publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2018-09-17 | Efimov Enhanced Kondo Effect in Alkaline and Alkaline-Earth Atomic Gas Mixture | Recent experiment has observed Feshbach resonances between alkaline and
alkaline-earth atoms. These Feshbach resonances are insensitive to the nuclear
spin of alkaline-earth atoms. Ultilizing this feature, we propose to take this
system as a candidate to perform quantum simulation of the Kondo effect. An
alkaline atom ... | 1809.06340v1 |
2018-09-26 | Echo trains in pulsed electron spin resonance of a strongly coupled spin ensemble | We report on a novel dynamical phenomenon in electron spin resonance
experiments of phosphorus donors. When strongly coupling the paramagnetic
ensemble to a superconducting lumped element resonator, the coherent exchange
between these two subsystems leads to a train of periodic, self-stimulated
echos after a convention... | 1809.10116v3 |
2020-04-27 | Optically detected magnetic resonance in neutral silicon vacancy centers in diamond via bound exciton states | Neutral silicon vacancy (SiV0) centers in diamond are promising candidates
for quantum networks because of their excellent optical properties and long
spin coherence times. However, spin-dependent fluorescence in such defects has
been elusive due to poor understanding of the excited state fine structure and
limited off... | 2004.12544v2 |
2017-10-02 | Chirp Mixing | In this paper, we develop the theory of chirp mixing. The working principle
is simple, given coupled homonuclear spins with offsets in range [-B, B], we
adiabatically sweep through the resonances. This achieves cross polarization
between the z magnetization of the coupled spins. We repeat this basic
operation many time... | 1710.00488v2 |
2020-11-16 | The multichannel nature of three-body recombination for ultracold $^{39}$K | We develop a full multichannel spin model in momentum space to investigate
three-body recombination of identical alkali-metal atoms colliding in a
magnetic field. The model combines the exact three-atom spin structure and
realistic pairwise atom-atom interactions. By neglecting the interaction
between two particles whe... | 2011.07943v1 |
2021-08-13 | Optical signatures of the coupled spin-mechanics of a levitated magnetic microparticle | We propose a platform that combines the fields of cavity optomagnonics and
levitated optomechanics in order to control and probe the coupled
spin-mechanics of magnetic dielectric particles. We theoretically study the
dynamics of a levitated Faraday-active dielectric microsphere serving as an
optomagnonic cavity, placed... | 2108.06214v1 |
2019-12-27 | Gigantic spin-noise gain enables magnetic resonance spectroscopy of impurity crystals | Spin noise spectroscopy is a method of magnetic resonance widely used,
nowadays, in atomic and semiconductor research. Classical objects of the EPR
spectroscopy - dielectrics with paramagnetic impurities - seemed to be
unsuitable for this technique because of large widths of allowed optical
transitions and, therefore, ... | 1912.12100v1 |
2021-12-06 | Excited-state spectroscopy of spin defects in hexagonal boron nitride | We used optically detected magnetic resonance (ODMR) technique to directly
probe electron-spin resonance transitions in the excited state of
negatively-charged boron vacancy (VB-) defects in hexagonal boron nitride (hBN)
at room temperature. The data showed that the excited state has a zero-field
splitting of ~ 2.1 GHz... | 2112.02912v1 |
2022-05-20 | Quantum Heterodyne Sensing of Nuclear Spins via Double Resonance | Nanoscale nuclear magnetic resonance (NMR) signals can be measured through
hyperfine interaction to paramagnetic electron sensor spins. A heterodyne
approach is widely used to overcome the electron spin lifetime limit in
spectral resolution. It uses a series of modified Hahn echo pulse sequences
applied coherently with... | 2205.10182v1 |
2023-08-29 | Readout using Resonant Tunneling in Silicon Spin Qubits | Spin qubit systems are one of the promising candidates for quantum computing.
The quantum dot (QD) arrays are intensively investigated by many researchers.
Because the energy-difference between the up-spin and down-spin states is very
small, the detection of the qubit state is of prime importance in this field.
Moreove... | 2308.15015v1 |
1998-11-27 | Are the production and decay of a resonance always independent? | The widely accepted assumption that the decay of a resonance proceeds
independently of its production, quantitatively expressed as a factorizing
formula for the differential cross section in the invariant mass of unpolarized
resonance debris, is put under scrutiny. It is shown that the factorization is
always valid for... | 9811493v1 |
2010-10-05 | Lindblad resonance torques in relativistic discs: II. Computation of resonance strengths | We present a fully relativistic computation of the torques due to Lindblad
resonances from perturbers on circular, equatorial orbits on discs around
Schwarzschild and Kerr black holes. The computation proceeds by establishing a
relation between the Lindblad torques and the gravitational waveforms emitted
by the perturb... | 1010.0759v2 |
2011-07-28 | Discovery in Drell-Yan Processes at the LHC | We study the Drell-Yan process mediated by a new bosonic resonance at the
LHC. The bosons of spin-0, 1, and 2 with the most general leading-order
couplings to Standard Model fermions and gluons are considered, which provide a
model-independent formulation for future exploration of the resonance
properties, such as its ... | 1107.5830v1 |
2011-10-18 | Signatures of low-scale string models at the LHC | Low-scale string models, in which the string scale M_s is of the order of TeV
with large extra dimensions, can solve the problems of scale hierarchy and
non-renormalizable quantum gravity in the standard model. String excited states
of the standard model particles are possibly observed as resonances in the
dijet invari... | 1110.3976v4 |
2012-07-04 | Bandwidth-Limited Control and Ringdown Suppression in High-Q Resonators | We describe how the transient behavior of a tuned and matched resonator
circuit and a ringdown suppression pulse may be integrated into an optimal
control theory (OCT) pulse-design algorithm to derive control sequences with
limited ringdown that perform a desired quantum operation in the presence of
resonator distortio... | 1207.1139v2 |
2016-04-28 | Universal Symmetry-Protected Resonances in a Spinful Luttinger Liquid | We study the problem of resonant tunneling through a quantum dot in a spinful
Luttinger liquid. For a range of repulsive interactions, we find that for
symmetric barriers there exist resonances with a universal peak conductance
$2g^* e^2/h$ that are controlled by a non-trivial intermediate fixed point.
This fixed point... | 1604.08280v2 |
2016-05-23 | Electron doping evolution of the neutron spin resonance in NaFe$_{1-x}$Co$_{x}$As | Neutron spin resonance, a collective magnetic excitation coupled to
superconductivity, is one of the most prominent features shared by a broad
family of unconventional superconductors including copper oxides, iron
pnictides, and heavy fermions. In this work, we study the doping evolution of
the resonances in NaFe$_{1-x... | 1605.06890v1 |
2020-11-17 | Dispersive measurement of a semiconductor double quantum dot via 3D integration of a high-impedance TiN resonator | Spins in semiconductor quantum dots are a candidate for cryogenic quantum
processors due to their exceptionally long coherence times. One major challenge
to scaling quantum dot spin qubits is the dense wiring requirements, making it
difficult to envision fabricating large arrays of nearest-neighbor-coupled
qubits neces... | 2011.08759v1 |
2020-05-29 | Electron spin resonance and ferromagnetic resonance spectroscopy in the high-field phase of the van der Waals magnet CrCl$_3$ | We report a comprehensive high-field/high-frequency electron spin resonance
(ESR) study on single crystals of the van der Waals magnet CrCl$_3$. This
material, although being known for quite a while, has received recent
significant attention in a context of the use of van der Waals magnets in novel
spintronic devices. ... | 2005.14559v1 |
2023-09-28 | Constraining Ultralight Dark Matter through an Accelerated Resonant Search | Experiments aimed at detecting ultralight dark matter typically rely on
resonant effects, which are sensitive to the dark matter mass that matches the
resonance frequency. In this study, we investigate the nucleon couplings of
ultralight axion dark matter using a magnetometer operating in a nuclear
magnetic resonance (... | 2309.16600v1 |
2020-12-12 | Ultrafast spin-currents and charge conversion at 3d-5d interfaces probed by time-domain terahertz spectroscopy | Spintronic structures are extensively investigated for their spin orbit
torque properties, required for magnetic commutation functionalities. Current
progress in these materials is dependent on the interface engineering for the
optimization of spin transmission. Here, we advance the analysis of ultrafast
spin-charge co... | 2012.06900v1 |
1998-11-23 | Spin-Wave Excitations of Half-Filled Kondo Lattice Model | The spin excitations in the antiferromagnetic phase of half-filled Kondo
lattice model are studied by means of the decoupling approximation for spin
Green's function. The spin-wave spectrum is calculated as a function of Kondo
coupling, and this is used to calculate the thermodynamic quantities at low
temperatures. The... | 9811316v1 |
2000-11-28 | Spin wave dispersion softening in the ferromagnetic Kondo lattice model for manganites | Spin dynamics is calculated in the ferromagnetic (FM) state of the
generalized Kondo lattice model taking into account strong on-site correlations
between e_g electrons and antiferromagnetic (AFM) exchange among t_{2g} spins.
Our study suggests that competing FM double-exchange and AFM super-exchange
interaction lead t... | 0011464v1 |
2005-06-04 | Soliton solution of continuum magnetization-equation in conducting ferromagnet with a spin-polarized current | Exact soliton solutions of a modified Landau-Lifshitz equation for the
magnetization of conducting ferromagnet in the presence of a spin-polarized
current are obtained by means of inverse scattering transformation. From the
analytical solution effects of spin-current on the frequency, wave number, and
dispersion law of... | 0506103v1 |
2005-11-09 | Current driven magnetization dynamics in helical spin density waves | A mechanism is proposed for manipulating the magnetic state of a helical spin
density wave using a current. In this paper, we show that a current through a
bulk system with a helical spin density wave induces a spin transfer torque,
giving rise to a rotation of the order parameter.The use of spin transfer
torque to man... | 0511224v2 |
2006-01-22 | Thermodynamic properties of the ferrimagnetic spin chains in the presence of a magnetic field | We have implemented three approaches to describe the thermodynamic properties
of ferrimagnetic ($S=5/2, s=2$) spin chains. The application of cumulant
expansion has been generalized to the ferrimagnetic chain in the presence of an
external magnetic field. Using cumulants, we have obtained the field dependent
effective ... | 0601494v1 |
2006-02-18 | Spin waves in quasi-equilibrium spin systems | Using the Landau Fermi liquid theory we have discovered a new regime for the
propagation of spin waves in a quasi-equilibrium spin systems. We have
determined the dispersion relation for the transverse spin waves and found that
one of the modes is gapless. The gapless mode corresponds to the precessional
mode of the ma... | 0602435v1 |
2006-03-03 | Spin-flop transitions and spin-wave gaps in La_2CuO_4 | We study the spin-wave spectrum and the spin-flop transitions in La_2CuO_4 in
a uniform magnetic field at zero temperature. Using the non-linear sigma-model,
we show that a field applied along the orthorhombic b direction leads to a
two-step rotation of the staggered magnetization, first in the bc and then in
the ac pl... | 0603061v2 |
2007-03-07 | Effective action of the weakly doped t-J model and spin-wave excitations in the spin-glass phase of La_{2-x}Sr_xCuO_4 | We derive the low-energy effective field theory of the extended t-J model in
the regime of light doping. The action includes a previously unknown Berry
phase term, which is discussed in detail. We use this effective field theory to
calculate spin-wave excitations in the disordered spin spiral state of
La_{2-x}Sr_xCuO_4... | 0703172v1 |
2008-02-29 | Numerical Relativity meets Data Analysis: Spinning Binary Black Hole Case | We present a study of the gravitational waveforms from a series of spinning,
equal-mass black hole binaries focusing on the harmonic content of the waves
and the contribution of the individual harmonics to the signal-to-noise ratio.
The gravitational waves were produced from two series of evolutions with black
holes of... | 0802.4427v1 |
2010-11-16 | Photon spin operator and Pauli matrix | Any polarization vector of a plane wave can be decomposed into a pair of
mutually orthogonal base vectors, known as a polarization basis. Regarding this
decomposition as a quasi-unitary transformation from a three-component vector
to a corresponding two-component spinor, one is led to a representation
formalism for the... | 1011.3608v1 |
2012-01-13 | Does a Surface Polariton Have Spin? | We consider a p-polarized surface electromagnetic wave (a classical surface
polariton) at the interface between the vacuum and a metal or left-handed
medium. We show that the evanescent electromagnetic waves forming the surface
polariton inevitably possess a backward spin energy flow, which, together with
a superlumina... | 1201.2746v3 |
2012-10-09 | Spin Wave Excitations in AFe$_{1.5}$Se$_2$ (A=K, Tl): Analytical Study | We have analytically solved the spin wave excitations for the intercalated
ternary iron-selenide AFe$_{1.5}$Se$_2$ (A=K, Tl) in the $4\times 2$ collinear
antiferromagnetic order. It is found that there are one acoustic branch
(gapless Goldstone mode) and two gapful optical branches of spin wave
excitations with each in... | 1210.2668v1 |
2012-11-30 | Paramagnetic spin excitations in insulating Rb$_{0.8}$Fe$_{1.6}$Se$_2$ | We use neutron scattering to study temperature dependent spin excitations in
insulating antiferromagnetic (AF) Rb$_{0.8}$Fe$_{1.6}$Se$_2$. In the
low-temperature AF state, spin waves can be accurately described by a local
moment Heisenberg Hamiltonian. On warming to around the Neel temperature of
T_N=500$ K, low-energy... | 1211.7328v1 |
2014-01-06 | Order by Disorder Spin Wave Gap in the XY Pyrochlore Magnet Er2Ti2O7 | The recent determination of a robust spin Hamiltonian for the
anti-ferromagnetic XY pyrochlore Er2Ti2O7 reveals a most convincing case of the
"order by quantum disorder" (ObQD) mechanism for ground state selection. This
mechanism relies on quantum fluctuations to remove an accidental symmetry of
the magnetic ground sta... | 1401.1176v2 |
2014-03-12 | Crossover from spin-waves to diffusive spin excitations in underdoped Ba(Fe$_{1-x}$Co$_{x}$)$_{2}$As$_{2}$ | Using inelastic neutron scattering, we show that the onset of
superconductivity in underdoped Ba(Fe$_{1-x}$Co$_{x}$)$_{2}$As$_{2}$ coincides
with a crossover from well-defined spin waves to overdamped and diffusive spin
excitations. This crossover occurs despite the presence of long-range stripe
antiferromagnetic order... | 1403.2793v1 |
2014-04-03 | Spin liquid phase in the semiclassical theory of the Heisenberg model on an anisotropic triangular lattice with ring exchange | We investigate the effect of ring-exchange on the ground-state properties and
magnetic excitations of the $S = 1/2$ Heisenberg model on the anisotropic
triangular lattice with ring-exchange at $T = 0$ using linear spin-wave theory.
Classically, we find stable N\'{e}el, spiral and collinear magnetically ordered
phases. ... | 1404.0769v1 |
2016-07-03 | Spin waves and magnetic exchange interactions in the spin ladder compound RbFe$_2$Se$_3$ | We report an inelastic neutron scattering study of the spin waves of the
one-dimensional antiferromagnetic spin ladder compound RbFe$_2$Se$_3$. The
results reveal that the products, $SJ$'s, of the spin $S$ and the magnetic
exchange interactions $J$'s along the antiferromagnetic (leg) direction and the
ferromagnetic (ru... | 1607.00639v1 |
2018-01-10 | Spin dynamics and Andreev-Bashkin effect in mixtures of one-dimensional Bose gases | We investigate the propagation of spin waves in two-component mixtures of
one-dimensional Bose gases interacting through repulsive contact potentials. By
using quantum Monte Carlo methods we calculate static ground-state properties,
such as the spin susceptibility and the spin structure factor, as a function of
both th... | 1801.03446v2 |
2018-02-05 | Micromagnetic view on ultrafast magnon generation by femtosecond spin current pulses | In this Article we discuss a micromagnetic modelling approach to describe the
ultrafast spin-transfer torque excitation of coherent and incoherent magnons on
the nanoscale. Implementing the action of a femtosecond spin current pulse
entering an orthogonally magnetized thin ferromagnetic film, we reproduce
recent experi... | 1802.01305v1 |
2021-04-22 | Spin orbit torque nano-oscillators by dipole field-localized spin wave modes | We demonstrate a high-quality spin orbit torque nano-oscillator comprised of
spin wave modes confined by the magnetic field by the strongly inhomogeneous
dipole field of a nearby micromagnet. This approach enables variable spatial
confinement and systematic tuning of magnon spectrum and spectral separations
for studyin... | 2104.10838v3 |
2019-04-22 | An overview of the gravitational spin Hall effect | In General Relativity, the propagation of electromagnetic waves is usually
described by the vacuum Maxwell's equations on a fixed curved background. In
the limit of infinitely high frequencies, electromagnetic waves can be
localized as point particles, following null geodesics. However, at finite
frequencies, electroma... | 1904.09963v1 |
2019-09-18 | Micromagnetic Modeling of Telegraphic Mode Jumping in Microwave Spin Torque Oscillators | The time domain stability of microwave spin torque oscillators (STOs) has
been investigated by systematic micromagnetic simulations. A model based on
internal spin wave reflection at grain boundaries with reduced exchange
coupling was implemented and used to study the oscillator under quasi-stable
operating conditions.... | 1909.08431v1 |
2020-10-01 | Spinor wave equation, relativistic condition, and nonlocality of photon spin | The purpose of this paper is to derive the photon spin and to deduce its
properties from a pair of quantum equations for the photon. To this end,
Darwin's equations are reinterpreted so as to meet the need of the quantum
mechanics of the photon. It is found that the photon wavefunction transforms
under Lorentz transfor... | 2010.00241v1 |
2022-02-08 | Spin waves in spin hydrodynamics | The propagation properties of spin degrees of freedom are analyzed in the
framework of relativistic hydrodynamics with spin based on the de Groot--van
Leeuwen--van Weert definitions of the energy-momentum and spin tensors. We
derive the analytical expression for the spin wave velocity for arbitrary
statistics and show ... | 2202.03952v2 |
2022-04-04 | Spin-dependent phenomena at chiral temporal interfaces | Temporally varying electromagnetic media have been extensively investigated
recently to unveil new means for controlling light. However, spin-dependent
phenomena in such media have not been explored thoroughly. Here, we reveal the
existence of spin-dependent phenomena at a temporal interface between chiral
and dielectr... | 2204.01574v3 |
2022-04-27 | Elastic Spin and Orbital Angular Momenta | Motivated by recent theoretical and experimental interest in the spin and
orbital angular momenta of elastic waves, we revisit canonical wave momentum,
spin, and orbital angular momentum in isotropic elastic media. We show that
these quantities are described by simple universal expressions, which differ
from the result... | 2204.13037v3 |
2022-12-05 | Spin wavepackets in the Kagome ferromagnet Fe$_3$Sn$_2$: propagation and precursors | The propagation of spin waves in magnetically ordered systems has emerged as
a potential means to shuttle quantum information over large distances.
Conventionally, the arrival time of a spin wavepacket at a distance, $d$, is
assumed to be determined by its group velocity, $v_g$. He we report
time-resolved optical measu... | 2212.02498v1 |
2023-09-07 | Neutron spin echo is a "quantum tale of two paths'' | We describe an experiment that strongly supports a two-path interferometric
model in which the spin-up and spin-down components of each neutron propagate
coherently along spatially separated parallel paths in a typical neutron spin
echo small angle scattering (SESANS) experiment. Specifically, we show that the
usual se... | 2309.03987v2 |
2023-02-06 | Accurate calculation of gravitational wave memory | Gravitational wave memory is an important prediction of general relativity.
The detection of the gravitational wave memory can be used to test general
relativity and to deduce the property of the gravitational wave source.
Quantitative model is important for such detection and signal interpretation.
Previous works on g... | 2302.02642v1 |
2019-01-30 | Transverse waves in coronal flux tubes with thick boundaries: The effect of longitudinal flows | Observations show that transverse magnetohydrodynamic (MHD) waves and flows
are often simultaneously present in magnetic loops of the solar corona. The
waves are resonantly damped in the Alfv\'en continuum because of plasma and/or
magnetic field nonuniformity across the loop. The resonant damping is relevant
in the con... | 1901.10785v1 |
2014-04-29 | Comprehensive Amplitude Analysis of $γγ\rightarrow π^+π^-, π^0π^0$ and $\overline{K} K$ below 1.5 GeV | In this paper we perform an amplitude analysis of essentially all published
pion and kaon pair production data from two photon collisions below 1.5 GeV.
This includes all the high statistics results from Belle, as well as older data
from Mark II at SLAC, CELLO at DESY, Crystal Ball at SLAC. The purpose of this
analysis... | 1404.7524v2 |
2021-12-31 | Boltzmann Meets Lorentz: A Surrogate Model for Black Hole Echoes | The existence of black hole horizons has not been strictly proven
observationally, and indeed it may not be possible to do so. However,
alternatives may be established by the observation of gravitational wave echoes
that probe possible near-horizon structure. These echoes are proposed to be
generated in exotic compact ... | 2201.00027v1 |
2002-05-23 | Creation of nonlocal spin-entangled electrons via Andreev tunneling, Coulomb blockade and resonant transport | We discuss several scenarios for the creation of nonlocal spin-entangled
electrons which provide a source of electronic Einstein-Podolsky-Rosen (EPR)
pairs. The central idea is to exploit the spin correlations naturally present
in superconductors in form of Cooper pairs. We show that nonlocal
spin-entanglement in form ... | 0205484v1 |
2011-01-04 | Universal Spin Transport in a Strongly Interacting Fermi Gas | Transport of fermions is central in many fields of physics. Electron
transport runs modern technology, defining states of matter such as
superconductors and insulators, and electron spin, rather than charge, is being
explored as a new carrier of information [1]. Neutrino transport energizes
supernova explosions followi... | 1101.0780v1 |
2012-10-09 | Valley-spin blockade and spin resonance in carbon nanotubes | Manipulation and readout of spin qubits in quantum dots made in III-V
materials successfully rely on Pauli blockade that forbids transitions between
spin-triplet and spin-singlet states. Quantum dots in group IV materials have
the advantage of avoiding decoherence from the hyperfine interaction by
purifying them with o... | 1210.2622v1 |
2015-07-28 | Optical Control of Donor Spin Qubits in Silicon | We show how to achieve optical, spin-selective transitions from the ground
state to excited orbital states of group-V donors (P, As, Sb, Bi) in silicon.
We consider two approaches based on either resonant, far-infrared (IR)
transitions of the neutral donor or resonant, near-IR excitonic transitions.
For far-IR light, w... | 1507.07929v3 |
2018-11-02 | Anatomy of electrical signals and dc-voltage lineshape in spin torque ferromagnetic resonance | The electrical detection of spin torque ferromagnetic resonance (st-FMR) is
becoming a popular method for measuring the spin-Hall angle of heavy metals
(HM). However, various sensible analysis on the same material with either the
same or different experimental setups yielded different spin-Hall angles with
large discre... | 1811.00810v1 |
2017-05-03 | Current driven second harmonic domain wall resonance in ferromagnetic metal/ nonmagnetic metal bilayer: a field-free method for spin Hall angle measurements | We study the ac current-driven domain wall motion in bilayer ferromagnetic
metal (FM)/nonmagnetic metal (NM) nanowire. The solution of the modified
Landau-Lifshitz-Gilbert equation including all the spin transfer torques is
used to describe motion of the domain wall in presence of the spin Hall effect.
We show that the... | 1705.01355v5 |
2008-06-23 | Spin-resolved quantum-dot resonance fluorescence | In the quest for physically realizable quantum information science (QIS)
primitives, self-assembled quantum dots (QDs) serve a dual role as sources of
photonic (flying) qubits and traps for electron spin; the prototypical
stationary qubit. Here we demonstrate the first observation of spin-selective,
near background-fre... | 0806.3707v1 |
2021-01-27 | Broad-band spectroscopy of a vanadyl porphyrin: a model electronuclear spin qudit | We explore how to encode more than a qubit in vanadyl porphyrin molecules
hosting a electronic spin 1/2 coupled to a nuclear spin 7/2. The spin
Hamiltonian and its parameters, as well as the spin dynamics, have been
determined via a combination of electron paramagnetic resonance, heat capacity,
magnetization and on-chi... | 2101.11650v1 |
2021-03-17 | Spin injection efficiency at metallic interfaces probed by THz emission spectroscopy | Terahertz (THz) spin-to-charge conversion has become an increasingly
important process for THz pulse generation and as a tool to probe ultrafast
spin interactions at magnetic interfaces. However, its relation to traditional,
steady state, ferromagnetic resonance techniques is poorly understood. Here we
investigate nano... | 2103.09557v1 |
2023-02-28 | Strong-coupling magnetophononics: Self-blocking, phonon-bitriplons, and spin-band engineering | Magnetophononics, the modulation of magnetic interactions by driving
infrared-active lattice excitations, is emerging as a key mechanism for the
ultrafast dynamical control of both semiclassical and quantum spin systems by
coherent light. We demonstrate that, in a quantum magnet with strong
spin-phonon coupling, resona... | 2303.00125v1 |
2023-04-21 | Magnetic properties of a spin-orbit entangled Jeff = 1/2 honeycomb lattice | The interplay between spin-orbit coupling, anisotropic magnetic interaction,
frustration-induced quantum fluctuations and spin correlations can lead to
novel quantum states with exotic excitations in rare-earth-based quantum
magnets. Herein, we present the crystal structure, magnetization, electron spin
resonance (ESR)... | 2304.10890v2 |
2023-07-30 | Spin dynamics in ordered phases of anisotropic triangular-lattice antiferromagnet Cs2CoBr4 | We study spin dynamics of ordered phases of Cs2CoBr4 in a magnetic field
using electron spin resonance (ESR) technique and theoretical analysis. This
material hosts weakly interacting distorted-triangular-lattice planes of
spin-3/2 Co(2+) ions which can be viewed as spin chains coupled by frustrating
interactions. Stro... | 2307.16251v1 |
2024-04-09 | Excited-State Dynamics and Optically Detected Magnetic Resonance of Solid-State Spin Defects from First Principles | Optically detected magnetic resonance (ODMR) is an efficient and reliable
method that enables initialization and readout of spin states through
spin-photon interface. In general, high quantum efficiency and large
spin-dependent photoluminescence (PL) contrast are desirable for reliable
quantum information readout. Howe... | 2404.05917v1 |
1999-07-10 | Spin Tunneling and Phonon-assisted Relaxation in Mn12-acetate | We present a comprehensive theory of the magnetization relaxation in a
Mn12-acetate crystal in the high-temperature regime (T>1 K), which is based on
phonon-assisted spin tunneling induced by quartic magnetic anisotropy and weak
transverse magnetic fields. The overall relaxation rate as function of the
longitudinal mag... | 9907154v2 |
2008-11-10 | Energy-scale phenomenology and pairing via resonant spin-charge motion in FeAs, CuO, heavy-fermion and other exotic superconductors | Muon spin relaxation ($\mu$SR) studies of the "1111" and "122" FeAs systems
have detected static magnetism with variably sized ordered moments in their
parent compounds. The phase diagrams of FeAs, CuO, organic BEDT,
A$_{3}$C$_{60}$ and heavy-fermion systems indicate competition between static
magnetism and superconduc... | 0811.1546v2 |
2011-04-11 | Discriminating Top-Antitop Resonances using Azimuthal Decay Correlations | Top-antitop pairs produced in the decay of a new heavy resonance will exhibit
spin correlations that contain valuable coupling information. When the tops
decay, these correlations imprint themselves on the angular patterns of the
final quarks and leptons. While many approaches to the measurement of top spin
correlation... | 1104.2043v2 |
2017-04-29 | Spin-dependent constraints on blind spots for thermal singlino-higgsino dark matter with(out) light singlets | The LUX experiment has recently set very strong constraints on
spin-independent interactions of WIMP with nuclei. These null results can be
accommodated in NMSSM provided that the effective spin-independent coupling of
the LSP to nucleons is suppressed. We investigate thermal relic abundance of
singlino-higgsino LSP in... | 1705.00227v1 |
2021-05-14 | Fast coherent control of an NV- spin ensemble using a KTaO3 dielectric resonator at cryogenic temperatures | Microwave delivery to samples in a cryogenic environment can pose
experimental challenges such as restricting optical access, space constraints
and heat generation. Moreover, existing solutions that overcome various
experimental restrictions do not necessarily provide a large, homogeneous
oscillating magnetic field ove... | 2105.06781v2 |
2022-11-21 | In-situ amplification of spin echoes within a kinetic inductance parametric amplifier | The use of superconducting micro-resonators in combination with
quantum-limited Josephson parametric amplifiers has in recent years lead to
more than four orders of magnitude improvement in the sensitivity of pulsed
Electron Spin Resonance (ESR) measurements. So far, the microwave resonators
and amplifiers have been de... | 2211.11333v2 |
2023-05-25 | Stability Improvement of Nuclear Magnetic Resonance Gyroscope with Self-Calibrating Parametric Magnetometer | In this paper, we study the stability of nuclear magnetic resonance gyroscope
(NMRG), which employs Xe nuclear spins to measure inertial rotation rate. The
Xe spin polarization is sensed by an in-situ Rb-magnetometer. The
Rb-magnetometer works in a parametric oscillation mode (henceforth referred to
as the Rb parametri... | 2305.15847v1 |
2010-02-09 | Searching for gravitational waves emitted by binaries with spinning components | In this thesis we consider the data analysis problem of detecting
gravitational waves emitted by inspiraling binary systems. Detection of
gravitational waves will open a new window on the Universe enabling direct
detection of systems such as binary black holes for the first time. In the
first Chapter we show how gravit... | 1002.1876v1 |
2023-08-07 | Inhomogeneous high temperature melting and decoupling of charge density waves in spin-triplet superconductor UTe2 | Periodic spatial modulations of the superfluid density, or pair density
waves, have now been widely detected in unconventional superconductors, either
as the primary or the secondary states accompanying charge density waves.
Understanding how these density waves emerge, or conversely get suppressed by
external paramete... | 2308.03721v1 |
2001-10-12 | On Rossby waves and vortices with differential rotation | We present a simplified model for linearized perturbations in a fluid with
both differential rotation and differential vorticity. Without the latter the
model reduces to the classical Shearing Sheet used in the description of spiral
density waves in astrophysical disks. Without the former it reduces to the
$\beta$-plan... | 0110298v1 |
2003-11-17 | Wave damping by MHD turbulence and its effect upon cosmic ray propagation in the ISM | Cosmic rays scatter off magnetic irregularities (Alfven waves) with which
they are resonant, that is waves of wavelength comparable to their gyroradii.
These waves may be generated either by the cosmic rays themselves, if they
stream faster than the Alfven speed, or by sources of MHD turbulence. Waves
excited by stream... | 0311400v1 |
2001-09-25 | Weak magnetohydrodynamic turbulence of magnetized plasma | Weak turbulence of magnetohydrodynamic (MHD) waves in strongly magnetized
plasma is studied when the thermal pressure is less than the magnetic field
pressure. In this situation the main nonlinear mechanism is the resonance
scattering of fast magneto-acoustic and Alfvenic waves on slow magneto-acoustic
waves. As a resu... | 0109066v1 |
2011-07-15 | Adiabatic nonlinear waves with trapped particles: I. General formalism | A Lagrangian formalism is developed for a general nondissipative
quasiperiodic nonlinear wave with trapped particles in collisionless plasma.
The adiabatic time-averaged Lagrangian density $\mcc{L}$ is expressed in terms
of the single-particle oscillation-center Hamiltonians; once those are found,
the complete set of g... | 1107.3071v2 |
2011-07-23 | Schrodinger's Hat: Electromagnetic, acoustic and quantum amplifiers via transformation optics | The advent of transformation optics and metamaterials has made possible
devices producing extreme effects on wave propagation. Here we give theoretical
designs for devices, Schr\"odinger hats, acting as invisible concentrators of
waves. These exist for any wave phenomenon modeled by either the Helmholtz or
Schr\"odinge... | 1107.4685v1 |
2013-12-23 | Tunable lattice Induced Opacity in atom-lattice interaction | A lattice-induced opacity is identified in the scattering process of a
normally-incident matter wave from a two dimensional lattice of atoms. This
system can be treated as an analogue of a confinement induced resonance.
Specifically by modifying the s-wave scattering length between atoms in the
incident matter wave and... | 1312.6666v1 |
2014-04-08 | Slow-light Airy wave packets and their active control via electromagnetically induced transparency | We propose a scheme to generate (3+1)-dimensional slow-light Airy wave
packets in a resonant $\Lambda$-type three-level atomic gas via
electromagnetically induced transparency. We show that in the absence of
dispersion the Airy wave packets formed by a probe field consist of two Airy
wave packets accelerated in transve... | 1404.2021v1 |
2015-03-08 | Elastic Waves Scattering without Conversion in Metamaterials with Simultaneous Zero Indices for Longitudinal and Transverse waves | We theoretically investigate elastic waves propagating in metamaterials with
simultaneous zero indices for both the longitudinal and transverse waves. With
scattering objects (here cylinders) present in the metamaterials slabs, while
the elastic waves can mostly transmit through the metamaterials slabs
perfectly, exhib... | 1503.02270v2 |
2015-10-27 | Travelling wave solutions of multisymplectic discretizations of semi-linear wave equations | How well do multisymplectic discretisations preserve travelling wave
solutions? To answer this question, the 5-point central difference scheme is
applied to the semi-linear wave equation. A travelling wave ansatz leads to an
ordinary difference equation, whose solutions correspond to the numerical
scheme and can be com... | 1510.07765v1 |
2016-07-04 | Corrugation of relativistic magnetized shock waves | As a shock front interacts with turbulence, it develops corrugation which
induces outgoing wave modes in the downstream plasma. For a fast shock wave,
the incoming wave modes can either be fast magnetosonic waves originating from
downstream, outrunning the shock, or eigenmodes of the upstream plasma drifting
through th... | 1607.00768v1 |
2016-07-24 | Nanoptera in a Period-2 Toda Chain | We study asymptotic solutions to a singularly-perturbed, period-2 Toda
lattice and use exponential asymptotics to examine `nanoptera', which are
nonlocal solitary waves with constant-amplitude, exponentially small wave
trains. With this approach, we isolate the exponentially small,
constant-amplitude waves, and we eluc... | 1607.07065v2 |
2017-09-19 | Dominant Resonance in Parametric Subharmonic Instability of Internal Waves | Parametric Subharmonic Instability (PSI) is one of the most important
mechanisms that transfer energy from tidally-generated long internal waves to
short steep waves. Breaking of these short waves results in diapycnal mixing
through which oceanic abyssal stratification is maintained. It has long been
believed that PSI ... | 1709.06250v2 |
2018-09-06 | Confinement effects on gravity-capillary wave turbulence | The statistical properties of a large number of weakly nonlinear waves can be
described in the framework of the Weak Turbulence Theory. The theory is based
on the hypothesis of an asymptotically large system. In experiments, the
systems have a finite size and the predictions of the theory may not apply
because of the p... | 1809.01850v1 |
2018-09-13 | Scattering of scalar, electromagnetic and gravitational waves from binary systems | The direct detection of gravitational waves crowns decades of efforts in the
modelling of sources and of increasing detectors' sensitivity. With future
third-generation Earth-based detectors or space-based observatories,
gravitational-wave astronomy will be at its full bloom. Previously
brushed-aside questions on envir... | 1809.05108v1 |
2018-12-03 | A piezo-metastructure with bistable circuit shunts for adaptive nonreciprocal wave transmission | In this paper, we present a piezo-metastructure shunted with bistable
circuits to achieve adaptive nonreciprocal elastic wave transmission. Static
properties of the bistable circuit are first investigated, followed by
numerical investigation of wave transmission characteristics on the nonlinear
piezo-metastructure. Bot... | 1812.00517v1 |
2019-03-07 | Three-wave interactions in magnetized warm-fluid plasmas: general theory with evaluable coupling coefficient | Resonant three-wave coupling is an important mechanism via which waves
interact in a nonlinear medium. When the medium is a magnetized warm-fluid
plasma, a previously-unknown formula for the coupling coefficients is derived
by solving the fluid-Maxwell's equations to second order using multiscale
perturbative expansion... | 1903.02745v1 |
2021-08-20 | Direct Evidence of a Dual Cascade in Gravitational Wave Turbulence | We present the first direct numerical simulation of gravitational wave
turbulence. General relativity equations are solved numerically in a periodic
box with a diagonal metric tensor depending on two space coordinates only,
$g_{ij} \equiv g_{ii}(x,y,t) \delta_{ij}$, and with an additional small-scale
dissipative term. ... | 2108.09158v1 |
2019-07-08 | Perfect conversion of a TM surface-wave into a TM leaky-wave by an isotropic periodic metasurface printed on a grounded dielectric slab | This paper presents an exact solution for a perfect conversion of a
TM-polarized surface wave (SW) into a TM-polarized leaky-wave (LW) using a
reciprocal and lossless penetrable metasurface (MTS) characterized by a scalar
sheet impedance, located on a grounded slab. In contrast to known realizations
of leaky-wave anten... | 1907.03646v2 |
2020-12-03 | Low-dimensional chaos in the single wave model for self-consistent wave-particle Hamiltonian | We analyze nonlinear aspects of the self-consistent wave-particle interaction
using Hamiltonian dynamics in the single wave model, where the wave is modified
due to the particle dynamics. This interaction plays an important role in the
emergence of plasma instabilities and turbulence. The simplest case, where one
parti... | 2012.02139v5 |
2020-12-24 | Experimental self-generation of axisymmetric internal wave super-harmonics | In this paper, we present an experimental study of weakly non-linear
interaction of axisymmetric internal gravity waves in a resonant cavity,
supported by theoretical considerations. Contrary to plane waves in Cartesian
coordinates, for which self-interacting terms are null in a linear
stratifiation, the non-linear sel... | 2012.13047v1 |
2021-11-29 | Observations of rapidly growing whistler waves in front of space plasma shock | Whistler mode wave is a fundamental perturbation of electromagnetic fields
and plasmas in various environments including planetary space, laboratory and
astrophysics. The origin and evolution of the waves are a long-standing
question due to the limited instrumental capability in resolving highly
variable plasma and ele... | 2111.14832v1 |
2023-01-20 | Alfvén wave experiments with liquid rubidium in a pulsed magnetic field | Magnetic fields are key ingredients for heating the solar corona to
temperatures of several million Kelvin. A particularly important region with
respect to this is the so-called magnetic canopy below the corona, where sound
and Alfv\'en waves have roughly the same speed and can, therefore, easily
transform into each ot... | 2301.08463v1 |
2006-12-01 | Tidal dissipation within hot Jupiters: a new appraisal | Eccentricity or obliquity tides have been proposed as the missing energy
source that may explain the anomalously large radius of some transiting ``hot
Jupiters''. To maintain a non-zero and large obliquity, it was argued that the
planets can be locked in a Cassini state, i.e. a resonance between spin and
orbital preces... | 0612044v1 |
2002-03-05 | Study On Planar Whispering Gallery Dielectric Resonators. II. A Multiple-Band Device | The basic theory underlying the realization of simple multiple-band
non-homogeneous dielectric resonators, whose spectral response is the overlap
of single-resonator frequency bands, is developed exploiting a general approach
discussed in the previous companion paper. The limit frequencies of the
proposed devices, give... | 0203010v1 |
2000-11-09 | Dynamical analysis of the buildup process near resonance | The time evolution of the buildup process inside a double-barrier system for
off-resonance incidence energies is studied by considering the analytic
solution of the time dependent Schr\"{o}dinger equation with cutoff plane wave
initial conditions. We show that the buildup process exhibits invariances under
arbitrary ch... | 0011032v1 |
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