publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2008-03-12 | Single- and Multichannel Wave Bending | Recently, we have discovered a new concept of permanent wave resonance with
potential spatial oscillations. This means the constant wave swinging frequency
on the whole energy intervals of spectral forbidden zones destroying physical
solutions and deepening the theory of waves in periodic potentials. It also
shows the ... | 0803.1767v1 |
2008-03-20 | Response of a ferrofluid to traveling-stripe forcing | We observe the dynamics of waves propagating on the surface of a ferrofluid
under the influence of a spatially and temporarily modulated field. In
particular, we excite plane waves by a travelling lamellar modulation of the
magnetization. By this external driving both the wavelength and the propagation
velocity of the ... | 0803.3038v1 |
2008-10-07 | Water-wave gap solitons: An approximate theory and accurate numerical experiments | It is demonstrated that a standard coupled-mode theory can successfully
describe weakly-nonlinear gravity water waves in Bragg resonance with a
periodic one-dimensional topography. Analytical solutions for gap solitons
provided by this theory are in a reasonable agreement with accurate numerical
simulations of exact eq... | 0810.1125v2 |
2009-12-04 | Experimental and numerical studies of terahertz surface waves on a thin metamaterial film | We present experimental and numerical studies of localized terahertz surface
waves on a subwavelength-thick metamaterial film consisting of in-plane
split-ring resonators. A simple and intuitive model is derived that describes
the propagation of surface waves as guided modes in a waveguide filled with a
Lorentz-like me... | 0912.0800v1 |
2009-12-15 | Acoustic excitation of superharmonic capillary waves on a meniscus in a planar micro-geometry | The effects of ultrasound on the dynamics of an air-water meniscus in a
planar micro-geometry are investigated experimentally. The sonicated meniscus
exhibits harmonic traveling waves or standing waves, the latter corresponding
to a higher ultrasound level. Standing capillary waves with subharmonic and
superharmonic fr... | 0912.2903v1 |
2010-01-06 | Plasma waves reflection from a boundary with specular accommodative boundary conditions | In the present work the linearized problem of plasma wave reflection from a
boundary of a half--space is solved analytically. Specular accommodative
conditions of plasma wave reflection from plasma boundary are taken into
consideration. Wave reflectance is found as function of the given parameters of
the problem, and i... | 1001.0845v1 |
2011-07-14 | Ponderomotive forces and wave dispersion: two sides of the same coin | Presented here is a general view on adiabatic and resonant wave-particle
interactions leading to a uniform description of nonlinear ponderomotive
effects in very different environments, from low-temperature plasmas to
relativistic plasmas or even atoms in laser light. Treating the wave-particle
interaction as a classic... | 1107.2852v1 |
2012-11-30 | Atom lens without chromatic aberrations | We propose a lens for atoms with reduced chromatic aberrations and calculate
its focal length and spot size. In our scheme a two-level atom interacts with a
near-resonant standing light wave formed by two running waves of slightly
different wave vectors, and a far-detuned running wave propagating
perpendicular to the s... | 1211.7220v3 |
2014-01-01 | Unveiling Magnetic Dipole Radiation in Phase-Reversal Leaky-Wave Antennas | The radiation principle of travelling-wave type phase-reversal antennas is
explained in details, unveiling the presence of magnetic-dipole radiation in
addition to well-known electric dipole radiation. It is point out that such
magnetic dipole radiation is specific to the case of traveling-wave
phase-reversal antennas ... | 1401.0242v1 |
2015-08-08 | Implementation of electromagnetically induced transparency in a metamaterial controlled with auxiliary waves | We propose a metamaterial to realize true electromagnetically induced
transparency (EIT), where the incidence of an auxiliary electromagnetic wave
called the control wave induces transparency for a probe wave. The analogy to
the original EIT effect in an atomic medium is shown through analytical and
numerical calculati... | 1508.01889v2 |
2015-12-07 | Wave-particle interactions in the outer radiation belts | Data from the Van Allen Probes have provided the first extensive evidence of
non-linear (as opposed to quasi-linear) wave-particle interactions in space
with the associated rapid (fraction of a bounce period) electron acceleration
to hundreds of keV by Landau resonance in the parallel electric fields of time
domain str... | 1512.01863v1 |
2016-01-31 | Interaction of modulated gravity water waves of finite depth | We consider the capillary-gravity water-waves problem of finite depth with a
flat bottom of one or two horizontal dimensions. We derive the modulation
equations of leading and next-to-leading order in the hyperbolic scaling for
three weakly amplitude-modulated plane-wave solutions of the linearized problem
in the absen... | 1602.00255v1 |
2017-01-06 | Parametric decay of plasma waves near the upper-hybrid resonance | An intense X wave propagating perpendicularly to dc magnetic field is
unstable with respect to a parametric decay into an electron Bernstein wave and
a lower-hybrid wave. A modified theory of this effect is proposed that extends
to the high-intensity regime, where the instability rate $\gamma$ ceases to be
a linear fun... | 1701.01690v1 |
2021-09-24 | An alternative proof of modulation instability of Stokes waves in deep water | We generalize the periodic Evans function approach recently used to study the
spectral stability of Stokes wave and gravity-capillary (including Wilton
ripples) in water of finite depth to study spectral stability of Stokes waves
in water of infinite depth. We prove waves of sufficiently small amplitude are
always low-... | 2109.12101v2 |
2022-01-14 | RayleighBloch waves above the cut-off | Extensions of Rayleigh-Bloch waves above the cut-off frequency are studied
via the discrete spectrum of a transfer operator for a generalised channel
containing a single cylinder. Their wavenumbers are shown to become
complex-valued and an additional pair of wavenumbers to appear. For small to
intermediate radius value... | 2201.05295v1 |
2022-03-03 | The dispersion and propagation of topological Langmuir-cyclotron waves in cold magnetized plasmas | Topological Langmuir-Cyclotron Wave (TLCW) is a recently identified
topological surface excitation in magnetized plasmas. We show that TLCW
originates from the topological phase transition at the Langmuir wave-cyclotron
wave resonance. By isofrequency surface analysis and 2D and 3D time-dependent
simulations, we demons... | 2203.01915v2 |
2023-06-29 | Stochastic gravitational wave background from early dark energy | We study the production of stochastic gravitational wave background from
early dark energy (EDE) model. It is caused by resonant amplification of scalar
field fluctuations, which easily takes place for typical EDE potential based on
the string axion or $\alpha$-attractor model. The resultant spectrum of
gravitational w... | 2306.16896v1 |
2024-03-19 | Simulation of the Wave Turbulence of a Liquid Surface Using the Dynamic Conformal Transformation Method | The dynamic conformal transformation method has been generalized for the
first time to numerically simulate the capillary wave turbulence of a liquid
surface in the plane symmetric anisotropic geometry. The model is strongly
nonlinear and involves effects of surface tension, as well as energy
dissipation and pumping. S... | 2403.12592v1 |
2012-04-01 | Magnetostatic spin waves and magnetic-wave chaos in ferromagnetic films. I. Theory of magnetostatic waves in plates under arbitrary anisotropy and external fields | General phenomenological theory of magnetic spin waves in ferromagnetic media
is originally reformulated and applied to analysis of magnetostatic waves in
films and plates with arbitrary nisotropy under arbitrary external field. Exact
expressions are derived for propagator of linear waves between antennae
(inductors) a... | 1204.0200v1 |
1998-01-15 | Obervation of non-linear stationary spin waves in superfluid 3He-B | Due to its broken spin and orbit rotation symmetries, superfluid $^3$He plays
a unique role for testing rotational quantum properties on a macroscopic scale.
In this system the orbital momentum forms textures that provide an effective
potential well for the creation of stationary spin waves. In the limit of the
lowest ... | 9801159v1 |
1999-09-14 | Spin Wave Theory of Double Exchange Magnets | An isotropic half-metallic double exchange magnet with a direct superexchange
coupling between the localized spins is studied within the spin-wave (1/S)
expansion. The momentum dependence of the spin wave spectrum (including quantum
corrections) in the ferromagnetic phase at T=0 is investigated. Based on the
calculated... | 9909213v3 |
2005-07-28 | Theory of transverse spin dynamics in a polarized Fermi liquid and an itinerant ferromagnet | The linear equations for transverse spin dynamics in a weakly polarized
degenerate Fermi liquid with arbitrary relationship between temperature and
polarization are derived from Landau-Silin phenomenological kinetic equation
with general form of two-particle collision integral. Unlike the previous
treatment where Fermi... | 0507675v1 |
2005-08-19 | Spin-waves in antiferromagnetic single crystal LiFePO$_4$ | Spin-wave dispersions in the antiferromagnetic state of single crystal
LiFePO$_4$ were determined by inelastic neutron scattering measurements. The
dispersion curves measured from the (010) reflection along both {\it a}$^\ast$
and {\it b}$^\ast$ reciprocal-space directions reflect the anisotropic coupling
of the layere... | 0508480v1 |
2006-03-10 | Magnetic Structure and Spin Waves in the Kagomé Jarosite compound ${\bf KFe_3(SO_4)_2(OH)_6}$ | We present a detailed study of the magnetic structure and spin waves in the
Fe jarosite compound ${\rm KFe_3(SO_4)_2(OH)_6}$ for the most general
Hamiltonian involving one- and two-spin interactions which are allowed by
symmetry. We compare the calculated spin-wave spectrum with the recent neutron
scattering data of Ma... | 0603280v1 |
2007-01-08 | Quantum corrections to the spin-wave spectrum of La$_2$CuO$_4$ in an external magnetic field | The effects of quantum fluctuations on the magnetic field dependence of the
spin-wave gaps in the lamellar antiferromagnet La$_2$CuO$_4$ are considered.
Nonlinear corrections to the spin-wave spectrum are calculated to leading order
in 1/S, where $S$ is the localized spin. The nearest-neighbor exchange
interactions bet... | 0701143v1 |
2000-03-16 | Fields on the Poincare group: arbitrary spin description and relativistic wave equations | In this paper, starting from pure group-theoretical point of view, we develop
a regular approach to describing particles with different spins in the
framework of a theory of scalar fields on the Poincare group. Such fields can
be considered as generating functions for conventional spin-tensor fields. The
cases of 2, 3,... | 0003146v2 |
2008-04-09 | Multiferroic materials for spin-based logic devices | Logical devices based on spin waves offer the potential to avoid dissipation
mechanisms that limit devices based on either the charge or spin of mobile
electrons. Multiferroic magnetoelectrics, which are materials that combine
ferroelectric and magnetic order, allow direct switching of magnetic order and
thence of spin... | 0804.1539v1 |
2009-09-07 | Spin excitations in the excitonic spin-density-wave state of the iron pnictides | Motivated by the iron pnictides, we examine the spin excitations in an
itinerant antiferromagnet where a spin-density wave (SDW) originates from an
excitonic instability of nested electron-like and hole-like Fermi pockets.
Using the random phase approximation (RPA), we derive the Dyson equation for
the transverse susce... | 0909.1222v2 |
2010-01-15 | Neutrino emission from spin waves in neutron spin-triplet superfluid | The linear response of a neutron spin-triplet superfluid onto external weak
axial-vector field is studied for the case of $^{3}P_{2}$ pairing with a
projection of the total angular momentum $m_{j}=0$. The problem is considered
in the BCS approximation discarding Fermi-liquid effects. The anomalous
axial-vector vertices... | 1001.2617v2 |
2010-01-21 | Quantized antiferromagnetic spin waves in the molecular Heisenberg ring CsFe$_8$ | We report on inelastic neutron scattering (INS) measurements on the molecular
spin ring CsFe$_8$, in which eight spin-5/2 Fe(III) ions are coupled by
nearest-neighbor antiferromagnetic Heisenberg interaction. We have recorded INS
data on a non-deuterated powder sample up to high energies at the
time-of-flight spectrome... | 1001.3755v1 |
2010-02-26 | Correlation Effects in the Stochastic Landau-Lifshitz-Gilbert Equation | We analyze the Landau-Lifshitz-Gilbert equation when the precession motion of
the magnetic moments is additionally subjected to an uniaxial anisotropy and is
driven by a multiplicative coupled stochastic field with a finite correlation
time $\tau$. The mean value for the spin wave components offers that the
spin-wave d... | 1002.4958v1 |
2010-08-05 | Influence of spin waves on transport through a quantum-dot spin valve | We study the influence of spin waves on transport through a single-level
quantum dot weakly coupled to ferromagnetic electrodes with noncollinear
magnetizations. Side peaks appear in the differential conductance due to
emission and absorption of spin waves. We, furthermore, investigate the
nonequilibrium magnon distrib... | 1008.0948v2 |
2012-01-30 | Exchange constants and spin waves of the orbital ordered, non-collinear spinel MnV$_2$O$_4$ | We study the exchange constants of MnV$_2$O$_4$ using magnetic force theorem
and local spin density approximation of density functional theory supplemented
with a correction due to on-site Hubbard interaction U. We obtain the exchanges
for three different orbital orderings of the Vanadium atoms of the spinel. We
then m... | 1201.6375v2 |
2013-06-28 | The role of orbital order in the stabilization of the $(π,0)$ ordered magnetic state in a minimal two-band model for iron pnictides | Spin wave excitations and stability of the ($\pi,0$) ordered magnetic state
are investigated in a minimal two-band itinerant-electron model for iron
pnictides. Presence of hopping anisotropy generates a strong ferro-orbital
order in the $d_{xz}$ and $d_{yz}$ Fe orbitals. The orbital order sign is as
observed in experim... | 1306.6727v2 |
2013-08-12 | Oscillating spin-orbit interaction as a source of spin-polarized wave packets in two-terminal nanoscale devices | Ballistic transport through nanoscale devices with time-dependent Rashba-type
spin-orbit interaction (SOI) can lead to spin-polarized wave packets that
appear even for completely unpolarized input. The SOI that oscillates in a
finite domain generates density and spin polarization fluctuations that leave
the region as p... | 1308.2552v2 |
2014-05-09 | Magnetic excitations and anomalous spin wave broadening in multiferroic FeV2O4 | We report on the different roles of two orbital-active Fe$^{2+}$ at the A
site and V$^{3+}$ at the B site in the magnetic excitations and on the
anomalous spin wave broadening in FeV$_{2}$O$_{4}$. FeV$_{2}$O$_{4}$ exhibits
three structural transitions and successive paramagnetic (PM)-collinear
ferrimagnetic (CFI)-nonco... | 1405.2272v2 |
2015-07-12 | On a mechanism of high-temperature superconductivity: Spin-electron acoustic wave as a mechanism for the Cooper pair formation | We have found the mechanism of the electron Cooper pair formation via the
electron interaction by means of the spin-electron acoustic waves. This
mechanism takes place in metals with rather high spin polarization, like
ferromagnetic, ferrimagnetic and antiferromagnetic materials. The spin-electron
acoustic wave mechani... | 1507.03295v2 |
2018-03-26 | Theoretical spin-wave dispersions in the antiferromagnetic phase AF1 of MnWO$_4$ based on the polar atomistic model in P2 | The spin wave dispersions of the low temperature antiferromagnetic phase
(AF1) MnWO$_4$ have been numerically calculated based on the recently reported
non-collinear spin configuration with two different canting angles. A
Heisenberg model with competing magnetic exchange couplings and single-ion
anisotropy terms could ... | 1803.09475v1 |
2018-06-18 | Nonreciprocal spin waves in a chiral antiferromagnet without the Dzyaloshinskii-Moriya interaction | Non-reciprocal spin wave can facilitate the realization of spin wave logic
devices. It has been demonstrated that the non-reciprocity can emerge when an
external magnetic field is applied to chiral magnets, of which spin structures
depend crucially on an asymmetric exchange interaction, that is, the
Dzyaloshinskii-Mori... | 1806.06517v3 |
2016-12-03 | First-principles investigation of spin wave dispersions in surface-reconstructed Co thin films on W(110) | We computed spin wave dispersions of surface-reconstructed Co films on the
W(110) surface in the adiabatic approximation. The magnetic exchange
interactions are obtained via first-principles electronic structure
calculations using the Korringa-Kohn-Rostoker Green function method. We analyze
the strength and oscillatory... | 1612.00910v2 |
2019-04-18 | Magnonic Analogue Black/White Hole Horizon in Superfluid $^3$He-B: experiment | We provide experimental details of the first experiment made in zero
temperature limit ($\sim$ 600\,$\mu$K) studying the magnonic black/white hole
horizon analogue using absolutely pure physical system based on the spin
superfluidity in superfluid $^3$He-B. We show that spin precession waves
propagating on the backgrou... | 1904.09183v1 |
2019-09-10 | Anisotropic magnetic excitations of a frustrated bilinear-biquadratic spin model -- Implications for spin waves of detwinned iron pnictides | Elucidating the nature of spin excitations is important to understanding the
mechanism of superconductivity in the iron pnictides. Motivated by recent
inelastic neutron scattering measurements in the nearly 100% detwinned
BaFe$_{2}$As$_{2}$, we study the spin dynamics of an $S=1$ frustrated
bilinear-biquadratic Heisenb... | 1909.04555v2 |
2020-02-13 | Representations of tensor rotations and the geometry of spin 1/2 | Making use of the real sl(2,R) Lie group algebra generating a spin 1/2 Lie
group allows to create an explicitly given Lorentz invariant fermion wave. As
the generators are real valued they can be interpreted as a deformation tensor
in particular as a deformation tensor of space. Therefore, it is possible to
model a heu... | 2002.05560v1 |
2021-12-15 | Spin Waves and Dirac Magnons in a Honeycomb Lattice Zig-zag Antiferromagnet BaNi2(AsO4)2 | The topological properties of massive and massless fermionic quasiparticles
have been intensively investigated over the past decade in topological
materials without magnetism. Recently, the bosonic analogs of such
quasiparticles arising from spin waves have been reported in the
two-dimensional (2D) honeycomb lattice fe... | 2112.07915v1 |
2022-06-01 | Exceptional spin wave dynamics in an antiferromagnetic honeycomb lattice | We theoretically investigate possible effects of electric current on the spin
wave dynamics for the N\'{e}el-type antiferromagnetic order in a honeycomb
lattice. Based on a general vector decomposition of the spin polarization of
conduction electrons, we find that there can exist reciprocal and nonreciprocal
terms in t... | 2206.00723v1 |
2019-05-23 | Optimal dispersive readout of a spin qubit with a microwave resonator | Strong coupling of semiconductor spin qubits to superconducting microwave
resonators was recently demonstrated. These breakthroughs pave the way for
quantum information processing that combines the long coherence times of
solid-state spin qubits with the long-distance connectivity, fast control, and
fast high-fidelity ... | 1905.09702v2 |
2023-03-29 | Strong coupling between a microwave photon and a singlet-triplet qubit | Tremendous progress in few-qubit quantum processing has been achieved lately
using superconducting resonators coupled to gate voltage defined quantum dots.
While the strong coupling regime has been demonstrated recently for odd charge
parity flopping mode spin qubits, first attempts towards coupling a resonator
to even... | 2303.16825v2 |
2017-08-21 | Experimental Benchmarking of Quantum Control in Zero-Field Nuclear Magnetic Resonance | Zero-field nuclear magnetic resonance (NMR) provides complementary analysis
modalities to those of high-field NMR and allows for ultra-high-resolution
spectroscopy and measurement of untruncated spin-spin interactions. Unlike for
the high-field case, however, universal quantum control -- the ability to
perform arbitrar... | 1708.06324v1 |
2022-12-15 | Hamiltonian inference from dynamical excitations in confined quantum magnets | Quantum-disordered models provide a versatile platform to explore the
emergence of quantum excitations in many-body systems. The engineering of spin
models at the atomic scale with scanning tunneling microscopy and the local
imaging of excitations with electrically driven spin resonance has risen as a
powerful strategy... | 2212.07893v3 |
2023-03-13 | Experimental investigation of the effect of topological insulator on the magnetization dynamics of ferromagnetic metal: $BiSbTe_{1.5}Se_{1.5}$ and $Ni_{80}Fe_{20}$ heterostructure | We have studied ferromagnetic metal/topological insulator bilayer system to
understand magnetization dynamics of ferromagnetic metal (FM) in contact with a
topological insulator (TI). At magnetic resonance condition, the precessing
magnetization in the metallic ferromagnet ($Ni_{80}Fe_{20}$) injects spin
current into t... | 2303.07025v2 |
2011-01-12 | Scattering by coupled resonating elements in air | Scattering by (a) a single composite scatterer consisting of a concentric
arrangement of an outer N-slit rigid cylinder and an inner cylinder which is
either rigid or in the form of a thin elastic shell and (b) by a finite
periodic array of these scatterers in air has been investigated analytically
and through laborato... | 1101.2332v1 |
2012-12-12 | Shape resonances in multi-condensate granular superconductors formed by networks of nanoscale-striped puddles | A characteristic feature of a superconductor made of multiple condensates is
the possibility of the shape resonances in superconducting gaps. Shape
resonances belong to class of Fano resonances in configuration interaction
between open and closed scattering channels. The Shape resonances arise because
of the exchange i... | 1212.2733v1 |
2008-06-03 | Quark models of dibaryon resonances in nucleon-nucleon scattering | We look for $\Delta\Delta$ and $N\Delta$ resonances by calculating $NN$
scattering phase shifts of two interacting baryon clusters of quarks with
explicit coupling to these dibaryon channels. Two phenomenological
nonrelativistic chiral quark models giving similar low-energy $NN$ properties
are found to give significant... | 0806.0458v2 |
2019-04-24 | A mathematical theory for Fano resonance in a periodic array of narrow slits | This work concerns resonant scattering by a perfectly conducting slab with
periodically arranged subwavelength slits, with two slits per period. There are
two classes of resonances, corresponding to poles of a scattering problem. A
sequence of resonances has an imaginary part that is nonzero and on the order
of the wid... | 1904.11019v3 |
2022-07-26 | Resonant tides in binary neutron star mergers: analytical-numerical relativity study | Resonant excitations of $f$-modes in binary neutron star coalescences
influence the gravitational waves (GWs) emission in both quasicircular and
highly eccentric mergers and can deliver information on the star interior. Most
models of resonant tides are built using approximate, perturbative approaches
and thus require ... | 2207.13106v1 |
2022-09-02 | Modeling frequency shifts of collective bubble resonances with the boundary element method | Increasing the number of closely-packed air bubbles immersed in water changes
the frequency of the Minnaert resonance. The collective interactions between
bubbles in a small ensemble are primarily in the same phase, causing them to
radiate a spherically-symmetric field that peaks at a frequency lower than the
Minnaert ... | 2209.01245v2 |
2005-02-18 | Resonances in Ferromagnetic Gratings Detected by Microwave Photoconductivity | We investigate the impact of microwave excited spin excitations on the DC
charge transport in a ferromagnetic (FM) grating. We observe both resonant and
nonresonant microwave photoresistance. Resonant features are identified as the
ferromagnetic resonance (FMR) and ferromagnetic antiresonance (FMAR). A
macroscopic mode... | 0502442v1 |
2006-03-24 | Magnetic resonance in a pyrochlore antiferromagnet Gd2Ti2O7 | Electron spin resonance study of frustrated pyrochlore Gd2Ti2O7 is performed
in a wide frequency band for a temperature range 0.4-30 K, which covers
paramagnetic and magnetically ordered phases. The paramagnetic resonance
reveals the spectroscopic g-factor about 2.0 and a temperature dependent
linewidth. In ordered pha... | 0603653v1 |
2005-04-28 | Resonance radiative decays as a tool for its parity determination | Radiative decays of the spin 1/2 baryonic resonances R with the decay mode R
-> KN in case of small energy release are considered. Pentaquark is an example
of such resonance. It is shown that in case of positive resonance parity
corrections to the soft photon radiation formula are large even at low photon
energies > 20... | 0504268v1 |
1997-08-14 | S-matrix studies of resonances in A=3,4,5,6, and 12 nucleon systems | Resonances of certain light nuclei are explored by studying the complex pole
structures of the scattering matrices. Among other results we predict the
existence of three-neutron and three-proton resonances, a small spin-orbit
splitting in the low-lying He-5 and Li-5 states and the nonexistence of the
soft dipole resona... | 9708024v1 |
1997-12-11 | Nucleon resonances in the constituent quark model with chiral symmetry | The mass spectra of nucleon resonances with spin 1/2, 3/2, and 5/2 are
systematically studied in the constituent quark model with meson-quark
coupling, which is inspired by the spontaneous breaking of chiral symmetry of
QCD.
The meson-quark coupling gives rise not only to the one-meson-exchange
potential between quar... | 9712042v1 |
1998-07-03 | Scaling Properties of the Giant Dipole Resonance Width in Hot Rotating nuclei | We study the systematics of the giant dipole resonance width $\Gamma$ in hot
rotating nuclei as a function of temperature $T$, spin $J$ and mass $A$. We
compare available experimental results with theoretical calculations that
include thermal shape fluctuations in nuclei ranging from A=45 to A=208. Using
the appropriat... | 9807012v1 |
2002-02-08 | Electromagnetic transitions between giant resonances within a continuum-RPA approach | A general continuum-RPA approach is developed to describe electromagnetic
transitions between giant resonances. Using a diagrammatic representation for
the three-point Green's function, an expression for the transition amplitude is
derived which allows one to incorporate effects of mixing of single and double
giant res... | 0202029v2 |
2007-08-06 | Microstrip resonator for microwaves with controllable polarization | In this work the authors implemented a resonator based upon microstrip
cavities that permits the generation of microwaves with arbitrary polarization.
Design, simulation, and implementation of the resonators were performed using
standard printed circuit boards. The electric field distribution was mapped
using a scannin... | 0708.0777v2 |
2009-05-04 | Berry Phase Coupling and the Cuprate Neutron Scattering Resonance | We examine the influence of coupling between particle-hole and
particle-particle spin fluctuations on the inelastic neutron scattering
resonance (INSR) in cuprate superconductors in both weak and strong interaction
limits. For weak-interactions in the particle-hole channel, we find that the
interchannel coupling can el... | 0905.0464v1 |
2009-09-07 | Anomalous magnetotransport and cyclotron resonance of high mobility magnetic 2DHGs in the quantum Hall regime | Low temperature magnetotransport measurements and far infrared transmission
spectroscopy are reported in molecular beam epitaxial grown two-dimensional
hole systems confined in strained InAs quantum wells with magnetic impurities
in the channel. The interactions of the free holes spin with the magnetic
moment of 5/2 pr... | 0909.1124v1 |
2009-12-23 | $πΞ$ Correlations: an Interweaving of Resonance Interaction, Channel Coupling and Coulomb Effects | A method is presented for analysis of correlation function of two
non-identical particles with strong and Coulomb interactions, resonance
formation, channel coupling and spin structure. For resonance reactions we
derive a formula giving the small distance contribution to the correlation
function. The formalism is used ... | 0912.4693v2 |
2010-09-16 | Engineering two-mode squeezed states of cold atomic clouds with a superconducting stripline resonator | A scheme is proposed for engineering two-mode squeezed states of two
separated cold atomic clouds positioned near the surface of a superconducting
stripline resonator. Based on the coherent magnetic coupling between the atomic
spins and a stripline resonator mode, the desired two-mode squeezed state can
be produced via... | 1009.3140v1 |
2011-11-05 | Top quark as a resonance | We suggest the description of the dressed fermion propagator with parity
non-conservation in the form with separated positive and negative energy poles.
We found general form of the $\gamma$-matrix off-shell projectors and
corresponding resonance factors. The parity violation leads to deviation of
resonance factors fro... | 1111.1284v3 |
2014-05-13 | Influence of the ESR saturation on the power sensitivity of cryogenic sapphire resonators | Here, we study the paramagnetic ions behavior in presence of a strong
microwave electromagnetic field sustained inside a cryogenic sapphire
whispering gallery mode resonator. The high frequency measurement resolution
that can be now achieved by comparing two CSOs permit for the first time to
observe clearly the non-lin... | 1405.3081v1 |
2018-07-29 | Logical Fallacy of using the Electric Field in Non-resonant Near-field Optics | We find that the electric field is not a suitable physical quantity to
describe the response of a non-metallic material in the study of non-resonant
near-field optics. In practice, we show the spin-less one-electron two-level
system responds differently to longitudinal and transverse electric fields
under the non-reson... | 1807.10991v1 |
2020-05-30 | Configurational entropy and spectroscopy of pomeron resonances in dynamical AdS/QCD | Pomeron resonances in AdS/QCD are here studied using the configurational
entropy (CE). The concept of CE Regge trajectories, associating the CE of the
pomeron resonances with both their spin $J^{PC}$ and to their mass spectra, is
used to derive the mass spectra of higher $J^{PC}$ pomeron resonances. For it,
the linear,... | 2006.00332v2 |
2022-09-12 | Ultra-High Q Nanomechanical Resonators for Force Sensing | Nanomechanical resonators with ultra-high quality factors have become a
central element in fundamental research, enabling measurements below the
standard quantum limit and the preparation of long-lived quantum states. Here,
I propose that such resonators will allow the detection of electron and nuclear
spins with high ... | 2209.05183v1 |
2024-01-11 | Impact of the molecular resonances on the 12C+12C fusion reaction rate | The properties of the low-energy 12C+12C molecular resonances, which
potentially enhance the fusion reaction rate at low temperatures, have been
investigated by a full-microscopic nuclear model employing various nuclear
energy density functionals. We show that some density functionals plausibly
describe the observed hi... | 2401.05803v1 |
2003-01-28 | Stopping inward planetary migration by a toroidal magnetic field | We calculate the linear torque exerted by a planet on a circular orbit on a
disc containing a toroidal magnetic field. All fluid perturbations are singular
at the so--called magnetic resonances, where the Doppler shifted frequency of
the perturbation matches that of a slow MHD wave propagating along the field
line. The... | 0301556v1 |
2015-04-20 | Lindblad Zones: resonant eccentric orbits to aid bar and spiral formation in galaxy discs | The apsidal precession frequency in a fixed gravitational potential increases
with the radial range of the orbit (eccentricity). Although the frequency
increase is modest it can have important implications for wave dynamics in
galaxy discs, which have not been previously explored in detail. One of the
most interesting ... | 1504.05161v1 |
2016-06-16 | Calculating rotating hydrodynamic and magneto-hydrodynamic waves to understand magnetic effects on dynamical tides | For understanding magnetic effects on dynamical tides, we study the rotating
magneto-hydrodynamic (MHD) flow driven by harmonic forcing. The linear
responses are analytically derived in a periodic box under the local WKB
approximation. Both the kinetic and Ohmic dissipations at the resonant
frequencies are calculated a... | 1606.06232v1 |
2018-07-10 | Nonreciprocal control and cooling of phonon modes in an optomechanical system | Phononic resonators play important roles in settings that range from
gravitational wave detectors to cellular telephones. They serve as
high-performance transducers, sensors, and filters by offering low dissipation,
tunable coupling to diverse physical systems, and compatibility with a wide
range of frequencies, materi... | 1807.03484v1 |
2022-01-14 | Topological Supercavity Resonances In the Finite System | Acoustic resonant cavities play a vital role in modern acoustical systems.
They have led to many essential applications for noise control, biomedical
ultrasonics, and underwater communications. The ultrahigh quality-factor
resonances are highly desired for some applications like high-resolution
acoustic sensors and aco... | 2201.05324v1 |
2022-02-23 | Quarter-wave Resonator Based Tunable Coupler for Xmon Qubits | We propose a scheme of tunable coupler based on quarter-wave resonator for
scalable quantum integrated circuits. The open end of the T-type resonator is
capacitively coupled to two Xmon qubits, while another end is an asymmetric
dc-SQUID which dominates the inductive energy of coupler resonator. The
dc-Current applied ... | 2202.11594v3 |
2008-05-28 | Plasmons in the presence of Tamm-Shockley states with Rashba splitting at noble metal surfaces | Au(111) or similar noble metal surfaces feature Tamm-Shockley surface states
that are known to possess considerable spin-orbit splitting of the Rashba type
of order $\Delta=0.1$ eV. When interacting with an electromagnetic field such
states are expected to have resonances when the frequency of the field is near
the ene... | 0805.4255v2 |
2010-11-23 | Resonant recoil in extreme mass ratio binary black hole mergers | The inspiral and merger of a binary black hole system generally leads to an
asymmetric distribution of emitted radiation, and hence a recoil of the remnant
black hole directed opposite to the net linear momentum radiated. The recoil
velocity is generally largest for comparable mass black holes and particular
spin confi... | 1011.4987v3 |
2012-08-20 | On the spin and parity of a single-produced resonance at the LHC | The experimental determination of the properties of the newly discovered
boson at the Large Hadron Collider is currently the most crucial task in high
energy physics. We show how information about the spin, parity, and, more
generally, the tensor structure of the boson couplings can be obtained by
studying angular and ... | 1208.4018v3 |
2012-12-03 | New Skyrme energy density functional for a better description of the Gamow-Teller Resonance | We present a new Skyrme energy density functional (EDF) named SAMi [Phys.
Rev. C 86 031306(R)]. This interaction has been accurately calibrated to
reproduce properties of doubly-magic nuclei and infinite nuclear matter. The
novelties introduced in the model and fitting protocol of SAMi are crucial for
a better descript... | 1212.0384v1 |
2012-09-07 | Spin-orbit coupling for tidally evolving super-Earths | We investigate the spin behavior of close-in rocky planets and the
implications for their orbital evolution. Considering that the planet rotation
evolves under simultaneous actions of the torque due to the equatorial
deformation and the tidal torque, both raised by the central star, we analyze
the possibility of tempor... | 1209.1580v1 |
2018-02-06 | Odd and even modes of neutron spin resonance in the bilayer iron-based superconductor CaKFe$_4$As$_4$ | We report an inelastic neutron scattering study on the spin resonance in the
bilayer iron-based superconductor CaKFe$_4$As$_4$. In contrast to its
quasi-two-dimensional electron structure, three strongly $L$-dependent modes of
spin resonance are found below $T_c=35$ K. The mode energies are below and
linearly scale wit... | 1802.01901v2 |
1998-06-30 | Structure and Spin Dynamics of La$_{0.85}$Sr$_{0.15}$MnO$_3$ | Neutron scattering has been used to study the structure and spin dynamics of
La$_{0.85}$Sr$_{0.15}$MnO$_3$. The magnetic structure of this system is
ferromagnetic below T_C = 235 K. We see anomalies in the Bragg peak intensities
and new superlattice peaks consistent with the onset of a spin-canted phase
below T_{CA} = ... | 9806381v1 |
2000-09-27 | Microscopic theory of the two-dimensional quantum antiferromagnet in a paramagnetic phase | We have developed a consistent theory of the Heisenberg quantum
antiferromagnet in the disordered phase with a short range antiferromagnetic
order on the basis of the path integral for spin coherent states. We have
presented the Lagrangian of the theory in a form which is explicitly invariant
under rotations and found ... | 0009427v2 |
2007-04-12 | Temperature-driven transition from the Wigner Crystal to the Bond-Charge-Density Wave in the Quasi-One-Dimensional Quarter-Filled band | It is known that within the interacting electron model Hamiltonian for the
one-dimensional 1/4-filled band, the singlet ground state is a Wigner crystal
only if the nearest neighbor electron-electron repulsion is larger than a
critical value. We show that this critical nearest neighbor Coulomb interaction
is different ... | 0704.1656v2 |
2011-02-18 | {\it Ab initio} studies of spin-spiral waves and exchange interactions in 3{\it d} transition metal atomic chains | The total energy of the transverse spin-spiral wave as a function of the wave
vector for all 3$d$ transition metal atomic chains has been calculated within
{\it ab initio} density functional theory with generalized gradient
approximation. It is predicted that at the equilibrium bond length, the V, Mn,
and Fe chains hav... | 1102.3737v1 |
2015-05-14 | First-principles calculations of exchange interactions, spin waves, and temperature dependence of magnetization in inverse-Heusler-based spin gapless semiconductors | Employing first principles electronic structure calculations in conjunction
with the frozen-magnon method we calculate exchange interactions, spin-wave
dispersion, and spin-wave stiffness constants in inverse-Heusler-based spin
gapless semiconductor (SGS) compounds Mn$_2$CoAl, Ti$_2$MnAl, Cr$_2$ZnSi,
Ti$_2$CoSi and Ti$... | 1505.03632v1 |
2019-11-04 | Spin-helix driven insulating phase in two dimensional lattice | Motivated by emergent $SU(2)$ symmetry in the spin orbit coupled system, we
study the spin helix driven insulating phase in two dimensional lattice. When
both Rashba and Dresselhaus spin orbit couplings are present, the perfect Fermi
surface nesting occurs at a special condition depending on the lattice
geometry. In th... | 1911.01440v1 |
2021-08-01 | Directional excitation of a high-density magnon gas using coherently driven spin waves | Controlling magnon densities in magnetic materials enables driving spin
transport in magnonic devices. We demonstrate the creation of large,
out-of-equilibrium magnon densities in a thin-film magnetic insulator via
microwave excitation of coherent spin waves and subsequent multi-magnon
scattering. We image both the coh... | 2108.00467v1 |
2017-01-09 | Spin-Wave versus Joule Heating in Spin-Hall-Effect/Spin-Transfer-Torque Driven Cr/Heusler/Pt Waveguides | We present a time-resolved study of the DC-current driven magnetization
dynamics in a microstructured Cr/Heusler/Pt waveguide by means of Brillouin
light scattering. A reduction of the effective spin-wave damping via the
spin-transfer-torque effect leads to a strong increase in the magnon density.
This is accompanied b... | 1701.02094v2 |
2023-05-07 | Effect of random antiferromagnetic exchange on the spin waves in a three-dimensional Heisenberg ferromagnet | Neutron scattering is used to study spin waves in the three-dimensional
Heisenberg ferromagnet YTiO$_3$, with spin-spin exchange disorder introduced
$via$ La-substitution at the Y site. No significant changes are observed in the
spin-wave dispersion up to a La concentration of 20%. However, a strong
broadening of the s... | 2305.04280v1 |
2013-03-29 | Particle scattering in turbulent plasmas with amplified wave modes | High-energy particles stream during coronal mass ejections or flares through
the plasma of the solar wind. This causes instabilities, which lead to wave
growth at specific resonant wave numbers, especially within shock regions.
These amplified wave modes influence the turbulent scattering process
significantly. In this... | 1303.7463v1 |
2014-02-07 | A route to thermalization in the $α$-Fermi-Pasta-Ulam system | We study the original $\alpha$-Fermi-Pasta-Ulam (FPU) system with $N=16,32$
and $64$ masses connected by a nonlinear quadratic spring. Our approach is
based on resonant wave-wave interaction theory, i.e. we assume that, in the
weakly nonlinear regime (the one in which Fermi was originally interested), the
large time dy... | 1402.1603v2 |
2014-08-11 | Magneto-optical resonance of electromagnetically induced absorption with high contrast and narrow width in a vapour cell with buffer gas | The method for observing the high-contrast and narrow-width resonances of
electromagnetically induced absorption (EIA) in the Hanle configuration under
counterpropagating light waves is proposed. We theoretically analyze the
absorption of a probe light wave in presence of counterpropagating one with the
same frequency ... | 1408.2338v1 |
2015-06-22 | Visualization of phase-coherent electron interference in a ballistic graphene Josephson junction | Interference of standing waves in electromagnetic resonators forms the basis
of many technologies, from telecommunications and spectroscopy to detection of
gravitational waves. However, unlike the confinement of light waves in vacuum,
the interference of electronic waves in solids is complicated by boundary
properties ... | 1506.06734v1 |
2019-04-14 | An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces | We consider a periodic array of resonators, formed from Euler-Bernoulli
beams, attached to the surface of an elastic half-space. Earlier studies of
such systems have concentrated on compressional resonators. In this paper we
consider the effect of the flexural motion of the resonators, adapting a
recently established a... | 1904.07690v2 |
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