publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
|---|---|---|---|
2004-04-21 | Four-Wave Mixing In BEC Systems With Multiple Spin States | We calculate the four-wave mixing (FWM) in a Bose-Einstein condensate system
having multiple spin wave packets that are initially overlapping in physical
space, but have nonvanishing relative momentum that cause them to recede from
one another. Three receding condensate atom wave packets can result in
production of a f... | 0404499v1 |
2018-08-16 | Energy transfer in resonant and near-resonant internal wave triads for weakly non-uniform stratifications. Part I: Unbounded domain | In this paper, using multiple scale analysis we derive a generalized
mathematical model for amplitude evolution, and for calculating the energy
exchange in resonant and near-resonant global triads consisting of weakly
nonlinear internal gravity wave packets in weakly non-uniform density
stratifications in an unbounded ... | 1808.05591v5 |
2022-07-06 | Is the resonant wave interaction approximation consistent with the dynamics of internal wave fields? | Nonlinear interaction and breaking of internal ocean waves are responsible
for much of the interior ocean mixing, affecting ocean carbon storage and the
global overturning circulation. These interactions are also believed to dictate
the observed Garrett-Munk wave energy spectrum, which is still unexplained
after 50 yea... | 2207.02758v4 |
2021-05-25 | Line Shapes of Electric Dipole Spin Resonance in Pauli Spin Blockade | Electric dipole spin resonance (EDSR) is a commonly used tool for
manipulation and spectroscopy of quantum-dot-based spin qubits. When an EDSR
experiment is embedded in a transport setup and Pauli spin blockade is used as
means for spin-state read-out, then measured resonant responses in the leakage
current indeed carr... | 2105.12088v2 |
2015-08-20 | Origin of coda waves: earthquake source resonance | Coda in local earthquake exhibits resonance-like wave behaviour where the
coda emerges as long-duration small-amplitude vibration with selective
frequency, slow temporal decay, and uniform spatial energy distribution around
the earthquake source. Coda is thought to be the incoherent waves scattered
from random small-sc... | 1508.04873v4 |
2023-03-14 | ECMI Resonance in AKR Revisited: Hyperbolic Resonance, Harmonics, Wave-Wave Interaction | Recapitulation of the resonance condition for the fundamental and higher
electron cyclotron harmonics in the Electron Cyclotron Maser Instability (ECMI)
enables radiation below and confirms the possibility of radiation in a narrow
band above harmonics $n>1$. Near $n=1$ resonance on the confined lower X-mode
branch, amp... | 2303.07950v1 |
2004-09-11 | Andreev reflection resonant tunneling through a precessing spin | We investigate Andreev reflection (AR) resonant tunneling through a
precessing spin which is coupled to a normal metallic lead and a
superconducting lead. The formula of the AR conductance at zero temperature is
obtained as a function of chemical potential and azimuthal angle of the spin
precessing by using the nonequi... | 0409286v1 |
2005-03-19 | Correlations, spin dynamics, defects: the highly-frustrated Kagomé bilayer | The SrCr$\_{9p}$Ga$\_{12-9p}$O$\_{19}$ and
Ba$\_{2}$Sn$\_{2}$ZnGa$\_{10-7p}$Cr$\_{7p}$O$\_{22}$ compounds are two
highly-frustrated magnets possessing a quasi-two-dimensional Kagom\'{e} bilayer
of spin 3/2 chromium ions with antiferromagnetic interactions. Their magnetic
susceptibility was measured by local Nuclear Mag... | 0503496v1 |
2006-04-25 | Multiple-pulse coherence enhancement of solid state spin qubits | We describe how the spin coherence time of a localized electron spin in
solids, i.e. a solid state spin qubit, can be prolonged by applying designed
electron spin resonance pulse sequences. In particular, the spin echo decay due
to the spectral diffusion of the electron spin resonance frequency induced by
the non-Marko... | 0604577v2 |
2007-08-15 | Spin dynamics in InAs-nanowire quantum-dots coupled to a transmission line | We study theoretically electron spins in nanowire quantum dots placed inside
a transmission line resonator. Because of the spin-orbit interaction, the spins
couple to the electric component of the resonator electromagnetic field and
enable coherent manipulation, storage, and read-out of quantum information in
an all-el... | 0708.2091v1 |
2008-07-16 | Theory of electric dipole spin resonance in quantum dots: Mean field theory with Gaussian fluctuations and beyond | Very recently, the electric dipole spin resonance (EDSR) of single electrons
in quantum dots was discovered by three independent experimental groups.
Remarkably, these observations revealed three different mechanisms of EDSR:
coupling of electron spin to its momentum (spin-orbit), to the operator of its
position (inhom... | 0807.2624v1 |
2015-03-03 | Electron Spin Resonance Spectroscopy via Relaxation of Solid-State Spin Probes at the Nanoscale | Electron Spin Resonance (ESR) describes a suite of techniques for
characterising electronic systems, with applications in physics, materials
science, chemistry, and biology. However, the requirement for large electron
spin ensembles in conventional ESR techniques limits their spatial resolution.
Here we present a metho... | 1503.00830v1 |
2019-10-29 | Spin noise at electron paramagnetic resonance | We develop a microscopic theory of spin noise in solid-state systems at
electron paramagnetic resonance, when the spin dynamics is driven by static and
radio-frequency (RF) magnetic fields and the stochastic effective magnetic
field stemming from the interaction with environment. The RF field splits the
peaks in the po... | 1910.13167v1 |
2020-02-06 | Search for exotic spin-dependent interactions using polarized helium | We investigate the sensitivities of searches for exotic spin-dependent
interactions between the polarized nuclear spins of $^3$He and the particles of
unpolarized or polarized solid-state masses using the frequency method and the
resonance method. In the frequency method, the spin-dependent interactions act
as an effec... | 2002.02495v3 |
2022-10-06 | Electrically-detected single-spin resonance with Quantum Spin Hall edge states | Detection is most often the main impediment to reduce the number of spins in
paramagnetic resonance experiments. Here we propose a new route to carry out
electrically-detected spin resonance of an individual spin, placed at the edge
of a quantum spin Hall insulator (QSHI). The edges of a QSHI host a one
dimensional ele... | 2210.02917v1 |
2005-01-09 | Nonequilibrium Kondo Effect in a Quantum Dot Coupled to Ferromagnetic Leads | We study the Kondo effect in the electron transport through a quantum dot
coupled to ferromagnetic leads, using a real-time diagrammatic technique which
provides a systematic description of the nonequilibrium dynamics of a system
with strong local electron correlations. We evaluate the theory in an extension
of the `re... | 0501172v1 |
2007-12-07 | Exchange effects in elastic collisions of spin-polarized electrons with open-shell molecules with $^3Σ_g^-$ symmetry | The spin-exchange effect in spin-polarized electron collisions with
unpolarized open-shell molecules, O$_2$, B$_2$, S$_2$ and Si$_2$, has been
studied by the R-matrix method with the fixed-bond approximation. All of these
molecules have ${}^3 \Sigma_{g}^{-}$ symmetry in their ground states. Usual
integrated cross secti... | 0712.1068v1 |
2009-02-16 | Locking electron spins into magnetic resonance by electron-nuclear feedback | The main obstacle to coherent control of two-level quantum systems is their
coupling to an uncontrolled environment. For electron spins in III-V quantum
dots, the random environment is mostly given by the nuclear spins in the
quantum dot host material; they collectively act on the electron spin through
the hyperfine in... | 0902.2659v1 |
2011-10-19 | Fano resonances and electron spin transport through a two-dimensional spin-orbit-coupled quantum ring | Electron transport through a spin-orbit-coupled quantum ring is investigated
within linear response theory. We show that the finite width of the ring
results in the appearance of Fano resonances in the conductance. This turns out
to be a consequence of the spin-orbit interaction that leads to a breaking of
the parity o... | 1110.4233v1 |
2012-10-08 | Intrinsic oscillations of spin current polarization in a paramagnetic resonant tunneling diode | A spin- and time-dependent electron transport has been studied in a
paramagnetic resonant tunneling diode using the self-consistent Wigner-Poisson
method. Based on the calculated current-voltage characteristics in an external
magnetic field we have demonstrated that under a constant bias both the spin-up
and spin-down ... | 1210.2280v2 |
2013-02-15 | Spin dynamics of a Mn atom in a semiconductor quantum dot under resonant optical excitation | We analyze the spin dynamics of an individual magnetic atom (Mn) inserted in
a II-VI semiconductor quantum dot under resonant optical excitation. In
addition to standard optical pumping expected for a resonant excitation, we
show that for particular conditions of laser detuning and excitation intensity,
the spin popula... | 1302.3769v1 |
2014-10-02 | Non-Markovian dynamics of a single-mode cavity strongly coupled to an inhomogeneously broadened spin ensemble | We study the dynamics of a spin ensemble strongly coupled to a single-mode
resonator driven by external pulses. When the mean frequency of the spin
ensemble is in resonance with the cavity mode, damped Rabi oscillations are
found between the spin ensemble and the cavity mode which we describe very
accurately, including... | 1410.0728v1 |
2017-12-18 | Non-exponential decoherence of radio-frequency resonance rotation of spin in storage rings | Precision experiments, such as the search for electric dipole moments of
charged particles using radiofrequency spin rotators in storage rings, demand
for maintaining the exact spin resonance condition for several thousand
seconds. Synchrotron oscillations in the stored beam modulate the spin tune of
off-central partic... | 1712.06485v1 |
2019-05-01 | Flopping-mode electric dipole spin resonance | Traditional approaches to controlling single spins in quantum dots require
the generation of large electromagnetic fields to drive many Rabi oscillations
within the spin coherence time. We demonstrate "flopping-mode" electric dipole
spin resonance, where an electron is electrically driven in a Si/SiGe double
quantum do... | 1905.00346v1 |
2021-08-10 | Zero-field spin resonance in graphene with proximity-induced spin-orbit coupling | We investigate collective spin excitations in graphene with proximity-induced
spin-orbit coupling (SOC) of the Rashba and valley-Zeeman types, as it is the
case, e.g., for graphene on transition- metal-dichalcogenide substrates. It is
shown that, even in the absence of an external magnetic field, such a system
supports... | 2108.04420v1 |
2023-02-09 | Calorimetric measurement of nuclear spin-lattice relaxation rate in metals | The quasiparticle density of states in correlated and quantum-critical metals
directly probes the effect of electronic correlations on the Fermi surface.
Measurements of the nuclear spin-lattice relaxation rate provide one such
experimental probe of quasiparticle mass through the electronic density of
states. By far th... | 2302.04442v2 |
2019-10-27 | Tetraneutron resonance in the presence of a dineutron | Background: Several previous studies provided contradicting results for the
four-neutron system, some claiming the existence of a 0+ near-threshold
resonance, others denying presence of any observable resonant states. Purpose:
Since most of the studies employed enhanced two-neutron interactions to follow
the evolution ... | 1910.12333v1 |
2021-06-28 | Resonance from antiferromagnetic spin fluctuations for superconductivity in UTe$_2$ | Superconductivity originates from the formation of bound (Cooper) pairs of
electrons that can move through the lattice without resistance below the
superconducting transition temperature $T_c$. Electron Cooper pairs in most
superconductors form anti-parallel spin singlets with total spin $S=0$,
although they can also f... | 2106.14424v2 |
2000-02-14 | Spin-flux phase in the Kondo lattice model with classical localized spins | We provide numerical evidence that a spin-flux phase exists as a ground state
of the Kondo lattice model with classical local spins on a square lattice. This
state manifests itself as a double-Q magnetic order in the classical spins with
spin density at both $(0,\pi)$ and $(\pi,0)$ and further exhibits fermionic
spin c... | 0002211v1 |
2001-05-09 | The Contribution of Hot Electron Spin Polarization to the Magnetotransport in a Spin-Valve Transistor at Finite Temperatures | The effect of spin mixing due to thermal spin waves and temperature
dependence of hot electron spin polarization to the collector current in a
spin-valve transistor has been theoretically explored. We calculate the
collector current as well as the temperature dependence of magnetocurrent at
finite temperatures to inves... | 0105182v1 |
2007-01-31 | Coupled spin-charge drift-diffusion approach for a two-dimensional electron gas with Rashba spin-orbit coupling | Based on kinetic equations for the density matrix, drift-diffusion equations
are derived for a two-dimensional electron gas with Rashba spin-orbit coupling.
Universal results are obtained for the weak coupling case. Most interesting is
the observation that with increasing spin-orbit coupling strengths there is a
sharp ... | 0701782v1 |
2009-04-13 | Semiclassical spin transport in spin-orbit-coupled systems | This article discusses spin transport in systems with spin-orbit interactions
and how it can be understood in a semiclassical picture. I will first present a
semiclassical wave-packet description of spin transport, which explains how the
microscopic motion of carriers gives rise to a spin current. Due to spin
non-conse... | 0904.1999v1 |
2010-10-29 | Confinement-induced p-wave resonances from s-wave interactions | We show that a purely s-wave interaction in three dimensions (3D) can induce
higher partial-wave resonances in mixed dimensions. We develop two-body
scattering theories in all three cases of 0D-3D, 1D-3D, and 2D-3D mixtures and
determine the positions of higher partial-wave resonances in terms of the 3D
s-wave scatteri... | 1011.0033v2 |
2023-01-20 | Generation of photon pairs by spontaneous four-wave mixing in linearly uncoupled resonators | We present a detailed study of the generation of photon pairs by spontaneous
four-wave mixing in a structure composed of two linearly uncoupled resonators,
where energy can be transferred from one resonator to another only through a
nonlinear interaction. Specifically, we consider the case of two
racetrack-shaped reson... | 2301.08603v1 |
2023-07-30 | The generation of high-energy electron-positron pairs during the Breit-Wheeler resonant process in a strong field of an X-ray electromagnetic wave | The Breith-Wheeler resonant process has been theoretically studied in a
strong X-ray electromagnetic wave field under conditions when the energy of one
of the initial high-energy gamma quanta passes into the energy of a positron or
electron. These resonant conditions have been studied in detail. Analytical
formulas for... | 2308.02520v1 |
2000-10-31 | Few-body resonances in light nuclei | We have localized several few-body resonances in light nuclei, using methods
which can properly handle two- or three-body resonant states. Among other
results, we predict the existence of a three-neutron resonance, small
spin-orbit splittings between the low-lying states in He-5 and Li-5, the
nonexistence of the soft d... | 0010105v1 |
2016-07-08 | Resonant electron-phonon-electron interaction | The effect of the resonance of electron scattering energy difference and
phonon energy on the electron-phonon-electron interaction (EPEI) is studied.
Results show that the resonance of electron transition energy and phonon energy
can enhance EPEI by a magnitude of 1 to 2. Moreover, the anisotropic S-wave
electron or dx... | 1607.02338v1 |
2018-03-30 | Resonance in the $Y_{c}N$ potential model | We calculate two-body $J^{\pi}=0^{+}, 1^{+}$, and $J^{\pi}=2^{+}$ resonance
states of $Y_{c}$ ($= \Lambda_{c}$, $\Sigma_{c}$, or $\Sigma_{c}^{*}$) and $N$
using the complex scaling method. We employ the $Y_{c}N$-CTNN potentials, which
were proposed in our previous study, and obtain four resonances near
$\Sigma_{c}N$ an... | 1803.11349v1 |
2023-01-05 | Resonant triad interactions of gravity waves in cylindrical basins | We present the results of a theoretical investigation into the existence,
evolution and excitation of resonant triads of nonlinear free-surface gravity
waves confined to a cylinder of finite depth. It is well known that resonant
triads are impossible for gravity waves in laterally unbounded domains; we
demonstrate, how... | 2301.02163v2 |
2024-02-18 | Polarization-dependent resonant phenomena in all-dielectric scatterers: inversion of magnetic inductance and electric displacement | The theoretical description and experimental verification of resonant
phenomena in electromagnetic fields generated in the near zone of
all-dielectric rectangular thin sub wavelength frames, subjected to an incident
microwave, is considered. The geometry of considered problems is presented by
means of arrangements of t... | 2402.11509v1 |
2018-08-19 | On Bragg resonances and wave triad interactions in two-layered shear flows | The standard resonance conditions for Bragg scattering as well as weakly
nonlinear wave triads have been traditionally derived in the absence of any
background velocity. In this paper, we have studied how these resonance
conditions get modified when uniform, as well as various piecewise linear
velocity profiles, are co... | 1808.06236v3 |
2008-06-13 | Control of scroll wave turbulence using resonant perturbations | Turbulence of scroll waves is a sort of spatio-temporal chaos that exists in
three-dimensional excitable media. Cardiac tissue and the Belousov-Zhabotinsky
reaction are examples of such media. In cardiac tissue, chaotic behaviour is
believed to underlie fibrillation which, without intervention, precedes cardiac
death. ... | 0806.2262v2 |
2023-12-14 | Towards Inductive Robustness: Distilling and Fostering Wave-induced Resonance in Transductive GCNs Against Graph Adversarial Attacks | Graph neural networks (GNNs) have recently been shown to be vulnerable to
adversarial attacks, where slight perturbations in the graph structure can lead
to erroneous predictions. However, current robust models for defending against
such attacks inherit the transductive limitations of graph convolutional
networks (GCNs... | 2312.08651v1 |
2017-08-01 | Gravitational Wave Searches for Aligned-Spin Binary Neutron Stars Using Nonspinning Templates | We study gravitational wave searches for merging binary neutron stars (NSs).
We use nonspinning template waveforms towards the signals emitted from
aligned-spin NS-NS binaries, in which the spins of the NSs are aligned with the
orbital angular momentum. We use the TaylorF2 waveform model, which can
generate inspiral wa... | 1708.00426v1 |
2016-12-13 | Spin precession and spin waves in a chiral electron gas: beyond Larmor's theorem | Larmor's theorem holds for magnetic systems that are invariant under spin
rotation. In the presence of spin-orbit coupling this invariance is lost and
Larmor's theorem is broken: for systems of interacting electrons, this gives
rise to a subtle interplay between the spin-orbit coupling acting on individual
single-parti... | 1612.04314v1 |
2003-05-13 | Structure of positive energy states in a deformed mean-field potential | We investigate the properties of single-particle resonances in a
non-spherical potential by solving the coupled-channels equations for the
radial wave functions. We first generalize the box discretization method for
positive energy states to a deformed system. As in the spherical case, we find
that the discretized ener... | 0305034v2 |
2003-10-02 | Double-resonant extremely asymmetrical scattering of electromagnetic waves in periodic arrays separated by a gap | Two strong simultaneous resonances of scattering--double-resonant extremely
asymmetrical scattering (DEAS)--are predicted in two parallel, oblique,
periodic Bragg arrays separated by a gap, when the scattered wave propagates
parallel to the arrays. One of these resonances is with respect to frequency
(which is common t... | 0310011v1 |
2007-12-21 | On gravitational-electromagnetic resonance | This is an English translation of the paper M.B.Mensky, in: K.P.Stanyukovich
(ed.), "Problems of Theory of Gravity and Elementary Particles", issue 6,
Moscow, Atomizdat, 1975, p.181-190 (in Russian). This paper elaborates further
the idea (formulated in 1971 by Braginsky and Mensky) of detecting
high-frequency gravitat... | 0712.3721v1 |
2008-03-23 | Resonant interactions of nonlinear water waves in a finite basin | We study exact four-wave resonances among gravity water waves in a square box
with periodic boundary conditions. We show that these resonant quartets are
linked with each other by shared Fourier modes in such a way that they form
independent clusters. These clusters can be formed by two types of quartets:
(1) {\it angl... | 0803.3308v2 |
2010-07-22 | Couplings in coupled channels versus wave functions in the case of resonances: application to the two $Λ(1405)$ states | In this paper 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 al... | 1007.3923v2 |
2016-05-16 | The arithmetic geometry of resonant Rossby wave triads | Linear wave solutions to the Charney-Hasegawa-Mima partial differential
equation with periodic boundary conditions have two physical interpretations:
Rossby (atmospheric) waves, and drift (plasma) waves in a tokamak. These waves
display resonance in triads. In the case of infinite Rossby deformation radius,
the set of ... | 1605.04637v3 |
2018-06-08 | Coupled-Mode Theory for Stationary and Nonstationary Resonant Sound Propagation | We present a complete analytical derivation of the equations used for
stationary and nonstationary wave systems regarding resonant sound transmission
and reflection described by the phenomenological Coupled-Mode Theory. We
calculate the propagating and coupling parameters used in Coupled-Mode Theory
directly by utilizi... | 1806.02971v1 |
2018-06-29 | Optical probing of Rayleigh wave driven magneto-acoustic resonance | The resonant interaction of electrically excited travelling surface acoustic
waves and magnetization has been hitherto probed through the acoustic
component. In this work it is investigated using time-resolved magneto-optical
detection of magnetization dynamics. To that end, we develop an experimental
scheme where lase... | 1806.11410v1 |
2022-11-28 | Energetic electron precipitation driven by electromagnetic ion cyclotron waves from ELFIN's low altitude perspective | We review comprehensive observations of electromagnetic ion cyclotron (EMIC)
wave-driven energetic electron precipitation using data from the energetic
electron detector on the Electron Losses and Fields InvestigatioN (ELFIN)
mission, two polar-orbiting low-altitude spinning CubeSats, measuring 50-5000
keV electrons wi... | 2211.15653v1 |
1997-10-09 | Alternating-Spin Ladders | We investigate a two-leg spin ladder system composed of alternating-spin
chains with two-different kind of spins. The fixed point properties are
discussed by using spin-wave analysis and non-linear sigma model techniques.
The model contains various massive phases, reflecting the interplay between the
bond-alternation a... | 9710082v1 |
2009-02-28 | Nanostratification of optical excitation in self-interacting 1D arrays | The major assumption of the Lorentz-Lorenz theory about uniformity of local
fields and atomic polarization in dense material does not hold in finite groups
of atoms, as we reported earlier [A. E. Kaplan and S. N. Volkov, Phys. Rev.
Lett., v. 101, 133902 (2008)]. The uniformity is broken at sub-wavelength
scale, where t... | 0903.0045v2 |
2011-12-14 | Gravitational Waves from Quasicircular Extreme Mass-Ratio Inspirals as Probes of Scalar-Tensor Theories | A stellar-mass compact object spiraling into a supermassive black hole, an
extreme-mass-ratio inspiral (EMRI), is one of the targets of future
gravitational-wave detectors and it offers a unique opportunity to test General
Relativity (GR) in the strong-field. We study whether generic scalar-tensor
(ST) theories can be ... | 1112.3351v2 |
2023-01-27 | Geodesics and gravitational waves in chaotic extreme-mass-ratio inspirals: the curious case of Zipoy-Voorhees black-hole mimickers | Due to the growing capacity of gravitational-wave astronomy and black-hole
imaging, we will soon be able to emphatically decide if astrophysical objects
lurking in galactic centers are black holes. Sgr A*, one of the most prolific
astronomical radio sources in our galaxy, is the focal point for tests of
general relativ... | 2301.11483v2 |
2023-05-20 | Frequency-tunable magnetic field sensing using continuous-wave optically detected magnetic resonance with nitrogen-vacancy centers in diamond | The nitrogen-vacancy (NV) center is a promising candidate to realize
practical quantum sensors with high sensitivity and high spatial resolution,
even at room temperature and atmospheric pressure. In conventional
high-frequency AC magnetometry with NV centers, the setup requires a pulse
sequence with an appropriate tim... | 2305.12141v1 |
2017-02-03 | Enhanced Spin Conductance of a Thin-Film Insulating Antiferromagnet | We investigate spin transport by thermally excited spin waves in an
antiferromagnetic insulator. Starting from a stochastic Landau-Lifshitz-Gilbert
phenomenology, we obtain the out-of-equilibrium spin-wave properties. In linear
response to spin biasing and a temperature gradient, we compute the spin
transport through a... | 1702.00975v2 |
2020-11-06 | Acoustic spin Hall effect in strong spin-orbit metals | We report on the observation of the acoustic spin Hall effect that
facilitates lattice motion induced spin current via spin orbit interaction
(SOI). Under excitation of surface acoustic wave (SAW), we find a spin current
flows orthogonal to the propagation direction of a surface acoustic wave (SAW)
in non-magnetic meta... | 2011.03246v2 |
2000-08-17 | Atomic four-wave mixing: fermions versus bosons | We compare the efficiency of four-wave mixing in quantum degenerate gases of
bosonic and fermionic atoms. It is shown that matter-wave gratings formed from
either bosonic or fermionic atoms can in principle exhibit nearly identical
Bragg-scattering, i.e. four-wave mixing, properties. This implies that effects
such as c... | 0008264v1 |
2013-04-16 | Rogue waves emerging from the resonant interaction of three waves | We introduce a novel family of analytic solutions of the three-wave resonant
interaction equations to the purpose of modeling unique events, i.e. "amplitude
peaks" which are isolated in space and time. The description of these solutions
is likely to be a crucial step in the understanding and forecasting of
rogue-waves ... | 1304.4402v1 |
2014-09-04 | Elliptic Waves in Two Component Long Wave--Short Wave Resonance Interaction System in One and Two dimensions | We consider (2+1) and (1+1) dimensional long-wave short-wave resonance
interaction systems. We construct an extensive set of exact periodic solutions
of these systems in terms of Lam\'e polynomials of order one and two. The
periodic solutions are classified into three categories as similar, mixed,
superposed elliptic s... | 1409.1328v1 |
2018-09-20 | Explosive instability due to flow over a rippled bottom | In this paper, we study Bragg resonance, i.e. the triad interaction between
surface and/or interfacial waves with bottom ripple, in presence of background
velocity. We show that when one of the constituent waves of the triad has
negative energy, the amplitudes of all the waves grow exponentially. This is
very different... | 1809.07507v1 |
2020-06-04 | Cylindrical gravitational waves: radiation and resonance | In the weak field approximation the gravitational wave is approximated as a
linear wave, which ignores the nonlinear effect. In this paper, we present an
exact general solution of the cylindrical gravitational wave. The exact
solution of the cylindrical gravitational wave is far different from the weak
field approximat... | 2006.06405v1 |
1999-01-14 | Spin dynamics in the generalized ferromagnetic Kondo model for manganites | Dynamical spin susceptibility is calculated for the generalized ferromagnetic
Kondo model which describes itinerant $e_{g}$ electrons interacting with
localized $t_{2g}$ electrons with antiferromagnetic coupling. The calculations
done in the mean field approximation show that the spin-wave spectrum of the
system in fer... | 9901141v1 |
2001-08-23 | Filtering spin with tunnel-coupled electron wave guides | We show how momentum-resolved tunneling between parallel electron wave guides
can be used to observe and exploit lifting of spin degeneracy due to Rashba
spin-orbit coupling. A device is proposed that achieves spin filtering without
using ferromagnets or the Zeeman effect. | 0108373v2 |
2018-04-02 | Pulsars as Weber gravitational wave detectors | A gravitational wave passing through a pulsar will lead to a variation in the
moment of inertia of the pulsar affecting its rotation. This will affect the
extremely accurately measured spin rate of the pulsar as well as its pulse
profile (due to induced wobbling depending on the source direction). The effect
will be mo... | 1804.00453v2 |
2000-07-04 | Spin-wave spectrum of a two-dimensional itinerant electron system: Analytic results for the incommensurate spiral phase in the strong-coupling limit | We study the zero-temperature spin fluctuations of a two-dimensional
itinerant-electron system with an incommensurate magnetic ground state
described by a single-band Hubbard Hamiltonian. We introduce the
(broken-symmetry) magnetic phase at the mean-field (Hartree-Fock) level through
a \emph{spiral spin configuration} ... | 0007044v1 |
2014-10-14 | Spin precession mapping at ferromagnetic resonance via nuclear resonant scattering | We probe the spin dynamics in a thin magnetic film at ferromagnetic resonance
by nuclear resonant scattering of synchrotron radiation at the 14.4 keV
resonance of $^{57}$Fe. The precession of the magnetization leads to an
apparent reduction of the magnetic hyperfine field acting at the $^{57}$Fe
nuclei. The spin dynami... | 1410.3689v1 |
2016-12-21 | Superconducting grid-bus surface code architecture for hole-spin qubits | We present a scalable hybrid architecture for the 2D surface code combining
superconducting resonators and hole-spin qubits in nanowires with tunable
direct Rashba spin-orbit coupling. The back-bone of this architecture is a
square lattice of capacitively coupled coplanar waveguide resonators each of
which hosts a nano... | 1612.07292v1 |
2024-04-16 | A broadband vortex beam generation by reflective meta-surface based on metal double-slit resonant ring | Recently, meta-surface(MS) has emerged as a promising alternative method for
generating vortex waves. At the same time, MS also face the problem of narrow
bandwidth, in order to obtain a board bandwidth, the MS unit cells structure
become more and more complex, which will deduce many inconveniences to the
preparation p... | 2404.10330v1 |
2010-12-21 | Non-Volatile Magnonic Logic Circuits Engineering | We propose a concept of magnetic logic circuits engineering, which takes an
advantage of magnetization as a computational state variable and exploits spin
waves for information transmission. The circuits consist of magneto-electric
cells connected via spin wave buses. We present the result of numerical
modeling showing... | 1012.4768v1 |
2010-12-25 | Interaction of a nonlinear spin wave and magnetic soliton in a uniaxial anisotropic ferromagnet | We study the interaction of a nonlinear spin-wave and magnetic soliton in a
uniaxial anisotropic ferromagnet. By means of a reasonable assumption and a
straightforward Darboux transformation one- and two-soliton solutions in a
nonlinear spin-wave background are obtained analytically, and their properties
are discussed ... | 1012.5467v1 |
2015-09-16 | Microwave excitation of spin wave beams in thin ferromagnetic films | We present an approach enabling generation of narrow spin wave beams in thin
homogeneous ferromagnetic films. The main idea is to match the wave vector of
the spin wave with that corresponding to the spectral maximum of the exciting
microwave magnetic field only locally, in the region of space from which the
beam shoul... | 1509.05061v2 |
2018-03-13 | Spin wave localization and guiding by magnon band structure engineering in yttrium iron garnet | In spintronics the propagation of spin-wave excitations in magnetically
ordered materials can also be used to transport and process information. One of
the most popular materials in this regard is the ferrimagnetic insulator
yttrium-iron-garnet due its exceptionally small spin-wave damping parameter.
While the small re... | 1803.04943v3 |
2020-01-24 | Propagating magnetic droplet solitons as moveable nanoscale spin-wave sources with tunable direction of emission | Magnetic droplets are strongly nonlinear and localized spin-wave solitons
that can be formed in current-driven nanocontacts. Here, we propose a simple
way to launch droplets in an inhomogeneous nanoscopic waveguide. We use the
drift motion of a droplet and show that in a system with broken translational
symmetry, the d... | 2001.08967v1 |
2020-01-30 | An anomalous refraction of spin waves as a way to guide signals in curved magnonic multimode waveguides | We present a method for efficient spin wave guiding within the magnonic
nanostructures. Our technique is based on the anomalous refraction in the
metamaterial flat slab. The gradual change of the material parameters
(saturation magnetization or magnetic anisotropy) across the slab allows
tilting the wavefronts of the t... | 2001.11356v1 |
2020-02-14 | Spin-wave diode and circulator based on unidirectional coupling | In magnonics, an emerging branch of wave physics characterized by low-energy
consumption, it is highly desirable to realize circuit elements within the
scope of spin-wave computing. Here, based on numerical simulations, we
demonstrate the functionality of the spin-wave diode and the circulator to
steer and manipulate s... | 2002.06096v1 |
2020-07-23 | Density Wave Mediated Dzyaloshinskii-Moriya Interactions | We investigate the effect that density wave states have on the localized
spins of a square lattice. We find that topologically nontrivial density wave
states can induce stable Dzyaloshinskii-Moriya (DM) interactions among the
localized spins of the lattice in the presence of an external magnetic field,
and we study the... | 2007.11719v1 |
2023-07-19 | Checkerboard bubble lattice formed by octuple-period quadruple-$Q$ spin density waves | We investigate multiple-$Q$ instability on a square lattice at particular
ordering wave vectors. We find that a superposition of quadruple-$Q$ spin
density waves, which are connected by fourfold rotational and mirror
symmetries, gives rise to a checkerboard bubble lattice with a collinear spin
texture as a result of th... | 2307.10444v1 |
2019-10-07 | Chiral spin-wave velocities induced by all-garnet interfacial Dzyaloshinskii-Moriya interaction in ultrathin yttrium iron garnet films | Spin waves can probe the Dzyaloshinskii-Moriya interaction (DMI) which gives
rise to topological spin textures, such as skyrmions. However, the DMI has not
yet been reported in yttrium iron garnet (YIG) with arguably the lowest damping
for spin waves. In this work, we experimentally evidence the interfacial DMI in
a 7~... | 1910.02599v2 |
2023-03-08 | True amplification of spin waves in magnonic nano-waveguides | Magnonic nano-devices exploit magnons -- quanta of spin waves -- to transmit
and process information within a single integrated platform that has the
potential to outperform traditional semiconductor-based electronics for low
power applications. The main missing cornerstone of this information
nanotechnology is an effi... | 2303.04695v2 |
2017-12-11 | Two-photon driven Kerr resonator for quantum annealing with three-dimensional circuit QED | We propose a realizable circuit QED architecture for engineering states of a
superconducting resonator off-resonantly coupled to an ancillary
superconducting qubit. The qubit-resonator dispersive interaction together with
a microwave drive applied to the qubit gives rise to a Kerr resonator with
two-photon driving that... | 1712.03613v2 |
2012-02-05 | Topological and Entanglement Properties of Resonating Valence Bond wavefunctions | We examine in details the connections between topological and entanglement
properties of short-range resonating valence bond (RVB) wave functions using
Projected Entangled Pair States (PEPS) on kagome and square lattices on
(quasi-)infinite cylinders with generalized boundary conditions (and perimeters
with up to 20 la... | 1202.0947v4 |
2017-07-10 | Controlling surface charge and spin density oscillations by Dirac plasmon interaction in thin topological insulators | We study the selective excitation at infrared and THz frequencies of optical
and acoustic plasmonic modes supported by thin topological insulators. These
modes are characterized by effective net charge or net spin density,
respectively, and we study their excitation by combining many-body and
electromagnetic calculatio... | 1707.03050v2 |
2015-06-24 | Modulational Instability in the Whitham Equation with Surface Tension and Vorticity | We study modulational stability and instability in the Whitham equation,
combining the dispersion relation of water waves and a nonlinearity of the
shallow water equations, and modified to permit the effects of surface tension
and constant vorticity. When the surface tension coefficient is large, we show
that a periodi... | 1506.07560v2 |
2021-09-30 | Reflection and transmission of a Kelvin-Helmholtz wave incident on a shock in a jet | Screech tones in supersonic jets are underpinned by resonance between
downstream-travelling Kelvin-Helmholtz waves and upstream-travelling acoustic
waves. Specifically, recent work suggests that the relevant acoustic waves are
guided within the jet and are described by a discrete mode of the linearised
Navier-Stokes eq... | 2109.14988v1 |
2021-12-30 | The dynamics and observability of circularly polarized kink waves | Context. Kink waves are routinely observed in coronal loops. Resonant
absorption is a well-accepted mechanism that extracts energy from kink waves.
Nonlinear kink waves are know to be affected by the Kelvin-Helmholtz
instability. However, all previous numerical studies consider linearly
polarized kink waves. Aims. We s... | 2112.14951v1 |
2023-04-12 | Evidence of experimental three-wave resonant interactions between two dispersion branches | We report the observation of nonlinear three-wave resonant interactions
between two different branches of the dispersion relation of hydrodynamic
waves, namely the gravity-capillary and sloshing modes. These atypical
interactions are investigated within a torus of fluid for which the sloshing
mode can be easily excited... | 2304.05668v1 |
2011-05-06 | Decoherence-assisted initialization of a resident hole spin polarization in a two-dimensional hole gas | We investigate spin dynamics of resident holes in a p-modulation-doped
GaAs/Al$_{0.3}$Ga$_{0.7}$As single quantum well. Time-resolved Faraday and Kerr
rotation, as well as resonant spin amplification, are utilized in our study. We
observe that nonresonant or high power optical pumping leads to a resident hole
spin pola... | 1105.1338v2 |
2008-02-26 | Dynamical Structure Factor and Spin-Density Separation for a Weakly-Interacting Two-Component Bose Gas | We show that spin-density separation in a Bose gas is not restricted to 1D
but also occurs in higher dimension. The ratio ($\alpha$) of the intra-species
atom-atom interaction strength to the inter-species interaction strength,
strongly influences the dynamics of spin-density separation and the elementary
excitations. ... | 0802.3818v5 |
2012-02-06 | High-temperature spin-wave propagation in BiFeO3: relation to the Polomska transition | In bismuth ferrite thin films the cycloidal spiral spin structure is
suppressed, and as a result the spin-wave magnon branches of long wavelength
are reduced from a dozen to one, at \omega = 19.2 cm-1 (T=4K). This spin wave
has not been measured previously above room temperature, but in the present
work we show via Ram... | 1202.1040v1 |
2013-08-15 | Spin-Wave Propagation in the Presence of Interfacial Dzyaloshinskii-Moriya Interaction | In ferromagnetic thin films, broken inversion symmetry and spin-orbit
coupling give rise to interfacial Dzyaloshinskii-Moriya interactions. Analytic
expressions for spin-wave properties show that the interfacial
Dzyaloshinskii-Moriya interaction leads to non-reciprocal spin-wave
propagation, i.e. different properties f... | 1308.3341v1 |
2013-11-27 | Quasi-2D $J_1$-$J_2$ Antiferromagnet $Zn_2VO(PO_4)_2$ and its $Ti$-substituted Derivative - A Spin-wave Analysis | In this study, we present non-linear spin wave analysis of a quasi 2D
spin-$\frac{1}{2}$ $J_1-J_2$ antiferromagnet at the parameter regime relevant
for the recently studied compound $Zn_2VO(PO_4)_2$. We obtain the temperature
dependence of the spin wave energy, susceptibility and magnetization using
Green's function te... | 1311.6915v1 |
2014-06-27 | Spin waves along the edge states | Spin waves have been studied experimentally and by simulations in 1000 nm
side equilateral triangular Permalloy dots in the Buckle state (B, with
in-plane field along the triangle base) and the Y state (Y, with in-plane field
perpendicular to the base). The excess of exchange energy at the triangles
edges creates chann... | 1406.7200v1 |
2018-12-08 | Directional Spin-wave Propagation in the Skyrmion Chain | The Dzyaloshinskii-Moriya interaction (DMI), favoring a chiral spin structure
like the skyrmion, gives rise to the nonreciprocal propagation of spin waves.
We investigate the propagation of spin waves in a nanostripe with the presence
of a skyrmion chain by using micromagnetic simulations. Through applying a
microwave ... | 1812.03297v2 |
2021-04-13 | Confined dipole and exchange spin waves in a bulk chiral magnet with Dzyaloshinskii-Moriya interaction | The Dzyaloshinskii-Moriya interaction (DMI) has an impact on excited spin
waves in the chiral magnet Cu$_2$OSeO$_3$ by means of introducing asymmetry on
their dispersion relations. The confined eigenmodes of a chiral magnet are
hence no longer the conventional standing spin waves. Here we report a combined
experimental... | 2104.06240v2 |
2022-12-22 | Hybrid Magnonic-Oscillator System | We propose a hybrid magnonic-oscillator system based on the combination of a
spin transfer auto-oscillator and a magnonic waveguide to open new perspectives
for spin-wave based circuits. The system is composed of a spin transfer
oscillator based on a vortex state which is dipolarly coupled to a nanoscale
spin-wave wave... | 2212.11532v1 |
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