publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
|---|---|---|---|
2003-09-24 | Orbital Wave and its Observation in Orbital Ordered Titanates and Vanadates | We present a theory of the collective orbital excitation termed orbital wave
in perovskite titanates and vanadates with the triply degenerate $t_{2g}$
orbitals. The dispersion relations of the orbital waves for the orbital ordered
LaVO$_3$, YVO$_3$ and YTiO$_3$ are examined in the effective spin-orbital
coupled Hamilto... | 0309538v2 |
2005-03-14 | Surface spin waves in superconducting and insulating ferromagnets | Surface magnetization waves are studied on a semi-infinite magnetic medium in
the perpendicular geometry. Both superconducting and insulating ferromagnets
are considered. Exchange and dipole energies are taken into account, as well as
retardation effects. At large wave vectors, the spectrum for a superconductor
and ins... | 0503340v1 |
1999-06-07 | Gravitational waves and massless particle fields | These notes address the planar gravitational wave solutions of general
relativity in empty space-time, and analyze the motion of test particles in the
gravitational wave field. Next we consider related solutions of the Einstein
equations for the gravitational field accompanied by long-range wave fields of
scalar, spino... | 9906026v2 |
1993-09-17 | Generalized Relativistic Meson Wave Function | We study the most general, relativistic, constituent $q{\overline q}$ meson
wave function within a new covariant framework. We find that by including a
tensor wave function component, a pure valence quark model is now capable of
reproducing not only all static pion data ($f_\pi$, $\langle r_\pi^2 \rangle$)
but also the... | 9309284v1 |
2020-11-20 | Confined magnetoelastic waves in thin waveguides | The characteristics of confined magnetoelastic waves in nanoscale
ferromagnetic magnetostrictive waveguides have been investigated by a
combination of analytical and numerical calculations. The presence of both
magnetostriction and inverse magnetostriction leads to the coupling between
confined spin waves and elastic L... | 2011.10326v1 |
2021-01-11 | Relativistic wave--particle duality for spinors | We propose that relativistic wave--particle duality can be embodied in a
relation $\langle u^i\rangle=\bar{\psi}\gamma^i\psi/\bar{\psi}\psi$, which
determines the mean four-velocity of the fermion particle associated with a
Dirac wave function. We use the Einstein--Cartan theory of gravity with
torsion, which incorpora... | 2101.04212v1 |
2022-06-13 | Searches for Continuous-Wave Gravitational Radiation | Now that detection of gravitational wave signals from the coalescence of
extra-galactic compact binary star mergers has become nearly routine, it is
intriguing to consider other potential gravitational wave signatures. Here we
examine the prospects for discovery of continuous gravitational waves from
fast-spinning neut... | 2206.06447v2 |
2023-11-12 | $L^p$-boundedness of wave operators for fourth order Schrödinger operators with zero resonances on $\mathbb{R}^3$ | Let $H = \Delta^2 + V$ be the fourth-order Schr\"odinger operator on
$\mathbb{R}^3$ with a real-valued fast-decaying potential $V$. If zero is
neither a resonance nor an eigenvalue of $H$, it has recently been shown by
Goldberg and Green \cite{GoGr21} that the wave operators $W_\pm(H, \Delta^2)$
are bounded on $L^p(\ma... | 2311.06763v1 |
1998-04-14 | Resonant production of gamma rays in jolted cold neutron stars | Acoustic shock waves passing through colliding cold neutron stars can cause
repetitive superconducting phase transitions in which the proton condensate
relaxes to its equilibrium value via coherent oscillations. As a result, a
resonant non-thermal production of gamma rays in the MeV energy range with
power up to 10^(52... | 9804134v1 |
2007-01-04 | Solar Resonant Diffusion Waves as a Driver of Terrestrial Climate Change | A theory is described based on resonant thermal diffusion waves in the sun
that appears to explain many details of the paleotemperature record for the
last 5.3 million years. These include the observed periodicities, the relative
strengths of each observed cycle, and the sudden emergence in time for the 100
thousand ye... | 0701117v1 |
1999-03-10 | Effects of resonant tunneling in electromagnetic wave propagation through a polariton gap | We consider tunneling of electromagnetic waves through a polariton band gap
of a 1-D chain of atoms. We analytically show that a defect embedded in the
structure gives rise to the resonance transmission at the frequency of a local
polariton state associated with the defect. Numerical Monte-Carlo simulations
are used to... | 9903172v1 |
2000-09-11 | First experimental evidence of one-dimensional plasma modes in superconducting thin wires | We have studied niobium superconducting thin wires deposited onto a
SrTiO$_{3}$ substrate. By measuring the reflection coefficient of the wires,
resonances are observed in the superconducting state in the 130 MHz to 4 GHz
range. They are interpreted as standing wave resonances of one-dimensional
plasma modes propagatin... | 0009146v1 |
2005-07-14 | Modeling of Isotropic Backward-Wave Materials Composed of Resonant Spheres | A possibility to realize isotropic artificial backward-wave materials is
theoretically analyzed. An improved mixing rule for the effective permittivity
of a composite material consisting of two sets of resonant dielectric spheres
in a homogeneous background is presented. The equations are validated using the
Mie theory... | 0507324v1 |
2006-05-26 | Elastic Light Scattering by Semiconductor Quantum Dots | Elastic light scattering by low-dimensional semiconductor objects is
investigated theoretically. The differential cross section of resonant light
scattering on excitons in quantum dots is calculated. The polarization and
angular distribution of scattered light do not depend on the quantum-dot form,
sizes and potential ... | 0605653v1 |
1999-05-13 | Kinetic description of particle interaction with a gravitational wave | The interaction of charged particles, moving in a uniform magnetic field,
with a plane-polarized gravitational wave is considered using the
Fokker-Planck- Kolmogorov (FPK) approach. By using a stochasticity criterion,
we determine the exact locations in phase space, where resonance overlapping
occurs. We investigate th... | 9905044v1 |
2005-12-11 | Challenges in Signal Analysis of Resonant-Mass Gravitational Wave Detectors | An overview of the main points related to data analysis in resonant-mass
gravitational wave detectors will be presented. Recent developments on the data
analysis system for the Brazilian detector SCHENBERG will be emphasized. | 0512063v1 |
2006-08-23 | On the Sensitivity of a Hollow Sphere as a Multi-modal Resonant Gravitational Wave Detector | We present a numerical analysis to simulate the response of a spherical
resonant gravitational wave detector and to compute its sensitivity. Under the
assump- tion of optimal filtering, we work out the sensitivity curve for a
sphere first taking into account only a single transducer, and then using a
coherent analysis ... | 0608106v2 |
1999-05-01 | Natural parity resonances in the etha pi+ pi- and omega omega | Results of the ethapi+pi- and omegaomega final state partial wave
analysis(PWA) are presented. The mass-independent and the mass-dependent PWA
were performed. The ethapi+pi- system PWA results in the observation of the
resonances in the JPC=1--,3--,2++ and 4++ waves. The results of the omegaomega
system PWA confirms th... | 9905001v1 |
2001-01-05 | Instabilities in neutrino-plasma density waves | One examines the interaction and possible resonances between supernova
neutrinos and electron plasma waves. The neutrino phase space distribution and
its boundary regions are analyzed in detail. It is shown that the boundary
regions are too wide to produce non-linear resonant effects. The growth or
damping rates induce... | 0101054v2 |
2004-12-21 | A Rich Example of Geometrically Induced Nonlinearity: From Rotobreathers and Kinks to Moving Localized Modes and Resonant Energy Transfer | We present an experimentally realizable, simple mechanical system with linear
interactions whose geometric nature leads to nontrivial, nonlinear dynamical
equations. The equations of motion are derived and their ground state
structures are analyzed. Selective ``static'' features of the model are
examined in the context... | 0412051v1 |
2006-04-06 | A reduction of the resonant three-wave interaction to the generic sixth Painleve' equation | Among the reductions of the resonant three-wave interaction system to
six-dimensional differential systems, one of them has been specifically
mentioned as being linked to the generic sixth Painleve' equation P6. We derive
this link explicitly, and we establish the connection to a three-degree of
freedom Hamiltonian pre... | 0604011v1 |
2003-06-20 | Negative Parity N* Resonances in an Extended GBE | In this paper, we calculate the masses and mixing angles of L=1 negative
parity N* resonances in an extended GBE (Goldstone-boson-exchange model) with
harmonic-oscillator wave functions. By using those mixing angles, we get their
photoproduction amplitudes, and compare them with experimental data and the
results of OPE... | 0306055v1 |
2006-08-30 | Phenomenological hadron form factors: shape and relativity | The use of relativistic quark models with simple parametric wave functions
for the understanding of the electromagnetic structure of nucleons together
with their electromagnetic transition to resonances is discussed. The
implications of relativity in the different ways it can be implemented in a
simple model are studie... | 0608076v1 |
1998-08-19 | Diffractive effects in singly-resonant continuous-wave parametric oscillators | This paper presents a detailed numerical study of the effect of focusing on
the conversion efficiency of low-loss singly-resonant parametric oscillators
with collinear focusing of pump and signal. Results are given for the maximal
pump depletion and for pump power levels required for various amounts of
depletion, as fu... | 9808026v1 |
2000-04-11 | Theory of acoustic analog of magneto-optic Kerr effect under magnon-phonon resonance | Theory of the acoustic analog of the polar Kerr effect is developed for an
inclined incidence of the p-type wave on the interface between isotropic
non-magnetic medium and ferromagnetic cubic crystal. Magnetic field dependences
of ellipticity and rotation of the polarization plane of the reflected wave
under magnon-pho... | 0004017v1 |
2002-11-07 | Advanced configuration of gravitational-wave interferometer on the base of "sensitive mode" in "white-light cavity" | A novel conception of "sensitive mode" (SM) is proposed to apply in
gravitational-wave advanced interferometer configuration. The SM is resonant
oscillation of electromagnetic field in "white-light cavity", where the
resonance line is broadened without decreasing cavity quality. The frequency of
the SM is greatly susce... | 0211032v1 |
2003-01-31 | Bessel-Gauss beam optical resonator | In a simple picture, a Bessel beam is viewed as a transverse standing wave
formed in the interference region between incoming and outgoing conical waves.
Based on this interpretation we propose an optical resonator that supports
modes that are approximations to Bessel-Gauss beams. The Fox-Li algorithm in
two transverse... | 0301082v2 |
2003-05-12 | Local Solutions for Generic Multidimensional Resonant Wave Conversion | In more than one spatial dimension, resonant linear conversion from one wave
type to another can have a more complex geometry than the familiar 'avoided
crossing' of one-dimensional problems. In previous work we have shown that
helical ray shapes are generic in a mathematical sense. Here we briefly
describe how the loc... | 0305047v1 |
2004-08-31 | Resonant modes in triangular dielectric cavities | The resonant optical modes of a high permittivity dielectric prism with an
equilateral triangular cross section are discussed. Eigenmode solutions of the
scalar Helmholtz equation with Dirichlet boundary conditions, appropriate to a
conducting boundary, are applied for this purpose. The particular plane wave
components... | 0409002v1 |
2004-09-24 | First observation of generation in the backward wave oscillator with a "grid" diffraction grating and lasing of the volume FEL with a "grid" volume resonator | First observation of generation in the backward wave oscillator with a "grid"
diffraction grating and lasing of the volume FEL with a "grid" volume resonator
that is formed by a perodic set of metallic threads inside a rectangular
waveguide is considered. | 0409125v1 |
2007-06-04 | Decay and non-decay of the local energy for the wave equation in the De Sitter - Schwarzschild metric | We describe an expansion of the solution of the wave equation in the De
Sitter - Schwarzschild metric in terms of resonances. The main term in the
expansion is due to a zero resonance. The error term decays polynomially if we
permit a logarithmic derivative loss in the angular directions and
exponentially if we permit ... | 0706.0350v1 |
2007-07-03 | Detuned Twin-Signal-Recycling for ultra-high precision interferometers | We propose a new interferometer technique for high precision phase
measurements such as those in gravitational wave detection. The technique
utilizes a pair of optically coupled resonators that provides identical
resonance conditions for the upper as well the lower phase modulation signal
sidebands. This symmetry signi... | 0707.0413v1 |
2007-08-09 | Polariton amplification in a multiple-quantum-well resonant photonic crystal | Based on a microscopic many-particle theory we study the amplification of
polaritons in a multiple-quantum-well resonant photonic crystal. For the
Bragg-spaced multiple quantum wells under investigation we predict that in a
typical pump-probe setup four-wave mixing processes can lead to an unstable
energy transfer from... | 0708.1300v1 |
2008-07-09 | Resonance-like Goss-Haenchen Shift induced by nano-metal films | The influence of nano-metal films on the Goos-Haenchen shift (GHS) is
investigated. The films deposited at the total reflecting surface of a perspex
prism/air have a sheet resistance varying between Z = 25 and 3 000 Ohm. A
resonance-like enhancement of the shift and of the absorption is found for TE
polarized waves, wh... | 0807.1537v1 |
2008-07-15 | alpha particle momentum distributions from 12C decaying resonances | The computed $\alpha$ particle momentum distributions from the decay of
low-lying $^{12}$C resonances are shown. The wave function of the decaying
fragments is computed by means of the complex scaled hyperspherical adiabatic
expansion method. The large-distance part of the wave functions is crucial and
has to be accura... | 0807.2375v1 |
2009-07-20 | Qubit-oscillator dynamics in the dispersive regime: analytical theory beyond rotating-wave approximation | We generalize the dispersive theory of the Jaynes-Cummings model beyond the
frequently employed rotating-wave approximation (RWA) in the coupling between
the two-level system and the resonator. For a detuning sufficiently larger than
the qubit-oscillator coupling, we diagonalize the non-RWA Hamiltonian and
discuss the ... | 0907.3516v1 |
2009-08-03 | Opto-mechanics with surface acoustic wave whispering gallery modes | A surface acoustic wave (SAW) creates its own high-Q ultra-small volume
whispering gallery modes (WGMs), different from usual bulk acoustic WGMs, in an
optical dielectric WGM resonator. We show that it is possible to realize an
externally controllable, efficient triply-resonant opto-mechanical interaction
between two o... | 0908.0306v1 |
2009-11-01 | Above-Barrier Reflection of Cold Atoms by Resonant Laser Light within the Gross-Pitaevskii Approximation | Above-barrier reflection of cold alkali atoms by resonant laser light was
considered analytically within the Gross-Pitaevskii approximation. Correction
for the reflection coefficient because of a weak nonlinearity of the stationary
Schroedinger equation has been derived using multiscale analysis as a form of
perturbati... | 0911.0156v1 |
2009-12-15 | Resonant trapping in the transport of a matter-wave soliton through a quantum well | We theoretically investigate the scattering of bright solitons in a
Bose-Einstein condensate on narrow attractive potential wells. Reflection,
transmission and trapping of an incident soliton are predicted to occur with
remarkably abrupt transitions upon varying the potential depth. Numerical
simulations of the nonline... | 0912.3019v1 |
2010-01-02 | Triply-resonant Optical Parametric Oscillator by Four-wave Mixing with Rubidium Vapor inside an Optical Cavity | We present an experimental demonstration of simultaneous above-threshold
oscillations of the Stokes and anti-Stokes fields together with the single
pumping beam with rubidium atoms inside an optical standing-wave cavity. The
triple resonant conditions can be achieved easily by making use of the large
dispersions due to... | 1001.0291v1 |
2010-03-02 | Resonance Scattering of Waves in Chaotic Systems | This is a brief overview of RMT applications to quantum or wave chaotic
resonance scattering, focusing mainly on theoretical results obtained via
non-perturbative methods starting from mid-nineties. | 1003.0702v1 |
2010-03-23 | Direct observation of mode-coupling instability in two-dimensional plasma crystals | Dedicated experiments on melting of 2D plasma crystals were carried out. The
melting was always accompanied by spontaneous growth of the particle kinetic
energy, suggesting a universal plasma-driven mechanism underlying the process.
By measuring three principal dust-lattice (DL) wave modes simultaneously, it is
unambig... | 1003.4479v1 |
2010-04-03 | Dynamics of point Josephson junctions in a microstrip line | We analyze a new long wave model describing the electrodynamics of an array
of point Josephson junctions in a superconducting cavity. It consists in a wave
equation with Dirac delta function sine nonlinearities. We introduce an adapted
spectral problem whose spectrum gives the resonances in the current-voltage
characte... | 1004.0409v1 |
2010-05-06 | Local diffusion theory of localized waves in open media | We report a first-principles study of static transport of localized waves in
quasi-one-dimensional open media. We found that such transport, dominated by
disorder-induced resonant transmissions, displays novel diffusive behavior. Our
analytical predictions are entirely confirmed by numerical simulations. We
showed that... | 1005.0951v2 |
2010-12-15 | Nonlinear Bloch modes, optical switching and Bragg solitons in tightly coupled micro-ring resonator chains | We study nonlinear wave phenomena in coupled ring resonator optical
waveguides in the tight coupling regime. A discrete model for the system
dynamics is put forward and its steady state nonlinear Bloch modes are derived.
The switching behavior of the transmission system is addressed numerically and
the results are expl... | 1012.3286v2 |
2011-06-02 | Self-injection-locked magnetron as an active ring resonator side coupled to a waveguide with a delayed feedback loop | The theoretical analysis and numerical simulations of the magnetron operation
with a feedback loop were performed assuming that the delay of the
electromagnetic wave propagating in the loop is constant whereas the phase of
the complex feedback reflection coefficient is varied. Results of simulations
showed that by a pr... | 1106.0389v1 |
2011-11-14 | Impedance of the free surface of liquid electrolytes | A possibility for the observation of so-called structure resonances (SR) in
electrolytes arising due to relative motion of the cluster charged nucleus and
its solvation shell is demonstrated. The discussed method considers the
resonant contribution of the SR to the frequency dependence of the reflection
(transmission) ... | 1111.3318v1 |
2011-12-12 | Resonance in a driven two-level system: analytical results without the rotating wave approximation | We consider the problem of two-level system dynamics induced by the
time-dependent field B={a(t)cos\omega t,a(t)sin\omega t,\omega_0}, with a(t)
\sim cn(\nu t,k). The problem is exactly analytically solvable and we propose
the scheme for constructing the solutions. For all field configurations the
resonance conditions ... | 1112.2564v1 |
2012-06-15 | Tunable graphene-based polarizer | It is shown that an attenuated total reflection structure containing a
graphene layer can operate as a tunable polarizer of the electromagnetic
radiation. The polarization angle is controlled by adjusting the voltage
applied to graphene via external gate. The mechanism is based on the resonant
coupling of $p-$polarized... | 1206.3592v1 |
2013-06-04 | Metamaterial Loadings for Waveguide Miniaturization | We show that a rectangular metallic waveguide loaded with metamaterial
elements consisting of electric-field coupled (ELC) resonators placed at the
side walls can operate well below the cutoff frequency of the respective
unloaded waveguide. The dispersion diagrams indicate that propagating modes in
ELC-loaded waveguide... | 1306.0928v1 |
2013-07-25 | Optical frequency comb generation from aluminum nitride micro-ring resonator | Aluminum nitride is an appealing nonlinear optical material for on-chip
wavelength conversion. Here we report optical frequency comb generation from
high quality factor aluminum nitride micro-ring resonators integrated on
silicon substrates. By engineering the waveguide structure to achieve near-zero
dispersion at tele... | 1307.6761v1 |
2013-08-10 | Dipole-induced localized plasmon modes and resonant surface plasmon scattering | A metal film supports the continuum of propagating surface plasmon waves. The
interaction of these waves with a dipole (nanoparticle) positioned some
distance from the surface of the film can produce well defined localized
plasmon modes whose frequency nonetheless resides inside the continuum. This
leads to the resonan... | 1308.2339v2 |
2014-01-07 | Switching Reciprocity On and Off in a Magneto-Optical X-Ray Scattering Experiment Using Nuclear Resonance of 57Fe Foils | Reciprocity is when the scattering amplitude of wave propagation satisfies a
symmetry property, connecting a scattering process with an appropriate reversed
one. We report on an experiment using nuclear resonance scattering of
synchrotron radiation, which demonstrates that magneto-optical materials do not
necessarily v... | 1401.1348v1 |
2014-03-30 | Evidence of giant oscillator strength in the exciton dephasing of CdSe nanoplatelets measured by resonant four-wave mixing | We measured the intrinsic ground-state exciton dephasing and population
dynamics in colloidal quasi two-dimensional (2D) CdSe nanoplatelets at low
temperature (5-50K) using transient resonant four-wave mixing in heterodyne
detection. Our results indicate that below 20K the exciton dephasing is
lifetime limited, with th... | 1403.7798v1 |
2015-02-20 | Spontaneous four-wave mixing in lossy microring resonators | We develop a general Hamiltonian treatement of spontaneous four-wave mixing
in a microring resonator side-coupled to a channel waveguide. The effect of
scattering losses in the ring is included, as well as parasitic nonlinear
effects including self- and cross-phase modulation. A procedure for computing
the output of su... | 1502.05900v2 |
2015-04-02 | Steering in-plane shear waves with inertial resonators in platonic crystals | Numerical simulations shed light on control of shear elastic wave propagation
in plates structured with inertial resonators. The structural element is
composed of a heavy core connected to the main freestanding plate through tiny
ligaments. It is shown that such a configuration exhibits a complete band gap
in the low f... | 1504.00487v1 |
2015-04-20 | Nonlinear sub-cyclotron resonance as a formation mechanism for gaps in banded chorus | An interesting characteristic of magnetospheric chorus is the presence of a
frequency gap at $\omega \simeq 0.5\Omega_e$, where $\Omega_e$ is the electron
cyclotron angular frequency. Recent chorus observations sometimes show
additional gaps near $0.3\Omega_e$ and $0.6\Omega_e$. Here we present a novel
nonlinear mechan... | 1504.05243v1 |
2016-02-12 | Triply-resonant Continuous Wave Parametric Source with a Microwatt Pump | We demonstrate a nanophotonic parametric light source with a record high
normalized conversion efficiency of $3\times 10^6\, W^{-2}$, owing to
resonantly enhanced four wave mixing in coupled high-Q photonic crystal
resonators. The rate of spontaneously emitted photons reaches 14 MHz. | 1602.04833v1 |
2016-02-18 | Emulation of Fabry-Perot and Bragg resonators with temporal optical solitons | The scattering of weak dispersive waves (DW) on several equally spaced
temporal solitons is studied. It is shown by systematic numerical simulations
that the reflection of the DWs from the soliton trains strongly depends on the
distance between the solitons. The dependence of the reflection and
transmission coefficient... | 1602.05896v1 |
2016-04-11 | Design study of a beta=0.09 high current superconducting half wave resonator | There's presently a growing demand for high current proton and deuteron
linear accelerators based on superconducting technology to better support
various fields of science. A \b{eta}=0.09 162.5 MHz high current
superconducting half wave resonator (HWR) has been designed at Peking
University to accelerate 100 mA proton ... | 1604.02799v1 |
2016-07-26 | Ultra-high Q Acoustic Resonance in Superfluid 4He | We report the measurement of the acoustic quality factor of a gram-scale,
kilo-hertz frequency superfluid resonator, detected through the parametric
coupling to a superconducting niobium microwave cavity. For temperature between
400mK and 50mK, we observe a $T^{-4}$ temperature dependence of the quality
factor, consist... | 1607.07902v1 |
2017-08-24 | Excitation of coupled phononic frequency combs via two-mode parametric three-wave mixing | This paper builds on the recent demonstration of three-wave mixing based
phononic frequency comb. Here, in this process, an intrinsic coupling between
the drive and resonant frequency leads to a frequency comb of spacing
corresponding to the separation between drive and resonant frequency. Now, in
this paper, we experi... | 1708.07563v2 |
2017-11-13 | Ultra-low power nonlinear optics in a high Q CMOS compatible integrated micro-ring resonator | We demonstrate efficient, low power, continuous-wave four-wave mixing in the
C-band, using a high index doped silica glass micro ring resonator having a
Q-factor of 1.2 million. A record high conversion efficiency for this kind of
device is achieved over a bandwidth of 20nm. We show theoretically that the
characteristi... | 1711.04400v1 |
2017-11-13 | JOZSO, a renewed version of the computer code GAMOW for calculating broad neutron resonances in phenomenological nuclear potentials | A renewed version of the computer code GAMOW ~\cite{[Ve82]} is given in which
the difficulties in calculating broad neutron resonances are amended. New types
of phenomenological neutron potentials with strict finite range are built in.
Landscape of the S-matrix can be generated on a given domain of the complex
wave num... | 1711.04619v2 |
2017-11-29 | Tailored Raman-resonant four-wave-mixing process | Nonlinear optical processes are strongly dominated by phase relationships
among electromagnetic fields that are relevant to its optical process. In this
paper, we theoretically and experimentally show, as a typical example, that in
a Raman-resonant four-wave-mixing process, the first anti-Stokes and Stokes
generations ... | 1711.10772v1 |
2018-01-08 | Radiation of Channeled Positrons in Ultrasonic Wave | In the classical approximation, we examine the problem of radiation by
channeled positrons in the field of a longitudinal ultrasonic wave when the
condition of parametric resonance is satisfied. We show that in the case of
planar channeling the intensity of the spectral distribution of the radiation
can be several time... | 1801.10222v2 |
2018-03-15 | Lineshape-asymmetry elimination in weak atomic transitions driven by an intense standing wave field | Owing to the ac-Stark effect, the lineshape of a weak optical transition in
an atomic beam can become significantly distorted, when driven by an intense
standing wave field. We use an Yb atomic beam to study the lineshape of the 6s2
1S0 -> 5d6s 3D1 transition, which is excited with light circulating in a
Fabry-Perot re... | 1803.05884v2 |
2018-06-21 | Stability of Periodic Travelling Wave Solutions to the Kawahara Equation | We analyse the stability of periodic, travelling-wave solutions to the
Kawahara equation and some of its generalizations. We determine the parameter
regime for which these solutions can exhibit resonance. By examining
perturbations of small-amplitude solutions, we show that generalised resonance
is a mechanism for high... | 1806.08445v1 |
2017-05-24 | Influence of optical nonlinearities on plasma waves in graphene | A theory of the nonlinear plasma waves in graphene is developed in the
nonperturbative regime. The influence of strong electric fields on the position
and linewidth of plasma resonances in the far-infrared transmission
experiments, as well as on the wavelength and the propagation length in the
scanning near-field optic... | 1705.08999v2 |
2012-09-19 | Continuous-wave backward frequency doubling in periodically poled lithium niobate | We report on backward second-harmonic-generation in bulk periodically poled
congruent lithium niobate with a 3.2 microns period. A tunable continuous-wave
Ti:sapphire laser allowed us exciting two resonant quasi-phase-matching orders
in the backward configuration. The resonances were also resolved by temperature
tuning... | 1209.4288v1 |
2014-06-09 | Resonantly phase-matched Josephson junction traveling wave parametric amplifier | We develop a technique to overcome phase-mismatch in Josephson-junction
traveling wave parametric amplifiers in order to achieve high gain over a broad
bandwidth. Using "resonant phase matching," we design a compact superconducting
device consisting of a transmission line with subwavelength resonant inclusions
that sim... | 1406.2346v1 |
2019-02-04 | Metasurfaces with Interleaved Electric and Magnetic Resonances for Broadband Arbitrary Group Delay in Reflection | Metasurfaces impart phase discontinuities on impinging electromagnetic waves
that are typically limited to 0-2$\pi$. Here, we show that they can break free
from this limitation and supply arbitrarily-large phase modulation over
ultra-wide bandwidths. This is achieved by implementing multiple,
properly-arranged resonanc... | 1902.01121v1 |
2016-03-02 | Amplitude analysis of $\bar{K}N$ scattering | We present the results of a coupled-channel model for $\bar{K}N$ scattering
in the resonance region. The model fulfills unitarity, has the correct
analytical properties for the amplitudes and the partial waves have the right
threshold behavior. The parameters of the model have been established by
fitting single-energy ... | 1603.00868v1 |
2016-03-04 | Optical realization of the dissipative quantum oscillator | An optical realization of the damped quantum oscillator, based on transverse
light dynamics in an optical resonator with slowly-moving mirrors, is
theoretically suggested. The optical resonator setting provides a simple
implementation of the time-dependent Caldirola-Kanai Hamiltonian of the
dissipative quantum oscillat... | 1603.01364v1 |
2016-03-18 | Modeling of Self-Pumped Singly Resonant Optical Parametric Oscillator | A model of the steady-state operating, self-pumped singly resonant optical
parametric oscillator (SPSRO) has been developed. The characteristics of quasi
three-level laser gain medium pumped longitudinally have been taken into
account. The characteristics of standing wave cavity, reabsorption losses,
focusing Gaussian ... | 1603.05840v1 |
2016-12-12 | Spontaneous emission in a quantum system driven by the resonant field beyond the rotating wave approximation | Quasi-stationary states of the quantum system in the driving resonant field
are considered without rotating wave approximation. Conditions under which the
spontaneous emission could be suppressed in this system are investigated in the
special case when the frequency of the driving field is essentially less than
the fre... | 1612.03688v1 |
2017-02-09 | A waveguide cavity resonator source of squeezing | We present the generation of continuous-wave optical squeezing from a
titanium-indiffused lithium niobate waveguide resonator. We directly measure
2.9\pm 0.1 dB of single-mode squeezing, which equates to a produced level of
4.9\pm 0.1 dB after accounting for detection losses. This device showcases the
current capabilit... | 1702.02855v1 |
2019-03-14 | Scattering for the quadratic nonlinear Schrödinger system in $\mathbb{R}^5$ without mass-resonance condition | We consider the quadratic nonlinear Schr\"{o}dinger system (NLS system)
\begin{align*}\begin{cases} i\partial_t u + \Delta u = v \overline{u}, \\
i\partial_t v+\kappa \Delta v = u^2, \end{cases} \text{ on } I \times
\mathbb{R}^5, \end{align*} where $\kappa>0$. The scattering below the standing
wave solutions for NLS sy... | 1903.05880v1 |
2019-05-25 | Generating frequency-bin qubits via spontaneous four-wave mixing in a photonic molecule | A scheme for heralded generation of frequency-bin photonic qubits via
spontaneous four-wave mixing in a system of coupled microring resonators
(photonic molecule) is developed so that the qubit state is fully controlled by
the frequency amplitude of the pump field. It is shown that coupling parameters
of the photonic m... | 1905.10571v2 |
2020-03-01 | Parametric study of the seismic response of a hill or mountain | The problem of the response of a cylindrical protuberance of rectangular
shape to a SH seismic plane wave is studied in parametric manner so as to
provide answers to the questions: (i) where and how should one measure this
response, (ii) is the normal-incidence response a valid indication of response
at other incident ... | 2003.00461v1 |
2020-11-06 | Scalar Differential Equations of Thin Film Bulk Acoustic Wave Resonators with Surface Acoustic Impedance for Sensor Application | We generalize the two-dimensional scalar differential equations for the
thickness-extensional operating modes of thin film bulk acoustic wave
resonators (FBARs) to include the effects of surface impedance so that the
equations can be used to model sensors based on FBARs. A mass sensor is
analyzed as an example to show ... | 2011.03251v1 |
2019-07-30 | Electromagnetic Grazing Anomaly: Energy Flux Resonance Behaviour and Brewster Angle Analogy | The diffraction of electromagnetic waves at the surface periodic structures
accompanied by strong anomalous effects in different diffraction orders is
considered in great detail for high-contrast interfaces. We restrict our
discussion to the TM polarization of the incident wave (the magnetic field is
orthogonal to the ... | 1907.13015v1 |
2019-10-02 | Resolvent estimates, wave decay, and resonance-free regions for star-shaped waveguides | Using coordinates $(x,y)\in \mathbb R\times \mathbb R^{d-1}$, we introduce
the notion that an unbounded domain in $\mathbb R^d$ is star shaped with
respect to $x=\pm \infty$. For such domains, we prove estimates on the
resolvent of the Dirichlet Laplacian near the continuous spectrum. When the
domain has infinite cylin... | 1910.01038v2 |
2020-06-10 | Edge modes in active systems of subwavelength resonators | Wave scattering structures with amplification and dissipation can be modelled
by non-Hermitian systems, opening new ways to control waves at small length
scales. In this work, we study the phenomenon of topologically protected edge
states in acoustic systems with gain and loss. We demonstrate that localized
edge modes ... | 2006.05719v1 |
2020-12-11 | Nonresonant Diffusion in Alpha Channeling | The gradient of fusion-born alpha particles that arises in a fusion reactor
can be exploited to amplify waves, which cool the alpha particles while
diffusively extracting them from the reactor. The corresponding extraction of
the resonant alpha particle charge has been suggested as a mechanism to drive
rotation. By der... | 2012.06532v1 |
2020-12-17 | Photonic Lenses with Whispering Gallery Waves at Janus Particles | We show that electric field on the plane surface of truncated sphere or
cylinders (so called Janus particles) have sharp resonances versus the depth of
removed segment of a sphere or cylinder. These resonances are related to the
excited whispering gallery waves caused by truncation. It is a new mechanism of
the field l... | 2012.09489v1 |
2020-12-22 | How Discrete Spectrum and Resonances Influence the Asymptotics of the Toda Shock Wave | We rigorously derive the long-time asymptotics of the Toda shock wave in a
middle region where the solution is asymptotically finite gap. In particular,
we describe the influence of the discrete spectrum in the spectral gap on the
shift of the phase in the theta-function representation for this solution. We
also study ... | 2012.12371v3 |
2021-05-13 | The wave trace and resonances of the magnetic Hamiltonian with singular vector potentials | We study leading order singularities of the wave trace of the Aharonov--Bohm
Hamiltonian on $\mathbf{R}^2$ with multiple solenoids under a generic
assumption that no three solenoids are collinear. Then we apply our formula to
get a lower bound of scattering resonances in a logarithmic neighborhood near
the real axis. | 2105.06542v2 |
2021-07-29 | Passive underwater acoustic barcodes using Rayleigh wave resonance | A passive underwater acoustic marker is presented and its feasibility for
underwater recognition, positioning, and navigation is proved by a numerical
method and experimental results. These markers are composed of acrylic elastic
objects designed by backscattering strong peaks associated with the subsonic
Rayleigh wave... | 2107.13860v1 |
2021-11-01 | Four-wave mixing Floquet topological soliton | We consider a topological Floquet insulator realized as a honeycomb array of
helical waveguides imprinted in weakly birefringent medium. The system accounts
for four-wave mixing occurring at a series of resonances arising due to Floquet
phase matching. Under these resonant conditions, the system sustains stable
linearl... | 2111.01293v2 |
2023-04-25 | Time periodic solutions and Nekhoroshev stability to non-linear massive Klein-Gordon equations in Anti-de Sitter | We prove the existence of time-periodic solutions to non-linear massive
Klein-Gordon equations in Anti-de Sitter as well as their orbital stability
over exponentially long times for certain values of the mass corresponding to
completely resonant spectrum. We analyse the resonant system in the Fourier
space by relying i... | 2304.12784v1 |
2023-05-22 | Standing Waves for Schrödinger Equations with Kato-Rellich potentials | We show the existence of standing waves for the nonlinear Schr\"{o}dinger
equation with Kato-Rellich type potential. We consider both resonant with the
nonlinearity satisfying one of Landesman-Lazer type or sign conditions and
non-resonant case where the linearization at infinity has zero kernel. The
approach relies on... | 2305.12877v1 |
2024-02-06 | Probing early phase coarsening in a rapidly quenched Bose gas using off-resonant matter-wave interferometry | We experimentally investigate the evolution of spatial phase correlations in
a rapidly quenched inhomogeneous Bose gas of rubidium using off-resonant
matter-wave interferometry. We measure the phase coherence length $\ell$ of the
sample and directly probe its increase during the early stage of condensate
growth before ... | 2402.03742v1 |
1997-12-03 | Resonance Averaged Photoionization Cross Sections for Astrophysical Models | We present ground state photoionization cross sections of atoms and ions
averaged over resonance structures for photoionization modeling of
astrophysical sources. The detailed cross sections calculated in the
close-coupling approximation using the R-matrix method, with resonances
delineated at thousands of energies, ar... | 9712037v1 |
2010-03-27 | Design of Optomechanical Cavities and Waveguides on a Simultaneous Bandgap Phononic-Photonic Crystal Slab | In this paper we study and design quasi-2D optomechanical crystals,
waveguides, and resonant cavities formed from patterned slabs. Two-dimensional
periodicity allows for in-plane pseudo-bandgaps in frequency where resonant
optical and mechanical excitations localized to the slab are forbidden. By
tailoring the unit cel... | 1003.5265v2 |
2011-04-14 | Resonances from meson-meson scattering in U(3) CHPT | In this work, the complete one loop calculation of meson-meson scattering
amplitudes within U(3)\otimes U(3) chiral perturbation theory with explicit
resonance states is carried out for the first time. Partial waves are
unitarized from the perturbative calculation employing a non-perturbative
approach based on the N/D ... | 1104.2849v2 |
2011-09-09 | Resonances formed by pbar-p and decaying into pizero-pizero-eta for masses 1960 to 2410 MeV | Data on pbar-b annihilation in flight into pizero-pizero-eta are presented
for nine beam momenta 600 to 1940 MeV/c. The strongest four intermediate states
are found to be f_2(1270)-eta, a_2(1320)-pi, sigma-eta and a_0(980)-pi. Partial
wave analysis is performed mainly to look for resonances formed by pbar-p and
decayin... | 1109.2086v1 |
2015-03-03 | Evolutionary outcomes for pairs of planets undergoing orbital migration and circularization: second order resonances and observed period ratios in Kepler's planetary systems | In order to study the origin of the architectures of low mass planetary
systems, we perform numerical surveys of the evolution of pairs of coplanar
planets in the mass range $(1-4)\ \rmn{M}_{\oplus}.$ These evolve for up to
$2\times10^7 \rmn{yr}$ under a range of orbital migration torques and
circularization rates assu... | 1503.00906v3 |
2016-12-13 | Omni-resonant optical micro-cavity | Optical cavities are a cornerstone of photonics. They are indispensable in
lasers, optical filters, optical combs and clocks, in quantum physics, and have
enabled the detection of gravitational waves. Cavities transmit light only at
discrete resonant frequencies, which are well-separated in micro-structures.
Despite at... | 1612.04328v1 |
2017-04-11 | Frequency Response and Resonance of Elastic Hele-Shaw Cells with Application to Mechanical Filters | We study steady-state oscillations of an elastic Hele-Shaw cell excited by
traveling pressure waves over its upper surface. The fluid within the cell is
bounded by two asymmetric elastic sheets which are connected to a rigid surface
via distributed springs and modeled by the linearized plate theory. Modal
analysis yiel... | 1704.03175v1 |
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