cal S}^5 $ spacetime, the background of the AdS/CFT correspondence foremost realization. Our results take into account the $ \textrm{AdS}_5 \times {\cal S}^5 $ ful... | eng_Latn | 10,948 |
A Solution of Equations Describing Explosive Instabilities | We have studied the basic equations, which describe three-wave interaction in a plasma, where collisional effects have to be taken into account. An analytical solution has been found and is compared with computer results. | We identify an eigenvalue associated with a dilute two-species Bose-Einstein condensate as the determiner of condensate stability. It plays the same role as the sign of scattering length in a one-species condensate. We predict that there is a range of interspecies interaction strength in which a sodium-rubidium mixture... | eng_Latn | 10,949 |
Charge density wave instabilities driven by multiple umklapp scattering | We show that the concept of umklapp-scattering driven instabilities in one-dimensional systems can be generalized to arbitrary multiple umklapp-scattering processes at commensurate fillings given that the system has sufficiently longer range interactions. To this end we study the fundamental model system, namely, inter... | This paper addresses the problem of channel and propagation delay estimation in asynchronous DS/CDMA systems. We consider the uplink connection in DS/CDMA with long spreading codes. The MIMO stochastic gradient algorithm proposed in [6] is estimating a linear combination of the channel impulse responses and the propaga... | eng_Latn | 10,950 |
Topological phases of lattice bosons with a dynamical gauge field | Optical lattices with a complex-valued tunnelling term have become a standard way of studying gauge-field physics with cold atoms. If the complex phase of the tunnelling is made density-dependent, such system features even a self-interacting or dynamical magnetic field. In this paper we study the scenario of a few boso... | Theoretical barograms have been calculated for acoustic-gravity waves ::: generated by underground explosions. Two formulations were used. 1) The ::: thermally modeled gravitating atmosphere is excited by a time varying deformation of the earth's surface. The final deformation is the static ::: surface displacement due... | eng_Latn | 10,951 |
Models of Disorder: The Theoretical Physics of Homogeneously Disordered Systems | Preface 1. Cellular disorder 2. Topographical disorder 3. Continuum disorder 4. The observation of disorder 5. Statistical mechanics of substitutional disorder 6. Thermodynamics of topological disorder 7. Macromolecular disorder 8. Excitations on a disordered linear chain 9. Excitations on a disordered lattice 10. Elec... | We find existence and uniqueness results about solutions of Robin's problem for the general anisotropic hyperbolic heat equation in the case of infinitely differentiable coefficients but irregular distributions data for the internal heatsources and boundary and initial conditions. | eng_Latn | 10,952 |
Charge Oscillations in a Double Quantum Dot in the Coulomb Blockade Regime | The two-electron dynamics in a symmetric double quantum dot placed in a onstant electric field is considered. It is shown that, despite the Coulomb blockade, interdot electron-density oscillations are possible. In these oscillations, a charge equal to the charge of a single electron is periodically transferred from one... | In this paper, we consider the second order wave equation discretized in space by summation-by-parts-simultaneous approximation term (SBP-SAT) technique. Special emphasis is placed on the accuracy analysis of the treatment of the Dirichlet boundary condition and of the grid interface condition. The result shows that a ... | eng_Latn | 10,953 |
Proton spin-lattice relaxation time in the superconducting intercalation complex Tas2(pyridine)1/2 | Proton NMR in TaS2(pyridine)1/2 shows that pyridine molecules form a rigid lattice with slow molecular motions up to 300 K. The protons' T1 is associated with interactions between the metallic layers and the molecular layers at least above 80 K. An anomalous T1 plateau below 80 K might tentatively be attributed to the ... | We present what is to our knowledge the most complete 1-D numerical analysis of the evolution and the propagation ::: dynamics of an ultrashort laser pulse in a Ti:Sapphire laser oscillator. This study confirms the dispersion ::: managed model of mode-locking, and emphasizes the role of the Kerr nonlinearity in generat... | eng_Latn | 10,954 |
Hierarchy of periodic orbits and associated energy level clusters in a quantum well in the regime of classical chaos | Abstract We have used resonant tunnelling spectroscopy to investigate the energy level spectrum of a wide 60 nm potential well with a strong magnetic field applied at an angle θ to the normal to the barriers. In this geometry, the current-voltage characteristic I(V) reveal distinct series of resonances which change dra... | Abstract The structures observed in recent missing mass experiments 3 He(p, d)X and p( 3 He, d)X are discussed and shown to agree to a high accuracy with a rotational like scheme M = M 0 + M 1 J ( J +1). An explanation is suggested as to why these structures have not been observed in some other experiments. | eng_Latn | 10,955 |
Time-domain PIC-modeling of suppression of self-modulation in the multiple cavity klystron oscillator with delayed feedback | The results of time-domain PIC-modeling of suppression of self-modulation in a four-cavity klystron oscillator with external delayed feedback are presented. The method is based on using an additional feedback loop with properly chosen delay and phase shift. The application of the method increases the self-modulation th... | A simplified treatment is proposed to study quantitatively the lattice dynamics of CsK, CsRb, and RbK alloy systems. The volume effect on the lattice dynamics of the pure constituent is considered, and the phonon dispersion relations of the local and band modes are obtained forthe Rb0.71K0.29, Rb0.3K0.7, Cs0.7K0.3, Cs0... | eng_Latn | 10,956 |
Decoherence and dynamics in continuous 3D-cooled atom interferometry | We study decoherence in continuously cooled atom interferometers by performing Raman-Ramsey fringe measurements in a continuous beam of 3D-sub-Doppler-cooled rubidium atoms. The atom beam is produced by a two-stage cold atom source that is designed to mitigate the decoherence of atomic interference caused by cooling in... | Summary In this abstract, we propose a new finite-difference scheme for solving wave equations. This scheme splits the multidimensional system into different directions and solves each direction implicitly. Unlike most splitting methods in the literature which produce numerical anisotropy in diagonal directions, this m... | eng_Latn | 10,957 |
The new solitrary wave solutions of the KdV-Burgers equation | With the help of maple,new explicit solitrary wave solutions of KdV-Burgers equation was obtained by bifunction method and Wu-eliminition method,thus the bifunction method was further complemented. | The matrix formalism previously introduced for the discussion of polymer dynamics is rendered more tractable by the introduction of an explicit operator representation satisfying boson commutation rules. Techniques are devised by which singular functions of segment coordinates may be expanded in a fluctuation series (c... | eng_Latn | 10,958 |
Some non-Fourier heat conduction characters under pulsed inlet conditions | Through simulating one- and two-dimensional non-Fourier heat conduction problems under different pulsed inlet conditions, this paper numerically predicts some different non-Fourier heat conduction characters arose from different pulse types and different pulse frequencies. Meanwhile, the differences among thermal wave,... | Dynamical properties of hole carriers introduced in the strongly correlated electron systems, i.e. the Mott-Hubbard insulators, are theoretically studied by using both the moment method and the operator transformation method. Particular emphasis is put on effects of the quantum spin fluctuation on the dynamics. | eng_Latn | 10,959 |
Statistics of resonances and delay times in random media : beyond random matrix theory | We review recent developments in quantum scattering from mesoscopic systems. Various spatial geometries whose closed analogues show diffusive, localized or critical behaviour are considered. These are the features that cannot be described by the universal random matrix theory results. Instead, one has to go beyond this... | We studied coupling of the terahertz radiation to periodically structured metal arrays. The role of polarization, surface plasmon dispersion and attenuation are evaluated experimentally and modeled theoretically. | eng_Latn | 10,960 |
A classical model of the photon echo | An observation and the theory of a nonlinear response in the ensemble of nonlinear classical oscillators excited by two field pulses — similar to the phenomenon of a photon echo in optics — are reported. It has been shown that an echo arises in any ensemble with an inhomogeneously broadened line regardless of the type ... | We review the current understanding of the acoustic phonon contribution to thermal transport in nanostructures from nanoparticles to thin films and membranes. Confinement and cavity effects will be discussed as well as electrical and optical measurement methods. | eng_Latn | 10,961 |
Well-posedness in the energy space for semilinear wave equations with critical growth | A sensing circuit is provided that is exceptionally sensitive. The circuit can respond to a minute change in a signal to actuate an electrically-operated device. The circuit is relatively simple, uses inexpensive components, and is compact. | This is a status report about the ongoing work on the realization of quantum field theory on curved graphene spacetimes that uses Weyl symmetry. The programme is actively pursued from many different perspectives. Here we point to what has been done, and to what needs to be done. | eng_Latn | 10,962 |
Bose Hubbard Model Confined in the Restricted Geometry | We investigated a Bose system confined in one-dimensional channel by using quantum Monte Carlo simulations. We observed temperature dependences of the superfluid density and two correlation functions along the tubal and the circumferential directions of the channel. As temperature is lowered, first the correlation deve... | Abstract Reducing the specimen-probe spacing to increase the sensitivity of measurement of weak remanence in geological samples, etc. introduces potential inaccuracies. These are analysed by comparing the field distributions derived for transversely magnetized cylinders with those for dipoles and for nulling coils. An ... | eng_Latn | 10,963 |
Semiclassical dynamics of spin density waves | We present a theoretical framework for equilibrium and nonequilibrium dynamical simulation of quantum states with spin-density-wave (SDW) order. Within a semiclassical adiabatic approximation that retains electron degrees of freedom, we demonstrate that the SDW order parameter obeys a generalized Landau-Lifshitz equati... | Thank you very much for reading selected works dynamical theory and quantum and classical statistical mechanics. As you may know, people have search numerous times for their chosen books like this selected works dynamical theory and quantum and classical statistical mechanics, but end up in harmful downloads. Rather th... | eng_Latn | 10,964 |
On partial differential equations of mixed type in N independent variables | It is proved that a large class of 2-nd order linear partial differential equations of mixed type in n independent variables can be solved by using the theory of positive symmetric systems of 1-st order partial differential equations. Some quasilinear equations of mixed type can be treated in the same way. | We study the photoinduced charge separation processes in solution through a pump–probe spectroscopy theory [Dah-Yen Yang and Sheh-Yi Sheu, J. Chem. Phys. 106, 9427 (1997)] numerically. We investigate the detailed mechanism of nonadiabatic transition processes via the transition differential flux analysis. For the harmo... | eng_Latn | 10,965 |
Superfluid model of high temperature superconductivity | Abstract A model of the superfluid type for high temperature superconductivity is suggested. Critical temperature and critical current density at the T =0 are calculated as functions of the current carriers density. | For Pt. IV see ibid., vol. 3, no. 6, p. 726 (1970). It is shown that the one-component virtual-mode theory of the previous paper, which is a well-defined translationally invariant many-body optical theory of the molecular fluid, can be extended without difficulty to the two-component fluid. It is inferred that the theo... | eng_Latn | 10,966 |
Frequency gaps for folded acoustic phonons in superlattices | Abstract We report on calculations of frequency gaps for mixed folded LA and TA phonons propagating perpendicular to the layers in a superlattice. We show that for certain growth directions (e.g., [011] and [012]), mini-gaps appear not only at the Brillouin-zone center and boundary, but also in the interior. Results ar... | The authors construct periodic interpolating wavelets and their duals from a periodio ftmction g(x) whose Fourier coefficiente are positive. The corresponding decomposition and reconstructlon algorithm is also given. The spline example shows that such kind of wavelets shares good localization with any desired regularit... | eng_Latn | 10,967 |
Volume, pressure and temperature dependences of vibrational frequencies | Abstract The mode vibrational frequencies of crystals depend solely on the variation of volume. The way frequencies change with temperature and pressure is purely a result of volume changes with temperature and pressure. This conclusion appears to be substantiated by the experimental results of forsterite. | We perform a Variational Quantum Monte Carlo simulation of an interacting ::: Fermi gas confined in a three dimensional harmonic potential. This gas is considered as the precursor system from which a molecular bosonic gas is formed. Based in the results of two-body calculations for trapped atoms, we propose a family of... | eng_Latn | 10,968 |
Selective reduction of sulfuric chloride: the structure of the chlorosulfite ion | The stable salt 2 is obtained from the reaction of SO2Cl2 with the imidazol-2-ylidene 1; the pyramidal structure of the chlorosulfite anion is confirmed both by X-ray structure and MO calculation. | We investigated the possible solutions of the higher order nonlinear Schrodinger (HNLS) equation describing femtosecond optical pulses in an optical fiber system. By using the Hirota direct method, we derived a fundamental solitary wave solution for arbitrary parameters and a N-soliton solution under some conditions. T... | eng_Latn | 10,969 |
Driven lattice gases : new perspectives | We report analytical studies of a series of driven systems: the driven lattice gas model, the randomly driven lattice gas, the two-temperature model and the driven bi-layer lattice gas. All of them are described within a unified framework that preserves the dynamical specifications present at the discrete level. Thus, ... | The objective of the article is to present several original results, obtained through the combined approach of experiments and two-dimensional modeling, which could suggest solutions in order to improve the choice of the operating conditions in an LPCVD (low-pressure chemical vapor deposition) reactor for this kind of ... | yue_Hant | 10,970 |
Topological susceptibility and instanton size distribution from over-improved cooling | We measure the topological susceptibility by cooling with an over-improved action. In contrast with usual cooling, large instantons survive over-improved cooling indefinitely . By varying the parameter of the over-improved cooling action, we measure the instanton size distribution. | In this paper, we consider the second order wave equation discretized in space by summation-by-parts-simultaneous approximation term (SBP-SAT) technique. Special emphasis is placed on the accuracy analysis of the treatment of the Dirichlet boundary condition and of the grid interface condition. The result shows that a ... | eng_Latn | 10,971 |
Particle-in-cell simulations of hot electron generation using defocused laser light in cone targets | The effects of defocusing a high intensity pulse of laser light on the generation of hot electrons in a cone are investigated using particle-in-cell simulations. The results indicate that defocused laser light can soften the electron energy spectrum and increase the coupling efficiency compared to the use of a laser in... | We show that the negative of the number of {ital floppy modes} behaves as a {ital free energy} for both connectivity and rigidity percolation, and we illustrate this result using Bethe lattices. The rigidity transition on Bethe lattices is found to be first order at a bond concentration close to that predicted by Maxwe... | eng_Latn | 10,972 |
Physicists Discover Way to “Switch” Between the Different States of Matter | An international team of physicists has managed for the first time to experimentally observe a transition between two different states of matter: a propagating polariton-soliton and a Bose-Einstein condensate. Furthermore, the researchers developed a theoretical model to explain such transitions and found a way to “swi... | ×
LOFT - A SALAAM MALE GENIE (Chants beat chop)
coucou chloe - doom
Bored Lord - Devil Talkin’
Ca$h Bandicoot - Bells
Superfície - Cerol
JAVASCRIPT - P!nky Ring
Randomer - Juju
Chants - Crushed Lollipop (VIP)
SHALT x Sean Paul - Temperature (MICHAELBRAILEY ‘Archeron’ ULTIMATE DESTRUCTION EDIT)
NKC - No Drama
NOIRE - TW... | eng_Latn | 10,973 |
What can be fully converted into work in a reversible isothermal expansion of an ideal gas? | For "closed systems" with no external source or sink of energy, the first law of thermodynamics states that a system's energy is constant unless energy is transferred in or out by mechanical work or heat, and that no energy is lost in transfer. This means that it is impossible to create or destroy energy. While heat ca... | Likewise, group theory helps predict the changes in physical properties that occur when a material undergoes a phase transition, for example, from a cubic to a tetrahedral crystalline form. An example is ferroelectric materials, where the change from a paraelectric to a ferroelectric state occurs at the Curie temperatu... | eng_Latn | 10,974 |
Universal Hall Response in Synthetic Dimensions | We theoretically study the Hall effect on interacting $M$-leg ladder systems, comparing different measures and properties of the zero temperature Hall response in the limit of weak magnetic fields. Focusing on $SU(M)$ symmetric interacting bosons and fermions, as relevant for e.g. typical synthetic dimensional quantum ... | We prove existence of solutions for a class of systems of subelliptic PDEs arising from Mean Field Game systems with H\"ormander diffusion. These results are motivated by the feedback synthesis Mean Field Game solutions and the Nash equilibria of a large class of $N$-player differential games. | eng_Latn | 10,975 |
Infinitely many solutions for a class of superlinear Dirac–Poisson system | Abstract This paper is concerned with the nonlinear Dirac–Poisson system − i ∑ k = 1 3 α k ∂ k u + ( V ( x ) + a ) β u + ω u − ϕ u = F u ( x , u ) , − Δ ϕ = 4 π | u | 2 , in R 3 where V is an external potential and F is a superlinear nonlinearity modeling various types of interactions. Existence and multiplicity of sta... | The main objective of this article is to study dynamic of the ::: three-dimensional Boussinesq equations with the periodic boundary ::: condition.We prove that when the Rayleigh number $R$ crosses the ::: first critical Rayleigh number $R_c$, the Rayleigh-Benard problem ::: bifurcates from the basic state to an global ... | eng_Latn | 10,976 |
Overtone resonance enhanced single-tube on-beam quartz enhanced photoacoustic spectrophone | A single-tube on-beam quartz enhanced photoacoustic spectroscopy (SO-QEPAS) spectrophone, which employs a custom-made quartz tuning fork (QTF) having a prong spacing of 700 μm and operating at the 1st overtone flexural mode, is reported. The design of QTF prong geometry allows the bare QTF to possess twice higher Q-fac... | In this paper the physical meaning of a nonlinear partial differential equation (nPDE) of the fourth order relating to wave theory is deduced to the first time. The equation under consideration belongs to a class of less studied nPDEs and an explicit physical meaning is not known until now. This paper however bridges t... | eng_Latn | 10,977 |
Finite groups of global breadth four in the sense of Frobenius | ABSTRACTLet G be a finite group and e a positive integer dividing |G|, the order of G. The size of the set Le(G)={x∈G|xe=1} was studied originally by G. Frobenius, in order to find restrictions on the structure of G. Heineken and Russo [4] introduced B(G)=max{|Le(G)|e|e∈Div(exp(G))} as global breadth in the sense of Fr... | Abstract In this paper, we investigate the time-dependent Ginzburg–Landau (TDGL) equations coming from the superfluid atomic Fermi gases near the Feshbach resonance from the fermion–boson model. By the method of a priori estimates, we get the existence of global attractors in the case of BCS–BEC crossover. | eng_Latn | 10,978 |
On a high-order iterative scheme for a nonlinear love equation | In this paper, a high order iterative scheme is established in order to get a convergent sequence, at a rate of order N, to a local unique weak solution of a nonlinear wave equation associated with homogeneous Dirichlet boundary conditions. This scheme shows that the convergence can be obtained with a high rate if the ... | Previously developed ``stochastic representation of deterministic interactions`` enables exact treatment of an open system without leaving its native phase space (Hilbert space) due to peculiar stochastic extension of the Liouville (von Neumann) equation for its statistical operator. Can one reformulate the theory in t... | eng_Latn | 10,979 |
Schrödinger operators with sparse potentials: asymptotics of the Fourier transform of the spectral measure | Abstract: We study the pointwise behavior of the Fourier transform of the spectral measure for discrete one-dimensional Schrödinger operators with sparse potentials. We find a resonance structure which admits a physical interpretation in terms of a simple quasiclassical model. We also present an improved version of kno... | In this article we exhibit some balls lying in the quasi-Fuchsian space of once punctured tori, which are maximal in the class of balls with the same centers. The centers of our maximal balls lie on the slice determined by the trace equation y = ¯ x. | eng_Latn | 10,980 |
Stochastic quantization and axial gauges | The simplest form of the Langevin equation for axial-gauge non-Abelian gauge theory fails to reproduce correctly a Wilson-loop calculation. | For a quantum channel of additive Gaussian noise with loss, in the general case of $n$ copies input, we show that up to first order perturbation, any non-Gaussian perturbation to the product thermal state input has a less quantum information transmission rate when the input energy tend to infinitive. | eng_Latn | 10,981 |
Quantum limit for two-dimensional resolution of two incoherent optical point sources | We obtain the multiple-parameter quantum Cram\'er-Rao bound for estimating the transverse Cartesian components of the centroid and separation of two incoherent optical point sources using an imaging system with finite spatial bandwidth. Under quite general and realistic assumptions on the point-spread function of the i... | The main objective of this article is to study dynamic of the ::: three-dimensional Boussinesq equations with the periodic boundary ::: condition.We prove that when the Rayleigh number $R$ crosses the ::: first critical Rayleigh number $R_c$, the Rayleigh-Benard problem ::: bifurcates from the basic state to an global ... | eng_Latn | 10,982 |
One-dimensional massless Dirac-particles in waveguide arrays with alternating coupling | We experimentally realized a waveguide device with alternating positive and negative coupling and show that this geometry is an optical simulator of the conditions found for a massless relativistic particle described by the one-dimensional Dirac-equations. | By calculating gradient trajectories in direction of ascending and descending scalar gradients a local maximum and a local minimum point is reached. Dissipation elements may then be defined as the spatial region from which the same pair of maximum and minimum points in a scalar field is reached. By exploring the two-po... | eng_Latn | 10,983 |
Quantification of Mixed-State Entanglement in a Quantum System Interacting with Two Time-Dependent Lasers | We give a theoretical description of two time-dependent laser beams in the Λ scheme using a unitary transformation method and a trapped three-level ion. We extend earlier investigations aimed at finding the three types of density matrices. We present figures showing that the entanglement degree accelerates due to the t... | In this article we are discussing the nature and mechanism of the huge ::: amount of heat generation in Megawatts Energy Catalyzers (E-cat) of Andrea ::: Rossi that are able to change the energetics of our civilization in general. ::: These processes are new effects of Unitary Quantum Theory and do not relate to ::: ei... | eng_Latn | 10,984 |
Strong optical scattering by femtosecond laser induced microbubbles inside water and other microscopic observations / Sayed Ahmed Islam Sanny | Nonlinear interactions of focused femtosecond laser with water can provide interesting optical phenomena, most commonly, laser induced breakdown in water which creates plasma, self-focusing or filamentation because of loose geometrical focusing condition, white light generation and blue shifted by plasma, conical emiss... | A systematic analytic treatment of static and dynamic fluctuations of the interface in the quantized Laplacian growth is given. The quantization procedure implies that the area of the domain equals an integer multiple of the area quanta $\hbar$, which also serves as a short distance cutoff preventing the cusps producti... | eng_Latn | 10,985 |
Fourier continuation method for incompressible fluids with boundaries | We present a Fourier Continuation-based parallel pseudospectral method for incompressible fluids in cuboid non-periodic domains. The method produces dispersionless and dissipationless derivatives with fast spectral convergence inside the domain, and with very high order convergence at the boundaries. Incompressibility ... | We perform a Variational Quantum Monte Carlo simulation of an interacting ::: Fermi gas confined in a three dimensional harmonic potential. This gas is considered as the precursor system from which a molecular bosonic gas is formed. Based in the results of two-body calculations for trapped atoms, we propose a family of... | eng_Latn | 10,986 |
FOUR-DIMENSIONAL YANG-MILLS THEORY IN LOCAL GAUGE INVARIANT VARIABLES | The general method that allows to formulate 4-D SU(N) Yang-Mills theory in terms of only local gauge invariant variables is presented. For the case N=2, that is discussed in details, this gauge invariant formulation appears to be very similar to R2-gravity. | Abstract In this paper, we investigate the time-dependent Ginzburg–Landau (TDGL) equations coming from the superfluid atomic Fermi gases near the Feshbach resonance from the fermion–boson model. By the method of a priori estimates, we get the existence of global attractors in the case of BCS–BEC crossover. | yue_Hant | 10,987 |
Methods for a class of discrete location problems | A generalized discrete location problem on a finite set is defined. An implicit enumeration method and two approximative ones for this problem are presented. Application to a special class of mixed 0-1 integer linear programming problems are outlined. | We present an analytical derivation of the distributed model from the experimentally well confirmed lumped approach for the description of light propagation in mode-locked fiber lasers operating in the scalar regime where the dynamics is mainly governed by the propagation of a single field component. As a limiting case... | eng_Latn | 10,988 |
The Interior Transmission Problem: Spectral Theory | In this paper we are concerned with the interior transmission eigenvalue problem connected with a degenerate boundary problem with limited smoothness assumptions concerning its coefficients and boundary. If $\mathcal{A}_2$ denotes the Hilbert space operator induced by this boundary problem, then in order to derive info... | AbstractWe first derive the state vector of a cascade three level atom interacting with pair coherent states in a kerr medium.It is shown by numerical calculations that the Kerr effect results in the adiabatic transition transfer phenomenon of electrons,and the superstructures in the long time behavior of the quantum ... | eng_Latn | 10,989 |
Four-wave sum mixing in beryllium around hydrogen Lyman-α | Radiation was generated between 1210 and 1230 A by four-wave sum mixing in beryllium vapor where the 2s2 1S–2s3d1D transition was two-photon resonant. Results indicate that beryllium will be an efficient nonlinear medium in this spectral region with improvements to the stability of the furnace to allow phase matching a... | The main objective of this article is to study dynamic of the ::: three-dimensional Boussinesq equations with the periodic boundary ::: condition.We prove that when the Rayleigh number $R$ crosses the ::: first critical Rayleigh number $R_c$, the Rayleigh-Benard problem ::: bifurcates from the basic state to an global ... | eng_Latn | 10,990 |
Turbulent compressible convection in a deep atmosphere. I - Preliminary two-dimensional results | Two-dimensional numerical computations are used to simulate turbulent convection of a compressible fluid in a deep atmosphere. We find that ''cells'' with sizes ranging from the total depth of the convection zone to the smallest scale height at the top coexist. While the biggest cells traverse the whole zone, the small... | Abstract In this paper, we investigate the time-dependent Ginzburg–Landau (TDGL) equations coming from the superfluid atomic Fermi gases near the Feshbach resonance from the fermion–boson model. By the method of a priori estimates, we get the existence of global attractors in the case of BCS–BEC crossover. | eng_Latn | 10,991 |
Dynamic of the Gaussian quantum discord and effect of non-Markovian degree | We study the dynamic of the Gaussian quantum discord in a continuous-variable system subject to a common non-Markovian environment with zero-temperature. By considering an initial two-mode Gaussian symmetric squeezed thermal state, we show that Gaussian discord has a very different dynamic characteristic in a non-Marko... | Abstract The aim of the present paper is to give the main characteristics of the finite-source G / M /r queue in equilibrium. Here unit i stays in the source for a random time having general distribution function F i ( x ) with density f i ( x ). The service times of all units are assumed to be identically and exponent... | eng_Latn | 10,992 |
Improved Filon-Type Asymptotic Methods for Highly Oscillatory Differential Equations | This chapter presents an effective improvement on the existing Filon-type asymptotic methods, so that the improved methods can numerically solve a class of multi-frequency highly oscillatory second-order differential equations with a positive semi-definite singular matrix which implicitly contains and preserves the osc... | We study non-equilibrium velocity fluctuations in a model for the sedimentation of non-Brownian particles experiencing long-range hydrodynamic interactions. The complex behavior of these fluctuations, the outcome of the collective dynamics of the particles, exhibits many of the features observed in sedimentation experi... | eng_Latn | 10,993 |
Concentration fluctuations and the heat capacity of overcooled melts in the Fe-B system | Concentration fluctuations, excess configurational entropies, and excess configurational heat capacities of melts in the Fe-B system are calculated at different temperatures. It is shown that concentration fluctuations play an important role in the amorphization of melts and should be considered in an analysis of the p... | In this paper we study a degenerate evolution system ::: $\mathbf H_t +\nabla \times [|\nabla \times \mathbf H|^{p-2}\nabla \times \mathbf H]=\mathbf F$ in a bounded domain as well as its limit as $p\to \infty$ subject ::: to appropriate initial and boundary conditions. This system governs the evolution ::: of the magn... | eng_Latn | 10,994 |
Probing the Quantum Analog of Chaos with Atoms in External Fields | For a few years, considerable interest arises in the problem of the quantum analog of classical chaos for hamiltonian system. Among several other simple atomic physics systems, the atom in a magnetic field turns out to be the most promising prototype for tackling such questions. The classical and quantum motions are no... | The LHC experiments ATLAS and CMS have measured V+jets and ttbar+jets final states over a large energy range in data collected between 2010 and 2012 at sqrt(s) = 7 TeV and sqrt(s) = 8 TeV. The results have been compared to pQCD calculations at NLO and have been used to validate novel Monte Carlo techniques. | eng_Latn | 10,995 |
Improved loop expansion for the effective potential of coupled boson-fermion systems at finite temperature and density | The effective potential V(phi) of a scalar field theory coupled to fermions is undefined near phi = 0 if the scalar field has a spontaneously broken symmetry. This shows up in a loop expansion as an imaginary part in V(phi) which persists to all temperatures and densities, even when the symmetry is restored. This paper... | In this paper, we consider the second order wave equation discretized in space by summation-by-parts-simultaneous approximation term (SBP-SAT) technique. Special emphasis is placed on the accuracy analysis of the treatment of the Dirichlet boundary condition and of the grid interface condition. The result shows that a ... | eng_Latn | 10,996 |
Quantum Hall effect on the Lobachevsky plane | The Hall conductivity of an electron gas on the surface of constant negative curvature (the Lobachevsky plane) in the presence of an orthogonal magnetic field is investigated. It is shown that the surface curvature decreases the quantum Hall plateau widths and shifts the steps in the Hall conductivity to higher magneti... | The main objective of this article is to study dynamic of the ::: three-dimensional Boussinesq equations with the periodic boundary ::: condition.We prove that when the Rayleigh number $R$ crosses the ::: first critical Rayleigh number $R_c$, the Rayleigh-Benard problem ::: bifurcates from the basic state to an global ... | eng_Latn | 10,997 |
On a class of nonlinear Schr6dinger equations | This paper concerns the existence of standing wave solutions of nonlinear Schr6dinger equations. Making a standing wave ansatz reduces the problem to that of studying the semiIinear elliptic equation: • u + b(x)u = f ( x , u), x e •". (*) The function f is assumed to be "superlinear". A special case is the power nonlin... | We study non-equilibrium velocity fluctuations in a model for the sedimentation of non-Brownian particles experiencing long-range hydrodynamic interactions. The complex behavior of these fluctuations, the outcome of the collective dynamics of the particles, exhibits many of the features observed in sedimentation experi... | eng_Latn | 10,998 |
Equations of Langmuir turbulence and nonlinear Schrödinger equation: Smoothness and approximation | We consider the following family of systems parametrized by e > 0, which describe Langmuir's turbulence. In the case where initial data are sufficiently small, we study the asymptotic behaviour of the solutions (Ee, ne) when e goes to zero, for d = 1, 2, 3. Namely, we state convergence results of (Ee, ne) to the couple... | We apply the $\delta$-expansion perturbation scheme to the $\lambda \phi^{4}$ self-interacting scalar field theory in 3+1 D at finite temperature. In the $\delta$-expansion the interaction term is written as $\lambda (\phi^{2})^{ 1 + \delta}$ and $\delta$ is considered as the perturbation parameter. We compute within t... | eng_Latn | 10,999 |
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