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2024-02-01 | Spin wave-driven variable-phase mutual synchronization in spin Hall nano-oscillators | Spin-orbit torque can drive auto-oscillations of propagating spin wave (PSW)
modes in nano-constriction spin Hall nano-oscillators (SHNOs). These modes
allow both long-range coupling and the potential of controlling its phase --
critical aspect for nano-magnonics, spin wave logic, and Ising machines. Here,
we demonstra... | 2402.00586v1 |
2016-01-27 | Dynamic nuclear polarization in a magnetic resonance force microscope experiment | We report achieving enhanced nuclear magnetization in a magnetic resonance
force microscope experiment at 0.6 tesla and 4.2 kelvin using the dynamic
nuclear polarization (DNP) effect. In our experiments a microwire coplanar
waveguide delivered radiowaves to excite nuclear spins and microwaves to excite
electron spins i... | 1601.07253v2 |
2013-09-16 | Ambipolar spin transport in (111) GaAs quantum wells | We present a microscopic theory for transport of the spin polarized charge
density wave with both electrons and holes in the $(111)$ GaAs quantum wells.
We analytically show that, contradicting to the commonly accepted belief, the
spin and charge motions are bound together only in the fully polarized system
but can be ... | 1309.3871v2 |
2014-07-16 | Spin Excitation Spectra of Spin-Orbit Coupled Bosons in Optical Lattice | Spin-wave excitation plays important roles in the investigation of the
magnetic phases. In this paper, we study the spin-wave excitation spectra of
two-component Bose gases with spin-orbit coupling on a deep square optical
lattice using spin-wave theory. We find that, while the excitation spectrum of
the vortex crystal... | 1407.4172v1 |
2015-03-11 | Spin-wave-induced spin torque in Rashba spin-orbit coupling system | We study the effects of Rashba spin-orbit coupling on the spin torque induced
by spin waves, which are the plane wave dynamics of magnetization. The spin
torque is derived from linear response theory, and we calculate the dynamic
spin torque by considering the impurity-ladder-sum vertex corrections. This
dynamic spin t... | 1503.03171v2 |
2015-11-07 | Universal Spin-Momentum Locked Optical Forces | Evanescent electromagnetic waves possess spin-momentum locking, where the
direction of propagation (momentum) is locked to the inherent polarization of
the wave (transverse spin). We study the optical forces arising from this
universal phenomenon and show that the fundamental origin of recently reported
non-trivial opt... | 1511.02305v1 |
2018-03-30 | Extraordinary SEAWs under influence of the spin-spin interaction and the quantum Bohm potential | The separate spin evolution (SSE) of electrons causes the existence of the
spin-electron acoustic wave. Extraordinary spin-electron acoustic waves (SEAWs)
propagating perpendicular to the external magnetic field have large
contribution of the transverse electric field. Its spectrum has been studied in
the quasi-classic... | 1803.11403v1 |
2020-09-03 | Coincidence inelastic neutron scattering for detection of two-spin magnetic correlations | Inelastic neutron scattering (INS) is one powerful technique to study the
low-energy single-spin dynamics of magnetic materials. A variety of quantum
magnets show novel magnetic correlations such as quantum spin liquids. These
novel magnetic correlations are beyond the direct detection of INS. In this
paper we propose ... | 2009.01680v2 |
2021-02-15 | Emission of Spin-correlated Matter-wave Jets from Spinor Bose-Einstein Condensates | We report the observation of matter-wave jet emission in a strongly
ferromagnetic spinor Bose-Einstein condensate of $^7$Li atoms. Directional
atomic beams with $|{F=1,m_F=1}\rangle$ and $|{F=1,m_F=-1}\rangle$ spin states
are generated from $|{F=1,m_F=0}\rangle$ state condensates, or vice versa. This
results from colle... | 2102.07613v1 |
2010-07-12 | Quantum imaging of spin states in optical lattices | We investigate imaging of the spatial spin distribution of atoms in optical
lattices using non-resonant light scattering. We demonstrate how scattering
spatially correlated light from the atoms can result in spin state images with
enhanced spatial resolution. Furthermore, we show how using spatially
correlated light ca... | 1007.1899v1 |
2015-08-26 | Calculation of Spin Observables for Proton-Proton Elastic Scattering in the Bethe-Salpeter Equation | Bethe-Salpeter equation is applied to $p$-$p$ elastic scattering. The
observables of spin are calculated in the framework of the M matrix using the
two-body interaction potential. The parameter of the pseudovector coupling
constant is adjusted so as to reproduce the spin singlet part. It is shown that
the spin rotation... | 1508.06393v1 |
2004-05-18 | Multichannel field-effect spin barrier selector | We have studied spin carrier dynamics under full spin-orbit coupling. The
anisotropy of dispersions for independent circular spinor polarizations is
explored as a possible vertical multichannel voltage controlled spin-filter.
Small voltage variations are found to select the current polarizations in a
resonant tunneling... | 0405418v1 |
2013-09-12 | Observation of Pure Spin Transport in a Diamond Spin Wire | Spin transport electronics - spintronics - focuses on utilizing electron spin
as a state variable for quantum and classical information processing and
storage. Some insulating materials, such as diamond, offer defect centers whose
associated spins are well-isolated from their environment giving them long
coherence time... | 1309.3199v3 |
2021-02-11 | Excitation of forward and backward surface waves in a negative-index metamaterial | We study beam transmission and refection resulting from the resonant
excitation of forward and backward surface waves in a metamaterial. We predict
that exciting these waves at an interface this medium and free space led to
transmitted and reflected beams with high amplitudes. The FDTD simulated
results demonstrate cle... | 2102.06208v1 |
2021-10-01 | Experimental quasi-1D capillary-wave turbulence | Wave turbulence in quasi-1D geometry is usually not investigated
experimentally since low-order resonant wave interactions are theoretically
prohibited. Here, we report on the first observation of unidirectional
capillary-wave turbulence on the surface of a fluid in a canal. We also show
that five-wave interactions are... | 2110.01448v1 |
2020-05-22 | Dynamic diffractive resonant radiation in a linearly chirped nonlinear waveguide array | We theoretically and numerically investigate the evolution of discrete
soliton in a 1D linearly chirped nonlinear waveguide array (WA). The discrete
soliton is self-accelerated inside the transversely chirped WA and emits a
\textit{dynamic diffractive resonant radiation} (DifRR). The radiation appears
when soliton wave... | 2005.11379v1 |
2022-11-28 | Parametric amplification of electromagnetic plasma waves in resonance with a dispersive background gravitational wave | It is shown that a sub-luminal electromagnetic plasma wave, propagating in
phase with a background sub-luminal gravitational wave in a dispersive medium,
can undergo parametric amplification. For this phenomena to occur, the
dispersive characteristics of the two waves must properly match. The response
frequencies of th... | 2211.15801v1 |
1997-03-17 | Acoustic wave propagation in the solar atmosphere. IV Nonadiabatic wave excitation with frequency spectra | We study the response of the solar atmosphere to excitations by large
amplitude acoustic waves with radiation damping now included. Monochromatic
adiabatic waves, due to unbalanced heating, generate continuously rising
chromospheric temperature plateaus in which the low frequency resonances
quickly die out. All non-adi... | 9703106v1 |
1996-02-05 | Influence of wave frequency variation on anomalous cyclotron resonance interaction of energetic electrons with finite amplitutude ducted whistler-mode wave | The influence of wave frequency variation on the anomalous cyclotron
resonance $\omega=\omega_{Be}+kv_{\|}$ interaction (ACRI) of energetic
electrons with a ducted finite amplitude whistler-mode wave propagating through
the so-called transient plasma layer (TPL) in the magnetosphere or in the
ionosphere is studied both... | 9602001v1 |
2016-08-04 | Faraday and resonant waves in binary collisionally-inhomogeneous Bose-Einstein condensates | We study Faraday and resonant waves in two-component quasi-one-dimensional
(cigar-shaped) collisionally inhomogeneous Bose-Einstein condensates subject to
periodic modulation of the radial confinement. We show by means of extensive
numerical simulations that, as the system exhibits stronger spatially-localised
binary c... | 1608.01580v1 |
2021-04-16 | Attenuating surface gravity waves with mechanical metamaterials | Metamaterials and photonic/phononic crystals have been successfully developed
in recent years to achieve advanced wave manipulation and control, both in
electromagnetism and mechanics. However, the underlying concepts are yet to be
fully applied to the field of fluid dynamics and water waves. Here, we present
an exampl... | 2104.08243v1 |
2019-04-18 | Particle Energy Diffusion in Linear Magnetohydrodynamic Waves | In high-energy astronomical phenomena, the stochastic particle acceleration
by turbulences is one of the promising processes to generate non-thermal
particles. In this paper, we investigate the energy-diffusion efficiency of
relativistic particles in a temporally evolving wave ensemble that consists of
a single mode (A... | 1904.08579v2 |
2019-07-18 | Graded metasurface for enhanced sensing and energy harvesting | In elastic wave systems, combining the powerful concepts of resonance and
spatial grading within structured surface arrays enable resonant metasurfaces
to exhibit broadband wave focusing, mode conversion from surface (Rayleigh)
waves to bulk (shear) waves, and spatial frequency selection. Devices built
around these con... | 1907.09297v1 |
2012-12-19 | Topological Resonances in Scattering on Networks (Graphs) | We report on a hitherto unnoticed type of resonances occurring in scattering
from networks (quantum graphs) which are due to the complex connectivity of the
graph - its topology. We consider generic open graphs and show that any cycle
leads to narrow resonances which do not fit in any of the prominent paradigms
for nar... | 1212.4682v1 |
2013-04-15 | Vibrational Resonance in the Morse Oscillator | We investigate the occurrence of vibrational resonance in both classical and
quantum mechanical Morse oscillators driven by a biharmonic force. The
biharmonic force consists of two forces of widely different frequencies \omega
and \Omega with \Omega>>\omega. In the damped and biharmonically driven
classical Morse oscil... | 1304.3988v1 |
2014-04-29 | Temporal behavior of laser induced elastic plate resonances | This paper investigates the dependence on Poisson's ratio of local plate
resonances in low attenuating materials. In our experiments, these resonances
are generated by a pulse laser source and detected with a heterodyne
interferometer measuring surface displacement normal to the plate. The laser
impact induces a set of... | 1404.7464v2 |
2016-06-21 | On three-dimensional plasmon resonance in elastostatics | We consider the plasmon resonance for the elastostatic system in
$\mathbb{R}^3$ associated with a very broad class of sources. The plasmonic
device takes a general core-shell-matrix form with the metamaterial located in
the shell. It is shown that the plasmonic device in the literature which
induces resonance in $\math... | 1606.06440v1 |
2019-03-05 | Efficient self-resonance instability from axions | It was recently shown that a coherent oscillation of an axion can cause an
efficient parametric resonance, leading to a prominent emission of the
gravitational waves (GWs). In this paper, conducting the Floquet analysis, we
investigate the parametric resonance instability, which potentially triggers
the emission of the... | 1903.02119v2 |
2019-06-30 | Computing resonant modes of circular cylindrical resonators by vertical mode expansions | Open subwavelength cylindrical resonators of finite height are widely used in
various photonics applications. Circular cylindrical resonators are
particularly important in nanophotonics, since they are relatively easy to
fabricate and can be designed to exhibit different resonance effects. In this
paper, an efficient a... | 1907.00340v1 |
2024-03-22 | Closed-channel parameters of Feshbach resonances | In the work of Phys. Rev. A 100, 042710 (2019), it was argued that the
general description of two-body Feshbach resonances requires "closed-channel
parameters" related to the bare bound state causing the resonance. The present
work shows that once the resonance theory is renormalised (i.e. its parameters
are expressed ... | 2403.14962v1 |
2006-10-11 | Miscibility in a degenerate fermionic mixture induced by linear coupling | We consider a one-dimensional mean-field-hydrodynamic model of a
two-component degenerate Fermi gas in an external trap, each component
representing a spin state of the same atom. We demonstrate that the
interconversion between them (linear coupling), imposed by a resonant
electromagnetic wave, transforms the immiscibl... | 0610317v1 |
2001-03-15 | Late-time dynamics of rapidly rotating black holes | We study the late-time behaviour of a dynamically perturbed rapidly rotating
black hole. Considering an extreme Kerr black hole, we show that the large
number of virtually undamped quasinormal modes (that exist for nonzero values
of the azimuthal eigenvalue m) combine in such a way that the field (as
observed at infini... | 0103054v1 |
2007-01-09 | Baryon resonances in large N_c QCD | This thesis deals with the study of baryon spectra in the context of the
$1/N_c$ expansion. The standard tool to study baryon properties is the
constituent quark model. The results are naturally model dependent. The $1/N_c$
expansion generates a new perturbative approach to QCD, convenient for low
momentum transfer. It... | 0701061v1 |
2010-03-02 | Dynamical effects of QCD in $q^2 \bar{q}^{2}$ systems | We study the coupling of a tetraquark system to an exchanged meson-meson
channel, using a pure gluonic theory based four-quark potential {\em matrix}
model which is known to fit well a large number of data points for lattice
simulations of different geometries of a four-quark system. We find that if
this minimal-area-b... | 1003.0576v5 |
2010-09-13 | Nonlinear atom interferometer surpasses classical precision limit | Interference is fundamental to wave dynamics and quantum mechanics. The
quantum wave properties of particles are exploited in metrology using atom
interferometers, allowing for high-precision inertia measurements [1, 2].
Furthermore, the state-of-the-art time standard is based on an interferometric
technique known as R... | 1009.2374v1 |
2011-04-29 | Klein tunneling in graphene: optics with massless electrons | This article provides a pedagogical review on Klein tunneling in graphene,
i.e. the peculiar tunneling properties of two-dimensional massless Dirac
electrons. We consider two simple situations in detail: a massless Dirac
electron incident either on a potential step or on a potential barrier and use
elementary quantum w... | 1104.5632v3 |
2015-04-20 | Experimental Observation of Bohr's Nonlinear Fluidic Surface Oscillation | Niels Bohr in the early stage of his career developed a nonlinear theory of
fluidic surface oscillation in order to study surface tension of liquids. His
theory includes the nonlinear interaction between multipolar surface
oscillation modes, surpassing the linear theory of Rayleigh and Lamb. It
predicts a specific norm... | 1504.05105v1 |
2018-05-25 | Cassini Ring Seismology as a Probe of Saturn's Interior I: Rigid Rotation | Seismology of the gas giants holds the potential to resolve long-standing
questions about their internal structure and rotation state. We construct a
family of Saturn interior models constrained by the gravity field and compute
their adiabatic mode eigenfrequencies and corresponding Lindblad and vertical
resonances in ... | 1805.10286v2 |
2019-07-23 | A photonic crystal Josephson traveling wave parametric amplifier | An amplifier combining noise performances as close as possible to the quantum
limit with large bandwidth and high saturation power is highly desirable for
many solid state quantum technologies such as high fidelity qubit readout or
high sensitivity electron spin resonance for example. Here we introduce a new
Traveling ... | 1907.10158v2 |
2023-08-20 | Nature of $X(3872)$ from its radiative decay | We study the radiative decay of $X(3872)$ based on the assumption that
$X(3872)$ is regarded as a $c\overline{c}$ charmonium with quantum number
$J^{PC}=1^{++}$ ($J,\,P,\,C$ represent the spin, parity and charge conjugation,
respectively). The form factors of $X(3872)$ transitions to $J/\psi\gamma$ and
$\psi'\gamma$ ($... | 2308.10219v2 |
2023-08-29 | Edge Magnetoplasmon Dispersion and Time-Resolved Plasmon Transport in a Quantum Anomalous Hall Insulator | A quantum anomalous Hall (QAH) insulator breaks reciprocity by combining
magnetic polarization and spin-orbit coupling to generate a unidirectional
transmission of signals in the absence of an external magnetic field. Such
behavior makes QAH materials a good platform for the innovation of circulator
technologies. Howev... | 2308.15665v1 |
2023-12-19 | Multiband Metallic Ground State in Multilayered Nickelates La$_3$Ni$_2$O$_7$ and La$_4$Ni$_3$O$_{10}$ Probed by $^{139}$La-NMR at Ambient Pressure | We report a $^{139}$La-NMR study of polycrystalline samples of
multi($n$)-layered nickelates, La$_3$Ni$_2$O$_{7-\delta}$ ($n=2$) and
La$_4$Ni$_3$O$_{10-\delta}$ ($n=3$), at ambient pressure. Measurements of the
nuclear magnetic resonance (NMR) spectra and nuclear spin relaxation rate
($1/T_1$) indicate the emergence of... | 2312.11844v2 |
1999-01-25 | Resonances in the three-neutron system | A study of 3-body resonances has been performed in the framework of
configuration space Faddeev equations. The importance of keeping a sufficient
number of terms in the asymptotic expansion of the resonance wave function is
pointed out. We investigated three neutrons interacting in selected force
components taken from ... | 9901074v1 |
2007-10-02 | Nonlinear Optical Spectroscopy of Photonic Metamaterials | We have obtained spectra of second-harmonic generation, third harmonic
generation, and four-wave mixing from a fishnet metamaterial around its
magnetic resonance. The resonant behaviors are distinctly different from those
for ordinary materials. They result from the fact that the resonance is
plasmonic, and its enhance... | 0710.0599v1 |
2009-10-29 | Giant enhancement of electric field between two close metallic grains due to plasmonic resonance | We theoretically examine plasmonic resonance between two close metallic
grains separated by a gap of width much less than the length of the incident
electromagnetic wave. Resonance conditions are established and the electric
field enhancement is found. Our general arguments are confirmed by analytic
solution of the pro... | 0910.5716v1 |
2010-02-04 | Subharmonic resonance of global climate to solar forcing | It is shown that, the wavelet regression detrended fluctuations of the
monthly global temperature data (land and ocean combined) for the period
1880-2009yy, are completely dominated by one-third subharmonic resonance to
annual forcing (both natural and anthropogenically induced). Role of the
oceanic Rossby waves and th... | 1002.1024v1 |
2011-05-25 | Counting the Resonances in High and Even Dimensional Obstacle Scattering | In this paper, we give a polynomial lower bound for the resonances of
$-\Delta$ perturbed by an obstacle in even-dimensional Euclidean spaces,
$n\geq4$. The proof is based on a Poisson Summation Formula which comes from
the Hadamard factorization theorem in the open upper complex plane. We take
advantage of the singula... | 1105.4972v1 |
2012-10-29 | Resonance free regions for nontrapping manifolds with cusps | We prove resolvent estimates for nontrapping manifolds with cusps which imply
the existence of arbitrarily wide resonance free strips, local smoothing for
the Schrodinger equation, and resonant wave expansions. We obtain lossless
limiting absorption and local smoothing estimates, but the estimates on the
holomorphicall... | 1210.7736v1 |
2015-03-22 | Synchrotron radiation of dissipative solitons in optical fiber cavities | New resonant emission of dispersive waves by oscillating solitary structures
is considered analytically and numerically. The resonance condition for the
radiation is derived and it is demonstrated that the predicted resonances match
the spectral lines observed in numerical simulations perfectly. The complex
recoil of t... | 1503.06405v1 |
2008-06-20 | Slow passage through parametric resonance for a weakly nonlinear dispersive wave | A solution of the nonlinear Klein-Gordon equation perturbed by a parametric
driver is studied. The frequency of the parametric perturbation varies slowly
and passes through a resonant value. It yields a change in a solution. We
obtain a connection formula for the asymptotic solution before and after the
resonance. | 0806.3338v1 |
2020-06-22 | Dynamics of resonances for 0th order pseudodifferential operators | We study the dynamics of resonances of analytic perturbations of 0th order
pseudodifferential operators $P(s)$. In particular, we prove a Fermi golden
rule for resonances of $P(s)$ at embedded eigenvalues of $P=P(0)$. We also
study the dynamics of eigenvalues of $P(t)=P+it\Delta$ as the eigenvalues
converge to simple e... | 2006.11951v1 |
2017-10-14 | Lorentz-boosted evanescent waves | Polarization, spin, and helicity are important properties of electromagnetic
waves. It is commonly believed that helicity is invariant under the Lorentz
transformations. This is indeed so for plane waves and their localized
superpositions. However, this is not the case for evanescent waves, which are
well-defined only ... | 1710.05145v2 |
1999-07-08 | Semiclassical theory of the emission properties of wave-chaotic resonant cavities | We develop a perturbation theory for the lifetime and emission intensity for
isolated resonances in asymmetric resonant cavities. The inverse lifetime
$\Gamma$ and the emission intensity $I(\theta)$ in the open system are
expressed in terms of matrix elements of operators evaluated with eigenmodes of
the closed resonat... | 9907109v1 |
2001-03-16 | Dispersoin of the πresonance | We study the dispersion of the $\pi$ resonance in the superconducting state
within the projected SO(5) model\cite{project}. Away from the the commensurate
momentum, the propagation of the $\pi$ resonance creates phase slips in the
superconducting order parameter. This frustration effect leads to a strong
dressing of th... | 0103363v1 |
2005-10-12 | Resonant light-light interaction in slab waveguides: angular filters and spectral hole burning | We consider the process of low-power light scattering by optical solitons in
a slab waveguide with homogeneous and inhomogeneous refractive index core. We
observe resonant reflection (Fano resonance) as well as resonant transmission
of light by optical solitons at certain incident angles. The resonance position
can be ... | 0510023v1 |
2002-10-02 | Shell model in the complex energy plane and two-particle resonances | An implementation of the shell-model to the complex energy plane is
presented. The representation used in the method consists of bound
single-particle states, Gamow resonances and scattering waves on the complex
energy plane. Two-particle resonances are evaluated and their structure in
terms of the single-particle degr... | 0210006v1 |
2003-10-24 | Multiplet Structure of Feshbach Resonances in non-zero partial waves | We report a unique feature of magnetic field Feshbach resonances in which
atoms collide with non-zero orbital angular momentum. P-wave ($l=1$) Feshbach
resonances are split into two components depending on the magnitude of the
resonant state's projection of orbital angular momentum onto the field axis.
This splitting i... | 0310121v1 |
2001-11-29 | Field quantization for chaotic resonators with overlapping modes | Feshbach's projector technique is employed to quantize the electromagnetic
field in optical resonators with an arbitray number of escape channels. We find
spectrally overlapping resonator modes coupled due to the damping and noise
inflicted by the external radiation field. For wave chaotic resonators the mode
dynamics ... | 0111156v2 |
2009-02-24 | A Primer on Resonances in Quantum Mechanics | After a pedagogical introduction to the concept of resonance in classical and
quantum mechanics, some interesting applications are discussed. The subject
includes resonances occurring as one of the effects of radiative reaction, the
resonances involved in the refraction of electromagnetic waves by a medium with
a compl... | 0902.4061v1 |
2010-03-29 | One More Tool for Understanding Resonance | We propose the application of graphical convolution to the analysis of the
resonance phenomenon. This time-domain approach encompasses both the finally
attained periodic oscillations and the initial transient period. It also
provides interesting discussion concerning the analysis of non-sinusoidal
waves, based not on f... | 1003.5543v2 |
2010-11-26 | Nonlinear effects in resonant layers in solar and space plasmas | The present paper reviews recent advances in the theory of nonlinear driven
magnetohydrodynamic (MHD) waves in slow and Alfven resonant layers. Simple
estimations show that in the vicinity of resonant positions the amplitude of
variables can grow over the threshold where linear descriptions are valid.
Using the method ... | 1011.5786v1 |
2010-12-27 | Quantum behaviour of a flux qubit coupled to a resonator | We present a detailed theoretical analysis for a system of a superconducting
flux qubit coupled to a transmission line resonator. The master equation,
accounting incoherent processes for a weakly populated resonator, is
analytically solved. An electromagnetic wave transmission coefficient through
the system, which prov... | 1012.5599v1 |
2011-01-16 | Fano resonances in magnetic metamaterials | We study the scattering of magnetoinductive plane waves by internal
(external) capacitive (inductive) defects coupled to a one-dimensional
split-ring resonator array. We examine a number of simple defect configurations
where Fano resonances occur and study the behavior of the transmission
coefficient as a function of t... | 1101.3032v2 |
2011-07-29 | Coupling constants of the $S_{11}$ resonances to pseudoscalar mesons and octet baryons | Coupling constants of $S_{11}(1535)$ and $S_{11}(1650)$ resonances to
meson-baryon ($\pi N$, $\eta N$, $\eta^\prime N$, $KY$) are investigated in a
chiral quark model, complemented by inclusion of five-quark components in those
resonances. The known strong decay partial widths of both resonances are well
reproduced, pr... | 1107.5991v2 |
2011-11-15 | Fano-like interference of plasmon resonances at a single rod-shaped nanoantenna | Single metallic nanorods acting as half-wave antennas in the optical range
exhibit an asymmetric, multi-resonant scattering spectrum that strongly depends
on both their length and dielectric properties. Here we show that such spectral
features can be easily understood in terms of Fano-like interference between
adjacent... | 1111.3551v2 |
2014-10-31 | Feshbach Resonances in Kerr Frequency Combs | We show that both the power and repetition rate of a frequency comb generated
in a nonlinear ring resonator, pumped with continuous wave (cw) coherent light,
are modulated. The modulation is brought about by the interaction of the cw
background with optical pulses excited in the resonator, and occurs in
resonators with... | 1410.8604v1 |
2018-06-06 | Nonlinear resonances generate large-scale vortices in the phase space in plasma systems | It is well-known that the resonance phenomena can destroy the adiabatic
invariance and cause chaos and mixing. In the present paper we show that the
nonlinear wave-particle resonant interaction may cause the emergence of
large-scale coherent structures in the phase space. The combined action of the
drift due to nonline... | 1806.02240v1 |
2016-12-28 | Theory of adiabatic fountain resonance | The theory of "Adiabatic Fountain Resonance" with superfluid $^4$He is
clarified. In this geometry a film region between two silicon wafers bonded at
their outer edge opens up to a central region with a free surface. We find that
the resonance in this system is not a Helmholtz resonance as claimed by
Gasparini and co-w... | 1612.08797v1 |
2004-05-26 | Dissociation of ultracold molecules with Feshbach resonances | Ultracold molecules are associated from an atomic Bose-Einstein condensate by
ramping a magnetic field across a Feshbach resonance. The reverse ramp
dissociates the molecules. The kinetic energy released in the dissociation
process is used to measure the widths of 4 Feshbach resonances in 87Rb. This
method to determine... | 0405606v2 |
2023-11-22 | A blueprint for truncation resonance placement in elastic periodic lattices with unit cell asymmetry | Elastic periodic lattices act as mechanical filters of incident vibrational
loads. By and large, they forbid wave propagation within bandgaps and resonate
outside them. However, they often encounter `truncation resonances' inside
bandgaps when certain conditions are met. This study provides an
all-encompassing blueprin... | 2311.13698v1 |
2024-02-09 | Radiative neutron capture rate of $^{11}$B$(n,γ)^{12}$B reaction from the Coulomb dissociation of $^{12}$B | We calculate the $^{11}$B$(n,\gamma)^{12}$B reaction rate, an important
constituent in nucleosynthesis networks, contributed by resonant as well as
non-resonant capture. For the resonant rate, we use the narrow resonance
approximation whereas the non-resonant contribution is calculated with the
Coulomb dissociation met... | 2402.06755v1 |
2016-06-15 | Coupling a single electron spin to a microwave resonator: Controlling transverse and longitudinal couplings | Microwave-frequency superconducting resonators are ideally suited to perform
dispersive qubit readout, to mediate two-qubit gates, and to shuttle states
between distant quantum systems. A prerequisite for these applications is a
strong qubit-resonator coupling. Strong coupling between an electron-spin qubit
and a micro... | 1606.04736v3 |
2000-11-10 | Detection of Single Spin Decoherence in a Quantum Dot via Charge Currents | We consider a quantum dot attached to leads in the Coulomb blockade regime
which has a spin 1/2 ground state. We show that by applying an ESR field to the
dot-spin the stationary current in the sequential tunneling regime exhibits a
resonance whose line width is determined by the single-spin decoherence time
T_2. The R... | 0011193v1 |
2003-09-02 | Nuclear spin induced oscillatory current in spin-blocked quantum dots | Hyperfine coupling of electron spins to nuclear spins is studied for a
GaAs-based double quantum dot in the spin blockade regime where the electron
conduction is mostly blocked by Pauli effect unless the electron spin state in
the double dot is changed. A current flowing through the double dot shows
time-dependent osci... | 0309062v1 |
2003-10-09 | Optically-Induced Suppression of Spin Relaxation in Two-Dimensional Electron Systems with Rashba Interaction | A pulsed technique for electrons in 2D systems, in some ways analogous to
spin echo in nuclear magnetic resonance, is discussed. We show that a sequence
of optical below-band gap pulses can be used to suppress the electron spin
relaxation due to the D'yakonov-Perel' spin relaxation mechanism. The spin
relaxation time i... | 0310225v2 |
2004-06-16 | Magnetic field effects on spin relaxation in heterostructures | Effect of magnetic field on electron spin relaxation in quantum wells is
studied theoretically. We have shown that Larmor effect and cyclotron motion of
carriers can either jointly suppress D'yakonov-Perel' spin relaxation or
compensate each other. The spin relaxation rates tensor is derived for any
given direction of ... | 0406352v1 |
2004-07-14 | Quantum Mechanics of Spin Transfer in Ferromagnetic Multilayers | We use a quantum mechanical treatment of a ballistic spin current to describe
novel aspects of spin transfer to a ferromagnetic multilayer. We demonstrate
quantum phenomena from spin transmission resonance (STR) to magnetoelectric
spin echo (MESE), depending on the coupling between the magnetic moments in the
ferromagn... | 0407365v1 |
2005-12-13 | Knight Field Enabled Nuclear Spin Polarization in Single Quantum Dots | We demonstrate dynamical nuclear spin polarization in the absence of an
external magnetic field, by resonant circularly polarized optical excitation of
a single electron or hole charged quantum dot. Optical pumping of the electron
spin induces an effective inhomogeneous magnetic (Knight) field that determines
the direc... | 0512269v1 |
2006-09-05 | Electrical detection of spin pumping due to the precessing magnetization of a single ferromagnet | We report direct electrical detection of spin pumping, using a lateral normal
metal/ferromagnet/normal metal device, where a single ferromagnet in
ferromagnetic resonance pumps spin polarized electrons into the normal metal,
resulting in spin accumulation. The resulting backflow of spin current into the
ferromagnet gen... | 0609089v1 |
2006-09-12 | Nonlinear dynamics of quantum dot nuclear spins | We report manifestly nonlinear dependence of quantum dot nuclear spin
polarization on applied magnetic fields. Resonant absorption and emission of
circularly polarized radiation pumps the resident quantum dot electron spin,
which in turn leads to nuclear spin polarization due to hyperfine interaction.
We observe that t... | 0609291v1 |
2007-06-11 | Electron and hole spin dynamics and decoherence in quantum dots | In this article we review our work on the dynamics and decoherence of
electron and hole spins in single and double quantum dots. The first part, on
electron spins, focuses on decoherence induced via the hyperfine interaction
while the second part covers decoherence and relaxation of heavy-hole spins due
to spin-orbit i... | 0706.1514v1 |
2009-07-02 | Theory of frequency-dependent spin current noise through correlated quantum dots | We analyze the equilibrium and non-equilibrium frequency-dependent spin
current noise and spin conductance through a quantum dot in the local moment
regime. Spin current correlations are shown to behave markedly differently from
charge correlations: Equilibrium spin cross-correlations are suppressed at
frequencies belo... | 0907.0475v2 |
2010-01-07 | Localization of spin mixing dynamics in a spin-1 Bose-Einstein condensate | We propose to localize spin mixing dynamics in a spin-1 Bose-Einstein
condensate by a temporal modulation of spin exchange interaction, which is
tunable with optical Feshbach resonance. Adopting techniques from coherent
control, we demonstrate the localization/freezing of spin mixing dynamics, and
the suppression of th... | 1001.1035v2 |
2010-04-08 | Spin detection at elevated temperatures using a driven double quantum dot | We consider a double quantum dot in the Pauli blockade regime interacting
with a nearby single spin. We show that under microwave irradiation the average
electron occupations of the dots exhibit resonances that are sensitive to the
state of the nearby spin. The system thus acts as a spin meter for the nearby
spin. We i... | 1004.1289v1 |
2011-06-02 | Spin-dependent inertial force and spin current in accelerating systems | The spin-dependent inertial force in an accelerating system under the
presence of electromagnetic fields is derived from the generally covariant
Dirac equation. Spin currents are evaluated by the force up to the lowest order
of the spin-orbit coupling in both ballistic and diffusive regimes. We give an
interpretation o... | 1106.0366v1 |
2011-12-02 | Initialization and Readout of Spin Chains for Quantum Information Transport | Linear chains of spins acting as quantum wires are a promising approach to
achieve scalable quantum information processors. Nuclear spins in apatite
crystals provide an ideal test-bed for the experimental study of quantum
information transport, as they closely emulate a one-dimensional spin chain.
Nuclear Magnetic Reso... | 1112.0459v1 |
2013-07-12 | Observation of Longitudinal Spin Seebeck Effect with Various Transition Metal Films | We evaluated the thermoelectric properties of longitudinal spin Seebeck
devices by using ten different transition metals (TMs). Both the intensity and
sign of spin Seebeck coefficients were noticeably dependent on the degree of
the inverse spin Hall effect and the resistivity of each TM film. Spin
dependent behaviors w... | 1307.3320v1 |
2014-10-07 | Determination of intrinsic spin Hall angle in Pt | The spin Hall angle in Pt is evaluated in Pt/NiFe bilayers by spin torque
ferromagnetic resonance (ST-FMR) measurements, and is found to increase with
increasing the NiFe thickness. To extract the intrinsic spin Hall angle in Pt
by estimating the total spin current injected into NiFe from Pt, the NiFe
thickness depende... | 1410.1601v1 |
2017-11-20 | Dynamical suppression of fluctuations in an interacting nuclear spin bath of a self-assembled quantum dot using multiple pulse nuclear magnetic resonance | Electron spin qubit coherence in quantum dots is ultimately limited by random
nuclear spin bath fluctuations. Here we aim to eliminate this randomness by
making spin bath evolution deterministic. We introduce spin bath control
sequences, which systematically combine Hahn and solid echoes to suppress
inhomogeneous broad... | 1711.07238v1 |
2018-08-24 | Residual spin susceptibility in the spin-triplet, orbital-singlet model | Nuclear magnetic resonance (NMR) and Knight shift measurements are critical
tools in the identification of spin-triplet superconductors. We discuss the
effects of spin orbit coupling on the Knight shift and susceptibilities for a
variety of spin triplet multi-orbital gap functions with orbital-singlet
character and com... | 1808.08029v1 |
2019-02-26 | Dynamic spin-charge coupling: spin Hall magnetoresistance in non-magnetic conductors | The dynamic coupling between spin and charge currents in non-magnetic
conductors is considered. As a consequence of this coupling, the spin dynamics
is directly reflected in the electrical impedance of the sample, with a
relevant frequency scale defined by spin relaxation and spin diffusion. This
allows the observation... | 1902.09784v1 |
2021-08-13 | Coupling the Higgs mode and ferromagnetic resonance in spin-split superconductors with Rashba spin-orbit coupling | We consider the Higgs mode at nonzero momentum in superconductors and
demonstrate that in the presence of Rashba spin-orbit coupling, it couples
linearly with an external exchange field. The Higgs-spin coupling dramatically
modifies the spin susceptibility near the superconducting critical temperature
and consequently ... | 2108.06202v2 |
2021-03-29 | Tilting Planets During Planet Scattering | Observational constraints on planet spin-axis has recently become possible,
and revealed a system that favors a large spin-axis misalignment, a low stellar
spin-orbit misalignment and a high eccentricity. To explain the origin of such
systems, we propose a mechanism that could tilt the planet spin-axis during
planet-pl... | 2103.15843v2 |
2022-11-25 | Certifying entanglement of spins on surfaces using ESR-STM | We propose a protocol to certify the presence of entanglement in artificial
on-surface atomic and molecular spin arrays using electron spin resonance
carried by scanning tunnel microscopes (ESR-STM). We first generalize the
theorem that relates global spin susceptibility as an entanglement witness to
the case of anisot... | 2211.14205v3 |
2023-01-26 | Anisotropic spin-current spectroscopy of ferromagnetic superconducting gap symmetries | We develop a microscopic theory of tunneling spin transport at the magnetic
interface between a ferromagnetic insulator and a ferromagnetic superconductor
(FSC) driven by ferromagnetic resonance. We show that the spin susceptibilities
of the FSC can be extracted from the spin currents by tuning the easy axis of
the FSC... | 2301.11027v3 |
2015-12-25 | Surface spin-electron acoustic waves in magnetically ordered metals | Degenerate plasmas with motionless ions show existence of three surface
waves: the Langmuir wave, the electromagnetic wave, and the zeroth sound.
Applying the separated spin evolution quantum hydrodynamics to half-space
plasma we demonstrate the existence of the surface spin-electron acoustic wave
(SSEAW). We study dis... | 1512.07940v1 |
2022-01-26 | Spin Wave Electromagnetic Nano-Antenna Enabled by Tripartite Phonon-Magnon-Photon Coupling | We investigate tripartite coupling between phonons, magnons and photons in a
periodic array of elliptical magnetostrictive nanomagnets delineated on a
piezoelectric substrate to form a two-dimensional two-phase multiferroic
crystal. A surface acoustic wave (phonons) of 5 - 35 GHz frequency launched
into the substrate c... | 2201.11110v1 |
2016-06-27 | Nonreciprocal Transverse Photonic Spin and Magnetization-Induced Electromagnetic Spin-Orbit Coupling | A study of nonreciprocal transverse-spin angular-momentum-density shifts for
evanescent waves in magneto-optic waveguide media is presented. Their
functional relation to electromagnetic spin- and orbital-momenta is presented
and analyzed. It is shown that the magneto-optic gyrotropy can be
re-interpreted as the nonreci... | 1606.08334v2 |
2018-09-07 | Spin angular momentum in planar and cylindrical waveguides induced by transverse confinement and intrinsic helicity of guided light | In recent years, extraordinary spin angular momenta have been investigated in
a variety of structured electromagnetic waves, being of especial interest in
sub-wavelength evanescent fields. Here we demonstrate analytically that, in
planar and cylindrical waveguides supporting transverse electric/magnetic
modes, transver... | 1809.02406v1 |
2019-05-04 | Skyrmion quantum spin Hall effect | The quantum spin Hall effect is conventionally thought to require a strong
spin-orbit coupling, producing an effective spin-dependent magnetic field.
However, spin currents can also be present without transport of spins, for
example, in spin-waves or skyrmions. In this paper, we show that topological
skyrmionic spin te... | 1905.01459v2 |
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