publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
|---|---|---|---|
2013-05-09 | Spin Conductivity in Two-Dimensional Non-Collinear Antiferromagnets | We propose a method to derive the spin current operator for non-collinear
Heisenberg antiferromagnets. We show that the spin conductivity calculated by
the spectral representation with the spin current satisfies the f-sum rule. We
also study the spin conductivity at T=0 within spin wave theory. We show how
the spin con... | 1305.2072v3 |
2015-04-30 | Spin electron acoustic soliton: Separate spin evolution of electrons with exchange interaction | Separate spin evolution quantum hydrodynamics is generalized to include the
Coulomb exchange interaction. The Coulomb exchange interaction is considered as
the interaction between the spin-down electrons being in the quantum states
occupied by one electron, giving main contribution in the equilibrium. The
generalized m... | 1504.08234v2 |
2012-05-06 | Free-Electron Laser-Powered Electron Paramagnetic Resonance Spectroscopy | Electron paramagnetic resonance (EPR) spectroscopy interrogates unpaired
electron spins in solids and liquids to reveal local structure and dynamics;
for example, EPR has elucidated parts of the structure of protein complexes
that have resisted all other techniques in structural biology. EPR can also
probe the interpla... | 1205.1186v1 |
2012-07-11 | Well-established nucleon resonances revisited by double-polarization measurements | The first measurement is reported of the double-polarization observable G in
photoproduction of neutral pions off protons, covering the photon energy range
from 620 to 1120 MeV and the full solid angle. G describes the correlation
between the photon polarization plane and the scattering plane for protons
polarized alon... | 1207.2686v2 |
2013-08-28 | Second harmonic generation spectroscopy of excitons in ZnO | Nonlinear optics of semiconductors is an important field of fundamental and
applied research, but surprisingly the role of excitons in the coherent
processes leading to harmonics generation has remained essentially unexplored.
Here we report results of a comprehensive experimental and theoretical study of
the three-pho... | 1308.6219v1 |
2015-09-21 | Kondo induced π-phase shift of microwave photons in a circuit quantum electrodynamics architecture | Mesoscopic systems constitute appealing platforms to study many-body physics
with light and matter degrees of freedom. The Kondo effect refers to the
screening of a spin-1/2 impurity by a cloud of conduction electrons, then
forming a many-body Fermi liquid ground state. The Kondo resonance produces a
phase shift in the... | 1509.06141v3 |
2016-08-17 | Modelling duality between bound and resonant meson spectra by means of free quantum motions on the de Sitter space time dS4 | We seek for a pair of a well and barrier potentials such that the real parts
of the complex energies of the resonances transmitted through the barrier equal
the energies of the states bound within the well and find the hyperbolic
Poeschl-Teller barrier, ~sech^2\rho, and the trigonometric Scarf well, ~
\sec^2\chi. The p... | 1608.05041v2 |
2018-05-23 | Non-strange Dibaryon Resonances Observed in the $γd\to π^0π^0 d$ Reaction | Coherent double neutral-pion photoproduction on the deuteron,
$\gamma{d}${$\to$}$\pi^0\pi^0{d}$, has been experimentally studied at incident
photon energies ranging from 0.75 to 1.15 GeV. The total cross section as a
function of the $\gamma{d}$ center-of-mass energy shows resonance-like
behavior, which peaks at approxi... | 1805.08928v2 |
2020-06-05 | Time-resolved resonant elastic soft X-ray scattering at Pohang Accelerator Laboratory X-ray Free Electron Laser | Resonant elastic X-ray scattering has been widely employed for exploring
complex electronic ordering phenomena, like charge, spin, and orbital order, in
particular in strongly correlated electronic systems. In addition, recent
developments of pump-probe X-ray scattering allow us to expand the
investigation of the tempo... | 2006.03273v2 |
2022-07-05 | Polarization observables in double neutral pion photoproduction | Measurements of target asymmetries and double-polarization observables for
the reaction $\gamma p\to p\pi^0\pi^0$ are reported. The data were taken with
the CBELSA/TAPS experiment at the ELSA facility (Bonn University) using the
Bonn frozen-spin butanol (C$_4$H$_9$OH) target, which provided transversely
polarized proto... | 2207.01981v1 |
2017-12-26 | Optimal Orientations of Quartz Crystals for Bulk Acoustic Wave Resonators with the Consideration of Thermal Properties | Piezoelectric crystals are widely used for acoustic wave resonators of
different functioning modes and types including BAW and SAW. It is well-known
that only some special orientations of crystals will exhibit desirable
properties such as mode couplings, thermal sensitivity, acceleration
sensitivity, and others that ar... | 1712.09187v1 |
2024-02-09 | Thermal oscillations and resonance in electron-phonon interaction process | Thermal resonance, in which the temperature amplitude attains a maximum value
(peak) in response to an external exciting frequency source, is a phenomenon
pertinent to the presence of underdamped thermal oscillations and explicit
finite-speed for the thermal wave propagation. The present work investigates
the occurrenc... | 2403.09684v1 |
2012-10-03 | Nuclear structure of 30S and its implications for nucleosynthesis in classical novae | The uncertainty in the 29P(p,gamma)30S reaction rate over the temperature
range of 0.1 - 1.3 GK was previously determined to span ~4 orders of magnitude
due to the uncertain location of two previously unobserved 3+ and 2+ resonances
in the 4.7 - 4.8 MeV excitation region in 30S. Therefore, the abundances of
silicon iso... | 1210.1194v1 |
2018-07-04 | Phase Boundary Exchange Coupling in the Mixed Magnetic Phase Regime of a Pd-doped FeRh Epilayer | Spin-wave resonance measurements were performed in the mixed magnetic phase
regime of a Pd-doped FeRh epilayer that appears as the first-order
ferromagnetic-antiferromagnetic phase transition takes place. It is seen that
the measured value of the exchange stiffness is suppressed throughout the
measurement range when co... | 1807.01615v6 |
2017-01-07 | High resolution two-dimensional optical spectroscopy of electron spins | Multidimensional coherent optical spectroscopy is one of the most powerful
tools for investigating complex quantum mechanical systems. While it was
conceived decades ago in magnetic resonance spectroscopy using micro- and
radio-waves, it has recently been extended into the visible and UV spectral
range. However, resolv... | 1701.01826v2 |
2020-01-17 | Resonances in non-axisymmetric gravitational potentials | We study sectoral resonances of the form $j\kappa= m(n-\Omega)$ around a
non-axisymmetric body with spin rate $\Omega$, where $\kappa$ and $n$ are the
epicyclic frequency and mean motion of a particle, respectively, where $j>0$
and $m$ ($<0$ or $>0$) are integers, $j$ being the resonance order. This
describes $n/\Omega... | 2001.06382v1 |
2005-10-04 | Wave Excitation in Three-Dimensional Disks by External Potential | We study the excitation of density and bending waves and the associated
angular momentum transfer in gaseous disks with finite thickness by a rotating
external potential. The disk is assumed to be isothermal in the vertical
direction and has no self-gravity. The disk perturbations are decomposed into
different modes, e... | 0510069v2 |
2000-09-22 | Unitarity and Interfering Resonances in pipi Scattering and in Pion Production piN->pipiN | Additivity of Breit-Wigner phases has been proposed to describe interfering
resonances in partial waves in $\pi\pi$ scattering. This assumption leads to an
expression for partial wave amplitudes that involves products of Breit-Wigner
amplitudes. We show that this expression is equivalent to a coherent sum of
Breit-Wign... | 0009275v2 |
2010-10-11 | Wave functions for dynamically generated resonances; the two $Λ(1405)$ and $Λ(1670)$ | In this work we develop a formalism to evaluate wave functions in momentum
and coordinate space for the resonant states dynamically generated in a unitary
coupled channel approach. The on shell approach for the scattering matrix,
commonly used, is also obtained in Quantum Mechanics with a separable
potential, which all... | 1010.2147v1 |
2023-10-02 | Three- and four-wave resonances in the nonlinear quadratic Kelvin lattice | In this paper we investigate analytically and numerically the nonlinear
Kelvin lattice, namely a chain of masses and nonlinear springs, as in the
alpha-Fermi-Pasta-Ulam-Tsingou (FPUT) chain, where, in addition, each mass is
connected to a nonlinear resonator, i.e., a second mass free to oscillate. Both
nonlinearities a... | 2310.02287v1 |
2023-11-03 | Low-loss Millimeter-wave Resonators with an Improved Coupling Structure | Millimeter-wave superconducting resonators are a useful tool for studying
quantum device coherence in a new frequency domain. However, improving
resonators is difficult without a robust and reliable method for coupling
millimeter-wave signals to 2D structures. We develop and characterize a tapered
transition structure ... | 2311.01670v3 |
2000-09-27 | Data Analysis of Continuous Gravitational Wave Signal: Fourier Transform | We present the Fourier Transform of continuous gravitational wave for
arbitrary location of detector and source and for any duration of observation
time in which both rotational motion of earth about its spin axis and orbital
motion around sun has been taken into account. We also give the method to
account the spin dow... | 0009094v1 |
2002-09-26 | Precession of a particle with anomalous magnetic moment in electromagnetic and gravitational pp-wave fields | We present an exact solution of the Bargmann-Michel-Telegdi (BMT) equations
for the dynamics of a spin particle in external electromagnetic and
gravitational pp-wave fields. We demonstrate that an anomalous magnetic moment
gives rise to an additional spin rotation which is modulated both by the
electromagnetic and by t... | 0209099v1 |
2003-01-30 | Nuclear Wave Functions for Spin and Pseudospin Partners | Using relations between wave functions obtained in the framework of the
relativistic mean field theory, we investigate the effects of pseudospin and
spin symmetry breaking on the single nucleon wave functions in spherical
nuclei. In our analysis, we apply both relativistic and non-relativistic
self-consistent models as... | 0301098v1 |
2000-04-20 | Spin accumulation in the semi classical and quantum regimes | We consider spin accumulation at a ferromagnet--normal metal interface in the
presence of magnetic scattering in the normal metal. In the classical regime,
we discuss the inverse Drude scaling of the conductance as a function of the
interface transparencies. We present a treatment based on an exact solution of
the Bolt... | 0004355v2 |
2001-05-27 | Electron spin resonance in high-field critical phase of gapped spin chains | Motivated by recent experiments on Ni(C_{2}H_{8}N_{2})_{2}Ni(CN)_{4}
(commonly known as NENC), we study the electron spin resonance in the critical
high-field phase of the antiferromagnetic S=1 chain with strong planar
anisotropy and show that the ESR spectra exhibit several peculiarities in the
critical phase. Possibl... | 0105515v1 |
2002-05-27 | Destruction of the Kondo effect by a local measurement | We show that the local spin measurement which decoheres the localized spin in
a Kondo system, suppresses the Abrikosov-Suhl resonance and destroys the Kondo
effect. This happens due to elimination of the entanglement between the
localized spin and the conduction electrons, and differs essentially from
smearing of the r... | 0205540v1 |
2002-10-09 | Theory of spin relaxation in magnetic resonance force microscopy | We study relaxation of a spin in magnetic resonance force microscopy (MRFM)
experiments. We evaluate the relaxation rate for the spin caused by
high-frequency mechanical noise of the cantilever under the conditions of
adiabatic spin inversion. We find qualitative agreement between the obtained
relaxation time and the e... | 0210218v1 |
2004-02-28 | Resonant Spin Hall Conductance in Two-Dimensional Electron Systems with Rashba Interaction in a Perpendicular Magnetic Field | We study transport properties of a two-dimensional electron system with
Rashba spin-orbit coupling in a perpendicular magnetic field. The spin orbit
coupling competes with Zeeman splitting to introduce additional degeneracies
between different Landau levels at certain magnetic fields. This degeneracy, if
occuring at th... | 0403005v1 |
2004-07-06 | Spin characterization and control over the regime of radiation-induced zero-resistance states | Over the regime of the radiation-induced zero-resistance states and
associated oscillatory magnetoresistance, we propose a low magnetic field
analog of quantum-Hall-limit techniques for the electrical detection of
electron spin- and nuclear magnetic- resonance, dynamical nuclear polarization
via electron spin resonance... | 0407143v1 |
2007-03-07 | Theory of resonant spin Hall effect | A biref review is presented on resonant spin Hall effect, where a tiny
external electric field induces a saturated spin Hall current in a
2-dimensional electron or hole gas in a perpendicular magnetic field. The
phenomenon is attributted to the energy level crossing associated with the
spin-orbit coupling and the Zeema... | 0703176v1 |
2007-12-21 | Nuclear spin relaxation induced by a mechanical resonator | We report on measurements of the spin lifetime of nuclear spins strongly
coupled to a micromechanical cantilever as used in magnetic resonance force
microscopy. We find that the rotating-frame correlation time of the statistical
nuclear polarization is set by the magneto-mechanical noise originating from
the thermal mo... | 0712.3792v1 |
2008-01-14 | Dynamic nuclear polarization and spin-diffusion in non-conducting solids | There has been much renewed interest in dynamic nuclear polarization (DNP),
particularly in the context of solid state biomolecular NMR and more recently
dissolution DNP techniques for liquids. This paper reviews the role of spin
diffusion in polarizing nuclear spins and discusses the role of the spin
diffusion barrier... | 0801.2170v1 |
2008-05-02 | Manipulating Spins by Cantilever Synchronized Frequency Modulation: A Variable Resolution Magnetic Resonance Force Microscope | We report a new spin manipulation protocol for periodically reversing the
sample magnetization for Magnetic Resonance Force Microscopy. The protocol
modulates the microwave excitation frequency synchronously with the position of
the oscillating detection cantilever, thus allowing manipulation of the spin
magnetization ... | 0805.0266v1 |
2008-05-08 | Scanning magnetic field microscope with a diamond single-spin sensor | We describe a scanning device where a single spin is used as an
ultrasensitive, nanoscale magnetic field sensor. As this "probe spin" we
consider a single nitrogen-vacancy defect center in a diamond nanocrystal,
attached to the tip of the scanning device. Changes in the local field seen by
the probe spin are detected b... | 0805.1215v3 |
2009-08-21 | Structure of a spin 1/2 | The non-hermitian states that lead to separation of the four Bell states are
examined. In the absence of interactions, a new quantum state of spin magnitude
1/(root(2) is predicted. Properties of these states show that an isolated spin
is a resonance state with zero net angular momentum, consistent with a point
particl... | 0908.3219v1 |
2010-10-07 | Two-spin relaxation of P-dimers in Silicon | We study two-electron singlet-triplet relaxation of donor-bound electrons in
Silicon. Hyperfine interaction of the electrons with the phosphorus (P) nuclei,
in combination with the electron-phonon interaction, lead to relaxation of the
triplet states. Within the Heitler-London and effective mass approximations, we
calc... | 1010.1513v1 |
2011-04-06 | Quantum entanglement of a tunneling spin with mechanical modes of a torsional resonator | We solve Schr\"odinger equation describing a tunneling macrospin coupled to a
torsional oscillator. Energy spectrum is studied for various quantum regimes.
Magnetic susceptibility and noise spectrum are computed. We show that
entanglement of the spin with mechanical modes of a subnanometer oscillator
results in the dec... | 1104.1170v1 |
2011-06-03 | Effective transition operators for resonant inelastic X-ray scattering | Effective symmetry-based transition operators for resonant inelastic X-ray
scattering (RIXS) are derived that show how the scattering between different
states depends on the polarization of the incoming and outgoing X-rays. In
spherical symmetry, the effective operators can be rewritten in terms of spin
operators, alth... | 1106.0640v1 |
2013-07-03 | Large Spin Pumping from Epitaxial Y3Fe5O12 Thin Films to Pt and W Layers | Epitaxial Y3Fe5O12 thin films have been deposited by off-axis sputtering,
which exhibit excellent crystalline quality, enabling observation of large spin
pumping signals in Pt/Y3Fe5O12 and W/Y3Fe5O12 bilayers driven by cavity
ferromagnetic resonance. The inverse spin Hall voltages reach 2.10 mV and -5.26
mV in 5-mm lon... | 1307.1172v1 |
2013-08-01 | Power dependence of electric dipole spin resonance | We develop a formalism of electric dipole spin resonance (EDSR) based on
slanting magnetic field, where we especially investigate the microwave
amplitude dependence. With increasing microwave amplitude, the Rabi frequency
increases linearly for a spin confined in a harmonic potential. How- ever, when
the spin is confin... | 1308.0071v1 |
2014-11-26 | General Magnetic Transition Dipole Moments for Electron Paramagnetic Resonance | We present general expressions for the magnetic transition rates in beam
Electron Paramagnetic Resonance (EPR) experiments of anisotropic spin systems
in the solid state. The expressions apply to general spin centers and arbitrary
excitation geometry (Voigt, Faraday, and intermediate). They work for linear
and circular... | 1411.7187v1 |
2016-04-15 | Electron magnetic resonance in magnetic nanoparticles: dependence on the particle size and applicability of the modified giant spin model | Superparamagnetic nanoparticles containing hundreds and thousands of coupled
electron spins are on the boundary between classical and quantum behavior, and
demonstrate features which are typical for paramagnetic spins and absent in
macroscopic ferromagnetic systems. In order to better understand the evolution
of magnet... | 1604.04594v2 |
2016-05-10 | Coherently coupling distinct spin ensembles through a high-$T_c$ superconducting resonator | The problem of coupling multiple spin ensembles through cavity photons is
revisited by using PyBTM organic radicals and a high-$T_c$ superconducting
coplanar resonator. An exceptionally strong coupling is obtained and up to
three spin ensembles are simultaneously coupled. The ensembles are made
physically distinguishab... | 1605.02879v1 |
2017-09-21 | Optical bistability under non-resonant excitation in spinor polariton condensates | We realise bistability in the spinor of polariton condensates under
non-resonant optical excitation and in the absence of biasing external fields.
Numerical modelling of the system using the Ginzburg-Landau equation with an
internal Josephson coupling between the two spin components of the condensate
qualitatively desc... | 1709.07351v1 |
2014-06-26 | Boundary between the thermal and statistical polarization regimes in a nuclear spin ensemble | As the number of spins in an ensemble is reduced, the statistical uctuations
in its polarization eventually exceed the mean thermal polarization. This
transition has now been surpassed in a number of recent nuclear magnetic
resonance experiments, which achieve nanometer-scale detection volumes. Here,
we measure nanomet... | 1406.6869v2 |
2020-03-20 | Electron Spin Resonance with up to 20 Spin Sensitivity Measured using a Superconducting Flux Qubit | We report on electron spin resonance spectroscopy measurements using a
superconducting flux qubit with a sensing volume of 6 fl. The qubit is read out
using a frequency-tunable Josephson bifurcation amplifier, which leads to an
inferred measurement sensitivity of about 20 spins in a 1 s measurement. This
sensitivity re... | 2003.09131v1 |
2020-02-20 | Thermal rectification and spin-spin coupling of non-reciprocal localized and surface modes | We study the rectification of near-field radiative heat transfer between two
InSb nano-particles due to the presence of non-reciprocal surface modes in a
nearby InSb sample when an external magnetic field is applied and its
dependence on the magnetic field strength. We reveal the spin-spin coupling
mechanism of the loc... | 2002.08752v1 |
2021-03-10 | Anisotropic superconducting spin transport at magnetic interfaces | We present a theoretical investigation of anisotropic superconducting spin
transport at a magnetic interface between a p-wave superconductor and a
ferromagnetic insulator. Our formulation describes the ferromagnetic resonance
modulations due to spin current generation depending on spin-triplet Cooper
pair, including th... | 2103.05871v3 |
2023-07-18 | Electron spin resonance study on the 4f honeycomb quantum magnet YbCl3 | The local magnetic properties of Yb$^{3+}$ in the layered honeycomb material
YbCl$_{3}$ were investigated by electron spin resonance on single crystals. For
in-plane and out-of-plane field orientations the $g$-factor shows a clear
anisotropy ($g_\|=2.97(8)$ and $g_\bot =1.53(4)$), whereas the low temperature
exchange c... | 2307.09335v1 |
2010-05-12 | Turbulence of capillary waves revisited | Kinetic regime of capillary wave turbulence is classically regarded in terms
of three-wave interactions with the exponent of power energy spectrum being
$\nu=-7/4$ (two-dimensional case). We show that a number of assumptions
necessary for this regime to occur can not be fulfilled. Four-wave interactions
of capillary wa... | 1005.2067v3 |
2012-08-21 | Gravitational waves from smooth hybrid new infation | We calculate the production of the gravitational waves from a double
inflation model with lattice simulations. Between the two inflationary stages,
gravitational waves with a characteristic frequency are produced by
fluctuations of the scalar fields enhanced through parametric resonance. The
wavelength of the produced ... | 1208.4160v2 |
2016-02-26 | Tree-wave mixing of ordinary and backward electromagnetic waves: extraordinary transients | Three-wave mixing of ordinary and backward electromagnetic waves in pulsed
regime is investigated in the metamaterials, which enable co-existence and
phase matching of such waves. It is shown that opposite direction of phase
velocity and energy flux in backward waves gives rise to extraordinary
transient processes in g... | 1602.08217v1 |
2016-04-25 | Complete Hamiltonian formalism for inertial waves in rotating fluids | Complete Hamiltonian formalism is suggested for inertial waves in rotating
incompressible fluid. Resonance three-wave interaction processes -- decay
instability and confluence of two waves -- are shown to play a key role in the
weakly nonlinear dynamics and statistics of inertial waves in the rapid
rotation case. Futur... | 1604.07136v2 |
2017-02-13 | On the kinetic equation in Zakharov's wave turbulence theory for capillary waves | The wave turbulence equation is an effective kinetic equation that describes
the dynamics of wave spectrum in weakly nonlinear and dispersive media. Such a
kinetic model has been derived by physicists in the sixties, though the
well-posedness theory remains open, due to the complexity of resonant
interaction kernels. I... | 1702.03892v2 |
2017-03-08 | A generalized action-angle representation of wave interaction in stratified shear flows | In this paper we express the linearized dynamics of interacting interfacial
waves in stratified shear flows in the compact form of action-angle Hamilton
equations. The pseudo-energy serves as the Hamiltonian of the system, the
action coordinates are the contribution of the interfacial waves to the
wave-action, and the ... | 1703.03032v2 |
2021-11-27 | Three-wave interactions and strange attractor | It is shown that the incorporation of linear sink/source terms in the
three-wave resonance interaction model results in the time dependence of the
wave amplitudes, which could exhibit the properties of a strange attractor.
This finding demonstrates that the transition to turbulent dynamics of the
waves could be related... | 2111.13937v1 |
2009-04-07 | Probabilistic Interpretation of Resonant States | We provide probabilistic interpretation of resonant states. This we do by
showing that the integral of the modulus square of resonance wave functions
(i.e., the conventional norm) over a properly expanding spatial domain is
independent of time, and therefore leads to probability conservation. This is
in contrast with t... | 0904.1044v2 |
2022-06-20 | Parametrically-driven temporal cavity solitons in a bichromatically-driven pure Kerr resonator | Temporal cavity solitons (CSs) are pulses of light that can persist endlessly
in dispersive, nonlinear optical resonators. They have been extensively studied
in the context of resonators with purely cubic (Kerr-type) nonlinearity that
are externally-driven with a monochromatic continuous wave laser -- in such
systems, ... | 2206.09533v1 |
1996-03-18 | Renormalization-Group Approach to Spin-Wave Theory of Quantum Heisenberg Ferromagnet | The renormalization-group method is used to analyze the low-temperature
behaviour of a two-dimentional, spin-$s$ quantum Heisenberg ferromagnet. A set
of recursion equations is derived in an one-loop approximation. The
low-temperature asymptotics of the correlation length and the uniform
susceptibility are obtained. Fo... | 9603123v1 |
2004-04-22 | On the theory of polarized Fermi liquid | The transport equation for transverse vibrations of magnetization in spin
polarized Fermi liquid is derived from integral equation for the vertex
function. The dispersion law for the transverse spin waves is established. The
existance of zero-temperature spin-waves attenuation is confirmed. The problem
of similar deriv... | 0404539v1 |
1997-10-02 | Pseudo-spin Symmetry and Relativistic Single-nucleon Wave Functions | We show that the occurrence of approximate pseudo-spin symmetry in nuclei is
connected with certain similarities in the relativistic single-nucleon wave
functions of the corresponding pseudo-spin doublets. We perform a case study in
which several examples and the systematics of this connection are explored. | 9710011v1 |
1998-02-17 | Electromagnetic Waves in the Vacuum with Torsion and Spin | Exact radiative wave solutions to the classical homogeneous Maxwell equations
in the vacuum have been found that are not transverse, exhibit both torsion and
spin, and for which the second Poincare invariant, E.B, is not zero. Two four
component rank 3 tensors of spin current and torsion are constructed on
topological ... | 9802033v1 |
2009-07-09 | Nuclear spin-density wave theory | Recently [arXiv:0906.5417], we reported a quantum phase transition of 103mRh
excited by bremsstrahlung pumping. The long-lived Moessbauer excitation is
delocalized as a neutral quasiparticle carrying a spin current. This letter
gives a general theory for a nuclear spin-density wave propagating on crystals
consisting of... | 0907.1446v2 |
2004-03-01 | Density waves in the shearing sheet IV. Interaction with a live dark halo | It is shown that if the self-gravitating shearing sheet, a model of a patch
of a galactic disk, is embedded in a live dark halo, this has a strong effect
on the dynamics of density waves in the sheet. I describe how the density waves
and the halo interact via halo particles either on orbits in resonance with the
wave o... | 0403027v1 |
2005-03-09 | Perturbative analysis of wave interactions in nonlinear systems | This work proposes a new way for handling obstacles to asymptotic
integrability in perturbed nonlinear PDEs within the method of Normal Forms -
NF - for the case of multi-wave solutions. Instead of including the whole
obstacle in the NF, only its resonant part is included, and the remainder is
assigned to the homologic... | 0503019v1 |
2008-10-29 | Mechanism of Terahertz Electromagnetic Wave Emission from Intrinsic Josephson Junctions | Using a 3-D parallelepiped model of intrinsic Josephson junctions, we
calculate the cavity resonance modes of Josephson plasma waves excited by
external electric currents. The electromagnetic (EM) wave of the excited
Josephson plasma is converted to a THz EM wave at the sample surfaces. The
cavity modes accompanied by ... | 0810.5268v1 |
2009-07-03 | Inertial waves near corotation in 3D hydrodynamical disks | This paper concerns the interaction between non-axisymmetric inertial waves
and their corotation resonances in a hydrodynamical disk. Inertial waves are of
interest because they can localise in resonant cavities circumscribed by
Lindblad radii, and as a consequence exhibit discrete oscillation frequencies
that may be o... | 0907.0641v3 |
2012-12-22 | Run-up amplification of transient long waves | The extreme characteristics of long wave run-up are studied in this paper.
First we give a brief overview of the existing theory which is mainly based on
the hodograph transformation (Carrier & Greenspan, 1958). Then, using numerical
simulations, we build on the work of Stefanakis et al. (2011) for an infinite
sloping ... | 1212.5689v3 |
2015-05-20 | Nonlinear Low-to-High Frequency Energy Cascades in Diatomic Granular Crystals | We study wave propagation in strongly nonlinear 1D diatomic granular crystals
under an impact load. Depending on the mass ratio of the `light' to `heavy'
beads, this system exhibits rich wave dynamics from highly localized traveling
waves to highly dispersive waves featuring strong attenuation. We
experimentally demons... | 1505.05556v2 |
2016-09-18 | Semiclassical soliton ensembles for the three-wave resonant interaction equations | The three-wave resonant interaction equations are a non-dispersive system of
partial differential equations with quadratic coupling describing the time
evolution of the complex amplitudes of three resonant wave modes. Collisions of
wave packets induce energy transfer between different modes via pumping and
decay. We an... | 1609.05416v1 |
2018-11-02 | Effect of Inner Lindblad Resonance on Spiral Density Waves Propagation in Disc Galaxies: Reflection over Absorption | Interaction of spiral density waves with stars in the vicinity of the inner
Lindblad resonance in galactic discs is investigated using the linear
perturbation theory and the leading orders in the epicyclic and WKB
approximations. In analogy with shear flows in hydrodynamics, we conjecture
that a weak nonlinearity in a ... | 1811.00847v1 |
2019-11-01 | A tunable High-Q millimeter wave cavity for hybrid circuit and cavity QED experiments | The millimeter wave (mm-wave) frequency band provides exciting prospects for
quantum science and devices, since many high-fidelity quantum emitters,
including Rydberg atoms, molecules and silicon vacancies, exhibit resonances
near 100 GHz. High-Q resonators at these frequencies would give access to
strong interactions ... | 1911.00553v1 |
2020-08-07 | Quantifying the evidence for resonant damping of coronal waves with foot-point wave power asymmetry | We use Coronal Multi-channel Polarimeter (CoMP) observations of propagating
waves in the solar corona and Bayesian analysis to assess the evidence of
models with resonant damping and foot-point wave power asymmetries. Two nested
models are considered. The reduced model considers resonant damping as the sole
cause of th... | 2008.03004v1 |
2020-09-17 | Resonant absorption: transformation of compressive motions into vortical motions | This paper investigates the changes in spatial properties when
magnetohydrodynamic (MHD) waves undergo resonant damping in the Alfv\'en
continuum. The analysis is carried out for a 1D cylindrical pressure-less
plasma with a straight magnetic field. The effect of the damping on the spatial
wave variables is determined b... | 2009.08152v1 |
2021-04-09 | An alternative form of the fundamental plasma emission through the coalescence of Z-mode waves with whistlers | Plasma emission (PE), i.e., electromagnetic radiation at the plasma frequency
and its second harmonic, is a general process occurring in both astrophysical
and laboratory plasmas. The prevailing theory presents a multi-stage process
attributed to the resonant coupling of beam-excited Langmuir waves with
ion-acoustic wa... | 2104.04267v1 |
2022-09-01 | Pedal underwater motion triggers highly-peaked resonance on water waves | Pedal wavemakers that generate surface gravity waves through bed orbital
motion have been shown to produce particle-excursion patterns that mimic
deep-water wave behaviour but in finite-depth channels. In this article, we
report that gravity waves in a general viscous fluid can resonate through the
action of pedal wave... | 2209.00748v1 |
2023-05-01 | Novel high-frequency gravitational waves detection with split cavity | Gravitational waves can generate electromagnetic effects inside a strong
electric or magnetic field within the Standard Model and general relativity.
Here we propose using a quarterly split cavity and LC(inductor and
capacitor)-resonance circuit to detect a high-frequency gravitational wave from
0.1 MHz to GHz. We perf... | 2305.00877v2 |
2003-01-23 | The spin of the mesons and baryons | It is shown that the spin of pi (0), eta, Lambda, Sigma (+,-,0), Xi (-,0),
Lambda-c (+), Sigma-c (0), Xi-c (0), and Omega-c (0) mesons and baryons can be
explained by the sum of the angular momentum vectors and spin vectors of the
electromagnetic waves which are in these particles according to the standing
wave model. ... | 0301060v3 |
2004-09-18 | Spin wave based quantum storage of electronic spin with a ring array of nuclear spins | We propose a solid state based protocol to implement the universal quantum
storage for electronic spin qubit. The quantum memory in this scheme is the
spin wave excitation in the ring array of nuclei in a quantum dot. We show that
the quantum information carried by an arbitrary state of the electronic spin
can be coher... | 0409120v3 |
2011-10-13 | Competing Hyperfine and Spin-Orbit Couplings: Spin Relaxation in a Quantum Hall Ferromagnet | Spin relaxation in a quantum Hall ferromagnet, where filling is $\nu=1, 1/3,
1/5,...$, can be considered in terms of spin wave annihilation/creation
processes. Hyperfine coupling with the nuclei of the GaAs matrix provides spin
non-conservation in the two-dimensional electron gas and determines spin
relaxation in the q... | 1110.3006v1 |
2011-11-21 | Wave-diffusion theory of spin transport in metals after ultrashort-pulse excitation | Spin and charge-current dynamics after ultrafast spin-polarized excitation in
a normal metal are studied theoretically using a wave-diffusion theory. It is
shown analytically how this macroscopic approach correctly describes the
ballistic and diffusive properties of spin and charge transport, but also
applies to the in... | 1111.4780v1 |
2016-06-05 | Spin current contribution in the spectrum of collective excitations of degenerate partially polarized spin-1/2 fermions at separate dynamics of spin-up and spin-down fermions | The spectrum of collective excitations of degenerate partially polarized
spin-1/2 fermions is considered. The spin-up fermions and the spin-down
fermions are considered as different fluids. Corresponding two-fluid
hydrodynamics consistent with a non-linear Pauli equation is suggested. An
equation of state for the spin ... | 1606.01562v2 |
2019-11-13 | Tailoring spin wave channels in a reconfigurable artificial spin ice | Artificial spin ices are ensembles of geometrically-arranged, interacting
nanomagnets which have shown promising potential for the realization of
reconfigurable magnonic crystals. Such systems allow for the manipulation of
spin waves on the nanoscale and their potential use as information carriers.
However, there are p... | 1911.05354v4 |
2020-02-13 | Dynamical spin susceptibility of spin-valley half-metal | A few years ago we predicted theoretically that in systems with nesting of
the Fermi surface the spin-valley half-metal has lower energy than the spin
density wave state. In this paper we suggest a possible way to distinguish
these phases experimentally. We calculate dynamical spin susceptibility tensor
for both states... | 2002.05504v1 |
2021-03-14 | Gapless spin liquid and pair density wave of the Hubbard model on three-leg triangular cylinders | We study the ground state properties of the Hubbard model on three-leg
triangular cylinders using large-scale density-matrix renormalization group
simulations. At half-filling, we identify an intermediate gapless spin liquid
phase between a metallic phase at weak coupling and Mott insulating dimer phase
at strong inter... | 2103.07998v1 |
2012-07-26 | Detecting binary neutron star systems with spin in advanced gravitational-wave detectors | The detection of gravitational waves from binary neutron stars is a major
goal of the gravitational-wave observatories Advanced LIGO and Advanced Virgo.
Previous searches for binary neutron stars with LIGO and Virgo neglected the
component stars' angular momentum (spin). We demonstrate that neglecting spin
in matched-f... | 1207.6406v2 |
2018-04-22 | Spontaneous spinning of a rattleback placed on vibrating platform | The spontaneous spinning of a rattleback placed on a vibrating platform is
investigated. The rattleback is a toy with some curious properties. When placed
on a surface with reasonable friction, the rattleback has a preferred direction
of spin. If rotated anti to it, longitudinal vibrations are set up and spin
direction... | 1804.08163v1 |
2010-06-18 | Corotational Instability, Magnetic Resonances and Global Inertial-Acoustic Oscillations in Magnetized Black-Hole Accretion Discs | Low-order, non-axisymmetric p-modes (also referred as inertial-acoustic
modes) trapped in the inner-most region of hydrodynamic accretion discs around
black holes, are plausible candidates for high-frequency quasi-periodic
oscillations (QPOs) observed in a number of accreting black-hole systems. These
modes are subject... | 1006.3763v3 |
2005-11-02 | Effects of strain, electric, and magnetic fields on lateral electron spin transport in semiconductor epilayers | We construct a spin-drift-diffusion model to describe spin-polarized electron
transport in zincblende semiconductors in the presence of magnetic fields,
electric fields, and off-diagonal strain. We present predictions of the model
for geometries that correspond to optical spin injection from the absorption of
circularl... | 0511038v1 |
2011-07-06 | Addressing the spin question in gravitational-wave searches: Waveform templates for inspiralling compact binaries with nonprecessing spins | This paper presents a post-Newtonian (PN) template family of gravitational
waveforms from inspiralling compact binaries with non-precessing spins, where
the spin effects are described by a single "reduced-spin" parameter. This
template family, which reparametrizes all the spin-dependent PN terms in terms
of the leading... | 1107.1267v2 |
2018-11-06 | Spin of LIGO/VIRGO merging black holes as the result of binary evolution | Recently discovered bursts of gravitational waves provide a good opportunity
to verify the current view on the evolution of close binary stars. Modern
population synthesis computer programs help to study this evolution from two
main sequence stars up to the formation of compact remnants. To calculate the
evolution of p... | 1811.02294v1 |
2012-11-05 | Class of variational ansaetze for the "spin-incoherent" ground-state of a Luttinger liquid coupled to a spin bath | Interacting one-dimensional electron systems are generally referred to as
"Luttinger liquids", after the effective low-energy theory in which spin and
charge behave as separate degrees of freedom with independent energy scales.
The "spin-incoherent Luttinger liquid" describes a finite-temperature regime
that is realize... | 1211.0982v1 |
2017-09-20 | Spin-rotation mode in a quantum Hall ferromagnet | A spin-rotation mode emerging in a quantum Hall ferromagnet due to laser
pulse excitation is studied. This state, macroscopically representing a
rotation of the entire electron spin-system to a certain angle, is not
microscopically equivalent to a coherent turn of all spins as a single-whole
and is presented in the for... | 1709.06811v2 |
2013-10-10 | Spin entanglement and nonlocality of multifermion systems | Spin density matrices of the system, containing arbitrary even number N of
indistinguishable fermions with spin S = 1/2, described by antisymmetric wave
function, have been calculated. The indistinguishability and the Pauli
principles are proved to determine uniquely spin states, spin correlations and
entanglement of f... | 1310.2863v3 |
2018-01-29 | Isoscalar and Isovector spin response in $sd-$ shell nuclei | The spin magnetic dipole transitions and the neutron-proton spin-spin
correlations in $sd-$shell even-even nuclei with $N=Z$ are investigated using
shell model wave functions taking into accout enhanced isoscalar (IS)
spin-triplet pairing as well as the effective spin operators. It was shown that
the IS pairing and the... | 1801.10039v1 |
2018-11-23 | Self-stabilizing exchange-mediated spin transport | Long-range spin transport in magnetic systems can be achieved by means of
exchange-mediated spin textures with robust topological winding -- a phenomenon
referred to as spin superfluidity. Its experimental signatures have been
discussed in antiferromagnets which are nearly free of dipolar interaction.
However, in ferro... | 1811.09369v2 |
2000-06-20 | Microscopic Theory of Dipole-Exchange Spin Waves in Ferromagnetic Films: Linear and Nonlinear Processes | The linear and nonlinear processes in ferromagnetic films at low temperatures
T<< Tc are studied in a microscopic theory. Both the long-range magnetic
dipole-dipole and the Heisenberg exchange interactions to nearest and
next-nearest neighbors are included. The results obtained for the linearized
spin-wave spectrum are... | 0006308v1 |
2000-06-29 | Coexistence of charge density waves, bond order waves and spin density waves in quasi-one dimensional charge transfer salts | Charge, spin, as well as lattice instabilities are investigated in isolated
or weakly coupled chains of correlated electrons at quarter-filling. Our
analysis is based on extended Hubbard models including nearest neighbor
repulsion and Peierls coupling to lattice degrees of freedom. While treating
the electronic quantum... | 0006460v2 |
2006-06-09 | Spin wave dynamics and the determination of intrinsic Gilbert damping in locally-excited Permalloy thin films | Time-resolved scanning Kerr effect microscopy has been used to study
magnetization dynamics in Permalloy thin films excited by transient magnetic
pulses generated by a micrometer-scale transmission line structure. The results
are consistent with magnetostatic spin wave theory and are supported by
micromagnetic simulati... | 0606235v3 |
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