publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2014-11-28 | Magnetic field tuning of exciton polaritons in a semiconductor microcavity | We detail the influence of a magnetic field on exciton-polaritons inside a
semiconductor microcavity. Magnetic field can be used as a tuning parameter for
exciton and photon resonances. We discuss the change of the exciton energy, the
oscillator strength and redistribution of the polariton density along the
dispersion ... | 1411.7875v1 |
2015-02-03 | Exploiting the Symmetries of P and S wave for B --> K^* mu^+ mu^- | After summarizing the current theoretical status of the four-body decay B -->
K^*(--> K pi) mu^+ mu^-, we apply the formalism of spin-symmetries to the full
angular distribution, including the S-wave part involving a broad scalar
resonance K0^*. While we recover in the P-wave sector the known relation
between the angul... | 1502.00920v2 |
2015-04-17 | Perspectives on gravity-induced radiative processes in astrophysics | Single-vertex Feynman diagrams represent the dominant contribution to
physical processes, but are frequently forbidden kinematically. This is changed
when the particles involved propagate in a gravitational background and acquire
an effective mass. Procedures are introduced that allow the calculation of
lowest order di... | 1504.04610v1 |
2016-04-21 | All-in all-out magnetic order and propagating spin-waves in Sm2Ir2O7 | Using resonant magnetic x-ray scattering we address the unresolved nature of
the magnetic groundstate and the low-energy effective Hamiltonian of
Sm$_2$Ir$_2$O$_7$, a prototypical pyrochlore iridate with a finite temperature
metal-insulator transition. Through a combination of elastic and inelastic
measurements, we sho... | 1604.06401v1 |
2016-06-24 | Two-dimensional electron gas in the regime of strong light-matter coupling: Dynamical conductivity and all-optical measurements of Rashba and Dresselhaus coupling | A nonperturbative interaction of an electronic system with a laser field can
substantially modify its physical properties. In particular, in two-dimensional
(2D) materials with a lack of inversion symmetry, the achievement of a regime
of strong light-matter coupling allows direct optical tuning of the strength of
the R... | 1606.07663v2 |
2016-07-05 | Optical activity of quantum wells | We report on the observation of optical activity of quantum wells resulting
in the conversion of the light polarization state controlled by the light
propagation direction. The polarization conversion is detected in reflection
measurements. We show that a pure $s$-polarized light incident on a quantum
well is reflected... | 1607.01226v1 |
2016-09-03 | Deep data mining in a real space: Separation of intertwined electronic responses in a lightly-doped BaFe2As2 | Electronic interactions present in material compositions close to the
superconducting dome play a key role in the manifestation of high-Tc
superconductivity. In many correlated electron systems, however, the parent or
underdoped states exhibit strongly inhomogeneous electronic landscape at the
nanoscale that may be ass... | 1609.00846v1 |
2016-10-28 | The microscopic structure of $πNN$, $πNΔ$ and $πΔΔ$ vertices in a hybrid constituent quark model | We present a microscopic description of the strong $\pi NN$, $\pi N\Delta$
and $\pi\Delta\Delta$ vertices. Our starting point is a constituent-quark model
supplemented by an additional $3q\pi$ non-valence component. In the spirit of
chiral constituent-quark models, quarks are allowed to emit and reabsorb a
pion. This m... | 1610.09242v1 |
2017-12-05 | Exact solution of a two-species quantum dimer model for pseudogap metals | We present an exact ground state solution of a quantum dimer model introduced
in Ref.[1], which features ordinary bosonic spin-singlet dimers as well as
fermionic dimers that can be viewed as bound states of spinons and holons in a
hole-doped resonating valence bond liquid. Interestingly, this model captures
several es... | 1712.01854v2 |
2018-06-19 | Deterministic free-space source of single photons using Rydberg atoms | We propose an efficient free-space scheme to create single photons in a
well-defined spatiotemporal mode. To that end, we first prepare a single source
atom in an excited Rydberg state. The source atom interacts with a large
ensemble of ground-state atoms via a laser-mediated dipole-dipole exchange
interaction. Using a... | 1806.07094v3 |
2018-11-04 | Role of gallium diffusion in the formation of a magnetically dead layer at Y3Fe5O12 / Gd3Ga5O12 epitaxial interface | We have clarified the origin of magnetically dead interface layer formed in
yttrium iron garnet (YIG) films grown at above 700{\deg}C onto gadolinium
gallium garnet (GGG) substrate by means of laser molecular beam epitaxy. The
diffusion-assisted formation of a Ga-rich region at the YIG / GGG interface is
demonstrated b... | 1811.01321v2 |
2019-11-03 | Hybrid spin-superconducting quantum circuit mediated by deterministically prepared entangled photonic states | In hybrid quantum systems a controllable coupling can be obtained by
mediating the interactions with dynamically introduced photons. We propose a
hybrid quantum architecture consisting of two nitrogen vacancy center ensembles
coupled to a tunable flux qubit; that are contained on the transmission line of
a multimode no... | 1911.00869v1 |
2014-06-10 | Resonantly enhanced kicks from equatorial small mass-ratio inspirals | We calculate the kick generated by an eccentric black hole binary inspiral as
it evolves through a resonant orbital configuration where the precession of the
system temporarily halts. As a result, the effects of the asymmetric emission
of gravitational waves build up coherently over a large number of orbits. Our
result... | 1406.2594v2 |
2020-08-06 | Non-perturbative effects in corrections to quantum master equation arising in Bogolubov-van Hove limit | We study the perturbative corrections to the {
Gorini-Kossakowski-Sudarshan-Lindblad equation which arises in the weak
coupling limit}. The spin-boson model in the rotating wave approximation at
zero temperature is considered. We show that the perturbative part of the
density matrix satisfies the time-independent
Gorin... | 2008.02820v6 |
2016-12-07 | Gilbert damping of magnetostatic modes in a yttrium iron garnet sphere | The magnetostatic mode (MSM) spectrum of a 300$\mu$m diameter single
crystalline sphere of yttrium iron garnet is investigated using broadband
ferromagnetic resonance (FMR). The individual MSMs are identified via their
characteristic dispersion relations and the corresponding mode number tuples
$(nmr)$ are assigned. Ta... | 1612.02360v1 |
2016-12-08 | Stable Collective Dynamics of Two-Level Systems Coupled by Dipole Interactions | We study the dynamics of a set of two-level systems coupled by dipolar
interactions under a resonant external Rabi drive. The two-level systems are
prepared initially in a coherent product state, and we ask how the
non-equilibrium conditions caused by the drive affect this coherence. We study
the full non-linear dynami... | 1612.02595v2 |
2017-10-06 | On-demand semiconductor source of 780 nm single photons with controlled temporal wave packets | We report on a fast, bandwidth-tunable single-photon source based on an
epitaxial GaAs quantum dot. Exploiting spontaneous spin-flip Raman transitions,
single photons at $780\,$nm are generated on-demand with tailored temporal
profiles of durations exceeding the intrinsic quantum dot lifetime by up to
three orders of m... | 1710.02490v1 |
2018-04-08 | Optical cooling of magnons | Inelastic scattering of light by spin waves generates an energy flow between
the light and magnetization fields, a process that can be enhanced and
controlled by concentrating the light in magneto-optical resonators. Here, we
model the cooling of a sphere made of a magnetic insulator, such as yttrium
iron garnet (YIG),... | 1804.02683v1 |
2018-04-13 | Gauge Assisted Quadratic Gravity: A Framework for UV Complete Quantum Gravity | We discuss a variation of quadratic gravity in which the gravitational
interaction remains weakly coupled at all energies, but is assisted by a
Yang-Mills gauge theory which becomes strong at the Planck scale. The
Yang-Mills interaction is used to induce the usual Einstein-Hilbert term, which
was taken to be small or a... | 1804.04980v1 |
2019-03-18 | Thermal Hall Effect Induced by Magnon-Phonon Interactions | We propose a new mechanism for the thermal Hall effect in exchange spin-wave
systems, which is induced by the magnon-phonon interaction. Using symmetry
arguments, we first show that this effect is quite general, and exists whenever
the mirror symmetry in the direction of the magnetization is broken. We then
demonstrate... | 1903.07702v2 |
2020-09-24 | Magnetic anisotropy and exchange paths for octa- and tetrahedrally coordinated Mn$^{2+}$ ions in the honeycomb multiferroic Mn$_2$Mo$_3$O$_8$ | We investigated the static and dynamic magnetic properties of the polar
ferrimagnet Mn$_2$Mo$_3$O$_8$ in three magnetically ordered phases via
magnetization, magnetic torque, and THz absorption spectroscopy measurements.
The observed magnetic field dependence of the spin-wave resonances, including
Brillouin zone-center... | 2009.11683v1 |
2021-02-09 | Quantum dynamics of Mn$^{2+}$ in dimethylammonium magnesium formate | Dimethylammonium magnesium formate, [(CH$_3$)$_2$NH$_2$][Mg(HCOO)$_3$] or
DMAMgF, is a model to study high temperature hybrid perovskite-like
dielectrics. This compound displays a phase transition from para to
ferroelectric at about 260~K. Using multifrequency electron spin resonance in
continuous wave and pulsed modes... | 2102.04792v1 |
2021-04-20 | The effective radius for production of baryon-antibaryon pairs from $ψ$ decays | By using the covariant L-S Scheme for the partial wave analysis, we deduce
the ratios between the S-wave and D-wave contributions from the recent data of
$\psi(1^-) \to B_8(1/2^+) \bar{B}_8(1/2^-)$ from the BESIII collaboration. For
the $J/\psi\to \Lambda\bar{\Lambda}$ and $J/\psi(\psi(2S))\to
\Sigma^{+}\bar{\Sigma}^{-... | 2104.09908v1 |
2021-04-26 | A unified theory of spin and charge excitations in high-$T_c$ cuprates: Quantitative comparison with experiment and interpretation | We provide a unified interpretation of both paramagnon and plasmon modes in
high-$T_c$ copper-oxides, and verify it quantitatively against available
resonant inelastic $x$-ray scattering (RIXS) data across the hole-doped phase
diagram. Three-dimensional extended Hubbard model, with included long-range
Coulomb interacti... | 2104.12812v1 |
2021-10-05 | The impact of defects on excitations in two-dimensional bipartite uniaxial antiferromagnet insulators | We address scatterings of spin waves off uncorrelated defects in
two-dimensional (2D) easy-axis antiferromagnet (AFM) insulators. Although an
onsite magnetic anisotropy leads gapped Goldstone modes, such that a long range
(AFM) order can be established in 2D, lattice imperfections tend to weaken, and
eventually destroy... | 2110.02045v3 |
2016-11-02 | Preservation of quantum correlations in femtosecond light pulse train within atomic ensemble | In this paper, we examined a possibility of preservation of a substantially
multimode radiation in a single cell of quantum memory. As a light source we
considered a synchronously pumped optical parametric oscillator (SPOPO). As it
was shown in [1-4], SPOPO radiation has a large number of the correlated modes
making it... | 1611.00703v1 |
2017-02-19 | Model-independent partial wave analysis using a massively-parallel fitting framework | The functionality of GooFit, a GPU-friendly framework for doing
maximum-likelihood fits, has been extended to extract model-independent S-wave
amplitudes in three-body decays such as $D^+ \to h^+h^+h^-$. A full amplitude
analysis is done where the magnitudes and phases of the S-wave amplitudes are
anchored at a finite ... | 1703.03284v1 |
2017-03-23 | Antireflective photonic structure for coherent nonlinear spectroscopy of single magnetic quantum dots | This work presents epitaxial growth and optical spectroscopy of CdTe quantum
dots (QDs) in (Cd,Zn,Mg)Te barriers placed on the top of (Cd,Zn,Mg)Te
distributed Bragg reflector. The formed photonic mode in our half-cavity
structure permits to enhance the local excitation intensity and extraction
efficiency of the QD phot... | 1703.08062v1 |
2019-01-23 | Characterization of photoexcited states in the half-filled one-dimensional extended Hubbard model assisted by machine learning | Photoinduced nonequilibrium states can provide new insight into dynamical
properties of strongly correlated electron systems. One of the typical and
extensively studied systems is the half-filled one-dimensional extended Hubbard
model (1DEHM). Here, we propose that the supervised machine learning (ML) can
provide usefu... | 1901.07900v3 |
2019-04-17 | Power narrowing: Counteracting Doppler broadening in two-color transitions | Doppler broadening in thermal ensembles degrades the absorption cross-section
and the coherence time of collective excitations. In two photon transitions, it
is common to assume that this problem becomes worse with larger wavelength
mismatch. Here we identify an opposite mechanism, where such wavelength
mismatch leads ... | 1904.08529v2 |
2019-07-19 | Enhanced E1 transition between weakly-bound excited states in the nucleus 27Ne | Inspired by the recently-reported strong electric-dipole (E1) transition
between the weakly-bound first and second excited states, 3/2- at 765 keV and
1/2+ at 885 keV, in the nucleus 27Ne, the E1 transition is estimated in a model
by properly taking into account the effect of both deformation and weakly-bound
neutrons.... | 1907.08460v1 |
2019-09-12 | Magnetostrictively induced stationary entanglement between two microwave fields | We present a scheme to entangle two microwave fields by using the nonlinear
magnetostrictive interaction in a ferrimagnet. The magnetostrictive interaction
enables the coupling between a magnon mode (spin wave) and a mechanical mode in
the ferrimagnet, and the magnon mode simultaneously couples to two microwave
cavity ... | 1909.05936v3 |
2020-06-15 | Anomalous helimagnetic domain shrinkage due to the weakening of Dzyaloshinskii-Moriya interaction in CrAs | CrAs is a well-known helimagnet with the double-helix structure originating
from the competition between the Dzyaloshinskii-Moriya interaction (DMI) and
antiferromagnetic exchange interaction $J$. By resonant soft X-ray scattering
(RSXS), we observe the magnetic peak (0~0~$q_m$) that emerges at the helical
transition w... | 2006.08534v1 |
2020-10-12 | Nonmagnetic-magnetic transition and magnetically ordered structure in SmS | SmS, a prototypical intermediate valence compound, has been studied by
performing high-pressure nuclear magnetic resonance measurements on a
$^{33}$S-enriched sample. The observation of an additional signal below 15-20 K
above a nonmagnetic-magnetic transition pressure $P_{\rm c2} \approx 2$ GPa
gives evidence of a mag... | 2010.05539v2 |
2021-01-26 | Superradiant detection of microscopic optical dipolar interactions | The interaction between light and cold atoms is a complex phenomenon
potentially featuring many-body resonant dipole interactions. A major obstacle
toward exploring these quantum resources of the system is macroscopic light
propagation effects, which not only limit the available time for the
microscopic correlations to... | 2101.10779v2 |
2021-09-29 | Generation of topologically complex three-dimensional electron beams in a plasma photocathode | Laser-triggered ionization injection is a promising way of generating
controllable high-quality electrons in plasma-based acceleration. We show that
ionization injection of electrons into a fully nonlinear plasma wave wake using
a laser pulse comprising of one or more Laguerre-Gaussian modes with
combinations of spin a... | 2109.14566v1 |
2021-12-08 | Elastic $π-N$ scattering in the $I=3/2$ channel | We present our study of $\pi-N$ scattering in the iso-spin $I=3/2$ channel
for the first time at the physical point. The calculation is performed using
$N_f=2+1+1$ flavors of twisted mass fermions with clover improvement at
physical pion mass. We compute energy levels for the rest frame and moving
frames up to a total ... | 2112.04146v1 |
2022-02-24 | Nanodiamonds based optical-fiber quantum probe for magnetic field and biological sensing | Owing to the unique electronic spin properties, the nitrogen-vacancy (NV)
centers hosted in diamond have emerged as a powerful quantum sensor for various
physical parameters and biological species. In this work, a miniature
optical-fiber quantum probe, configured by chemically-modifying nanodiamonds NV
centers on the s... | 2202.11859v2 |
2022-04-05 | Thermodynamic insights into the intricate magnetic phase diagram of EuAl$_{4}$ | The tetragonal intermetallic compound EuAl$_{4}$ hosts an exciting variety of
low temperature phases. In addition to a charge density wave below 140 K, four
ordered magnetic phases are observed below 15.4 K. Recently, a skyrmion phase
was proposed based on Hall effect measurements under a $c$-axis magnetic field.
We pr... | 2204.02319v1 |
2022-07-27 | Polarization-decoupled Flat Displays | Many modern applications like entertainment displays, data encryption,
security, and virtual reality (VR) technology require asymmetric light
manipulation. Symmetric spin-orbit interactions (SOI) apply a limit in
achieving an asymmetrical metahologram. However, different reported asymmetric
SOI's based on propagation a... | 2207.13810v1 |
2022-09-29 | Study of Charmonium(-like) Spectroscopy and Decay at BESIII | The recent results on Charmonium and Charmonium-like states at BESIII are
reviewed, including the observation of $\rm Z_{cs}(3985)$ state, the study of
the new decay modes of $\psi_2(3823)$ state, observation of resonance structure
in $\rm e^+e^- \to \pi^+\pi^-\psi_2(3823)$ process, the study of the $\rm
e^+e^- \to K^+... | 2209.15061v2 |
2022-12-02 | Cavity-mediated coupling of antiferromagnetic spin waves | Coupling of space-separated oscillators is interesting for quantum and
communication technologies. In this work, it is shown that two
antiferromagnetic oscillators placed inside an electromagnetic cavity couple
cooperatively to its terahertz modes and, in effect, hybridized
magnon-polariton modes are formed. This is su... | 2212.01129v1 |
2022-12-11 | Manifestation of the coupling phase in microwave cavity magnonics | The interaction between microwave photons and magnons is well understood and
originates from the Zeeman coupling between spins and a magnetic field.
Interestingly, the magnon/photon interaction is accompanied by a phase factor
which can usually be neglected. However, under the rotating wave approximation,
if two magnon... | 2212.05389v1 |
2023-02-20 | Optimizing the magnon-phonon cooperativity in planar geometries | Optimizing the cooperativity between two distinct particles is an important
feature of quantum information processing. Of particular interest is the
coupling between spin and phonon, which allows for integrated long range
communication between gates operating at GHz frequency. Using local light
scattering, we show that... | 2302.09936v2 |
2024-01-11 | Solid-state continuous time crystal with a built-in clock | Time crystals (TCs) are many-body systems displaying spontaneous breaking of
time translation symmetry. Here, we demonstrate a TC using driven-dissipative
condensates of microcavity exciton-polaritons, spontaneously formed from an
incoherent particle bath. In contrast to other realizations, the TC phases can
be control... | 2401.06246v1 |
2024-02-18 | C. V. Vishveshwara (Vishu) On The Black Hole Trek | With his seminal and pioneering work on the stability of the Schwarzschild
black hole and its interaction with gravitational radiation, Vishu had opened a
new window on black hole astrophysics. One of the interesting results that soon
followed was that "a black hole has no hair", it is entirely specified by the
three p... | 2402.11503v1 |
2024-02-26 | Distinct Optical Excitation Mechanisms of a Coherent Magnon in a van der Waals Antiferromagnet | The control of antiferromagnets with ultrashort optical pulses has emerged as
a prominent field of research. Tailored laser excitation can launch coherent
spin waves at terahertz frequencies, yet a comprehensive description of their
generation mechanisms is still lacking despite extensive efforts. Using
terahertz emiss... | 2402.17041v2 |
2024-03-05 | Incommensurate broken-helix and broken-fanlike states in axion insulator candidate EuIn$_{2}$As$_{2}$ | Zintl phase EuIn$_{2}$As$_{2}$ has garnered growing attention as an axion
insulator candidate, triggered by the identification of a commensurate
double-${\mathbf Q}$ broken-helix state in previous studies, however, its
periodicity and symmetry remain subjects of debate. Here, we perform resonant
x-ray scattering experi... | 2403.03022v1 |
2024-03-26 | A new double-pass type of the optical spring | In detuned optical cavities, the radiation pressure force acting on the
mirrors depends on their displacements. This is equivalent to the rigidity (the
optical spring), inserted between the mirrors. This effect can be used for
optimization of the mechanical susceptibility of probe mirrors in
high-precision force sensor... | 2403.17795v1 |
2011-11-15 | Resonances in Extreme Mass-Ratio Inspirals: Asymptotic and Hyperasymptotic Analysis | An expected source of gravitational waves for future detectors in space are
the inspirals of small compact objects into much more massive black holes.
These sources have the potential to provide a wealth of information about
astronomy and fundamental physics. On short timescales the orbit of the small
object is approxi... | 1111.3605v1 |
2012-02-08 | Coherent, mechanical control of a single electronic spin | The ability to control and manipulate spins via electrical, magnetic and
optical means has generated numerous applications in metrology and quantum
information science in recent years. A promising alternative method for spin
manipulation is the use of mechanical motion, where the oscillation of a
mechanical resonator c... | 1202.1823v1 |
2019-10-24 | Radiative cooling of a spin ensemble | Physical systems reach thermal equilibrium through energy exchange with their
environment, and for spins in solids the relevant environment is almost always
the host lattice in which they sit. However, recent studies motivated by
observations from Purcell showed how coupling to a cavity can become the
dominant form of ... | 1910.11092v1 |
2006-01-27 | Spin-orbit effects on the Larmor dispersion relation in GaAs quantum wells | We have studied the relevance of spin-orbit coupling to the dispersion 00009
relation of the Larmor resonance observed in inelastic light scattering and
electron-spin resonance experiments on GaAs quantum wells. We show that the
spin-orbit interaction, here described by a sum of Dresselhaus and
Bychkov-Rashba terms, co... | 0601635v1 |
2008-05-08 | Electrically driven single electron spin resonance in a slanting Zeeman field | The rapidly rising fields of spintronics and quantum information science have
led to a strong interest in developing the ability to coherently manipulate
electron spins. Electron spin resonance (ESR) is a powerful technique to
manipulate spins that is commonly achieved by applying an oscillating magnetic
field. However... | 0805.1083v1 |
2010-12-23 | Electrical Detection of Coherent Nuclear Spin Oscillations in Phosphorus-Doped Silicon Using Pulsed ENDOR | We demonstrate the electrical detection of pulsed X-band Electron Nuclear
Double Resonance (ENDOR) in phosphorus-doped silicon at 5\,K. A pulse sequence
analogous to Davies ENDOR in conventional electron spin resonance is used to
measure the nuclear spin transition frequencies of the $^{31}$P nuclear spins,
where the $... | 1012.5241v1 |
2013-08-12 | Electron Spin Resonance in Quasi-One-Dimensional Quantum Antiferromagnets: Relevance of Weak Interchain Interactions | We discuss universal features on the electron spin resonance (ESR) of a
temperature-induced Tomonaga-Luttinger liquid phase in a wide class of weakly
coupled $S=1/2$ antiferromagnetic spin chains such as spin ladders, spin tubes
and three-dimensionally coupled spin chains. We show that the ESR linewidth of
various coup... | 1308.2714v2 |
2014-08-25 | Spin-Scattering Rates in Metallic Thin Films Measured by Ferromagnetic Resonance Damping Enhanced by Spin-Pumping | We determined the spin-transport properties of Pd and Pt thin films by
measuring the increase in ferromagnetic resonance damping due to spin-pumping
in ferromagnetic (FM)-nonferromagnetic metal (NM) multilayers with varying NM
thicknesses. The increase in damping with NM thickness depends strongly on both
the spin- and... | 1408.5921v2 |
2016-08-19 | Temperature dependence of the electron spin resonance linewidth in magnetic insulators | We analyze the temperature dependence of the electron spin resonance
linewidth above the critical region in exchange-coupled magnetic insulators.
The focus is on separating the contributions to the linewidth from spin-spin
interactions, spin-one-phonon interactions and spin-two-phonon interactions at
temperatures where... | 1608.05653v2 |
2018-09-28 | Observation of magnetic-field-sweep-direction-dependent dynamic nuclear polarization under periodic optical electron spin pumping | Optical pump-probe techniques are used to generate and measure electron spin
polarization in a gallium arsenide epilayer in which the electron spin
coherence time exceeds the mode-locked laser repetition period. Resonant spin
amplification occurs at magnetic fields at which the electron spin polarization
excited by suc... | 1810.00055v2 |
2012-09-17 | Detecting External Electron Spins Using Nitrogen-Vacancy Centers | Near-surface nitrogen-vacancy (NV) centers have been created in diamond
through low energy implantation of 15N to sense electron spins that are
external to the diamond. By performing double resonance experiments, we have
verified the presence of g=2 spins on a diamond crystal that was subjected to
various surface treat... | 1209.3748v1 |
2019-01-07 | Simultaneous Optical and Electrical Spin-Torque Magnetometry with Stroboscopic Detection of Spin-Precession Phase | Spin-based coherent information processing and encoding utilize the
precession phase of spins in magnetic materials. However, the detection and
manipulation of spin precession phases remain a major challenge for advanced
spintronic functionalities. By using simultaneous electrical and optical
detection, we demonstrate ... | 1901.01923v1 |
2020-06-14 | MoS2 thin-film transistors spin-states, of conduction electrons and vacancies, distinguished by operando electron spin resonance | Transition metal dichalcogenide MoS2 is a two-dimensional material,
attracting much attention for next-generation applications thanks to rich
functionalities stemmed from the crystal structure. Many experimental and
theoretical works have focused on the spin-orbit interaction which couples the
valley and spin degree of... | 2006.07842v1 |
2020-12-25 | Spin-circuit representation of spin-torque ferromagnetic resonance | Spin-torque ferromagnetic resonance (ST-FMR) particularly using magnetic
insulators and heavy metals possessing a giant spin Hall effect (SHE) has
gotten a lot of attention for the development of spintronic devices. To devise
complex functional devices, it is necessary to construct the equivalent
spin-circuit represent... | 2012.13591v1 |
2021-03-10 | Electric-dipole-induced resonance and decoherence of a dressed spin in a quantum dot | Electron spin qubit in a quantum dot has been studied extensively for
scalable quantum information processing over the past two decades. Recently,
high-fidelity and fast single-spin control and strong spin-photon coupling have
been demonstrated using a synthetic spin-orbit coupling created by a
micromagnet. Such strong... | 2103.05817v1 |
2022-08-25 | Spin mixing conductance and spin magnetoresistance of iridate/manganite interface | We present results on experimental studies of spin current, measured under
spin pumping at ferromag-netic resonance in wide frequency band 2-20 GHz for
SrIrO3/La0.7Sr0.3MnO3 heterostructures fabricated by RF magnetron sputtering at
high temperature. The epitaxial growth of the thin film in heterostructure by a
cube-on-... | 2208.12163v1 |
2023-11-02 | Controllable single spin evolution at sub-harmonics of electric dipole spin resonance enhanced by four-level Landau-Zener-St{ü}ckelberg-Majorana interference | Sub-harmonics of electric dipole spin resonance (EDSR) mediated by
Landau-Zener-St{\"u}ckelberg-Majorana (LZSM) tunneling transitions are studied
numerically and analytically in a Zeeman-split four level system with strong
spin-orbit coupling that can be realized, for example, in a GaAs-based double
quantum dot in a si... | 2311.01607v1 |
2004-11-07 | Search for optimal 2D and 3D wave launching configurations for the largest acceleration of charged particles in a magnetized plasma, Resonant Moments Method | Optimal two-dimensional (2D), three-dimensional (3D) wave launching
configurations are proposed for enhanced acceleration of charged particles in
magnetized plasmas. A primary wave is launched obliquely with respect to the
magnetic field and a secondary, low amplitude, wave is launched
perpendicularly. The effect of bo... | 0411075v4 |
2007-07-19 | Characterization of thermalized Fermi-Pasta-Ulam chains | The Fermi-Pasta-Ulam (FPU) chains of particles in \textit{thermal
equilibrium} are studied from both wave-interaction and particle-interaction
points of view. It is shown that, even in a strongly nonlinear regime, the
chain in thermal equilibrium can be effectively described by a system of weakly
interacting \textit{re... | 0707.2830v1 |
2007-10-11 | Super-Reflection in Fluid Discs: Corotation Amplifier, Corotation Resonance, Rossby Waves, and Overstable Modes | In differentially rotating discs with no self-gravity, density waves cannot
propagate around the corotation, where the wave pattern rotation speed equals
the fluid rotation rate. Waves incident upon the corotation barrier may be
super-reflected (commonly referred to as corotation amplifier), but the
reflection can be s... | 0710.2313v3 |
2020-02-09 | Modified Stokes drift due to surface waves and corrugated sea-floor interactions with and without a mean current | In this paper, we show that Stokes drift may be significantly affected when
an incident intermediate or shallow water surface wave travels over a
corrugated sea-floor. The underlying mechanism is Bragg resonance -- reflected
waves generated via nonlinear resonant interactions between an incident wave
and a rippled bott... | 2002.03434v3 |
2007-03-19 | Resonant energy conversion of 3-minute intensity oscillations into Alfven waves in the solar atmosphere | Nonlinear coupling between 3-minute oscillations and Alfven waves in the
solar lower atmosphere is studied. 3-minute oscillations are considered as
acoustic waves trapped in a chromospheric cavity and oscillating along
transversally inhomogeneous vertical magnetic field. It is shown that under the
action of the oscilla... | 0703482v1 |
2002-07-09 | Tollmien-Shlichting and sound waves interaction: general description and nonlinear resonances | The general hydro-thermodynamic system of equations in 2+1 dimensions with
arbitrary equations of state (Taylor series approximation) is split to eigen
modes: Tollmienn-Schlichting (TS) wave and two acoustic ones. A mode definition
is realized via local relation equations, extracted from the linearization of
the genera... | 0207036v1 |
2019-10-27 | Small mass nanopteron traveling waves in mass-in-mass lattices with cubic FPUT potential | The mass-in-mass (MiM) lattice consists of an infinite chain of identical
beads that are both nonlinearly coupled to their nearest neighbors and linearly
coupled to a distinct resonator particle; it serves as a prototypical model of
wave propagation in granular crystals and metamaterials. We study traveling
waves in an... | 1910.12313v1 |
2022-06-11 | Resonant energization of particles by radio AGN | A new mechanism of particle acceleration, based on the resonant interaction
of a classical electromagnetic wave (EM) with a quantum wave (associated with a
relativistic particle), is explored.
In a model illustrative calculation, we study the fate of a Klein Gordon wave
subjected to the intense radio frequency waves ... | 2206.05429v1 |
2023-01-01 | Whitham Shocks and Resonant Dispersive Shock Waves Governed by the Higher Order Korteweg-de Vries Equation | The addition of higher order asymptotic corrections to the Korteweg-de Vries
equation results in the extended Korteweg-de Vries equation. These higher order
terms destabilise the dispersive shock wave solution, also termed an undular
bore in fluid dynamics, and result in the emission of resonant radiation. In
broad ter... | 2301.00412v1 |
2023-10-09 | Radio pulsars resonantly accelerating electrons | Based on the recently demonstrated resonant wave-wave process, it is shown
that electrons can be accelerated to ultra-relativistic energies in the
magnetospheres of radio pulsars. The energization occurs via the resonant
interaction of the electron wave (described by a Klein-Gordon (KG) equation)
moving in unison with ... | 2310.05830v1 |
2023-10-23 | Resonant Scattering of Gravitational Waves With Electromagnetic Waves | A certain class of exact solutions of Einstein Maxwell spacetime in general
relativity is discussed which demonstrates at the level of theory that, when
certain parametric resonance condition is met, the interaction of
electromagnetic field with a gravitational wave will display certain Liapounov
instability and lead t... | 2310.14920v1 |
2003-08-04 | Modes of wave-chaotic dielectric resonators | Dielectric optical micro-resonators and micro-lasers represent a realization
of a wave-chaotic system, where the lack of symmetry in the resonator shape
leads to non-integrable ray dynamics. Modes of such resonators display a rich
spatial structure, and cannot be classified through mode indices which would
require addi... | 0308016v1 |
2009-07-15 | Mean shear flows generated by nonlinear resonant Alfven waves | In the context of resonant absorption, nonlinearity has two different
manifestations. The first is the reduction in amplitude of perturbations around
the resonant point (wave energy absorption). The second is the generation of
mean shear flows outside the dissipative layer surrounding the resonant point.
Ruderman et al... | 0907.2624v1 |
2020-04-03 | Resonant effect at the ultrarelativistic electron-positron pairs production by gamma quanta in the field of a nucleus and a pulsed light wave | Resonant electron-positron pair production by a high-energy gamma quantum in
the field of a nucleus and a quasi-monochromatic laser wave was theoretically
studied. Under the resonant condition an intermediate virtual electron
(positron) in the laser field becomes a real particle. Due to that fact the
initial process of... | 2004.01530v1 |
2021-03-09 | Classification of resonances and pairing effects on $NA$-scattering within the HFB framework | We analyze the properties of the scattering solutions obtained as the pole of
the S- and K-matrix with the help of the Jost function framework and the
Strum-Liouville theory within the Hartree-Fock-Bogoliubov(HFB) framework, and
clarify the scattering solutions which can be defined as the physical state. We
found that ... | 2103.05181v1 |
2005-05-27 | Second order perturbation theory for spin-orbit resonances | We implement Lie transform perturbation theory to second order for the planar
spin-orbit problem. The perturbation parameter is the asphericity of the body,
with the orbital eccentricity entering as an additional parameter. We study
first and second order resonances for different values of these parameters. For
nearly ... | 0505559v1 |
1997-10-29 | Magnetic Resonance in the Spin-Peierls compound $α'-NaV_2O_5$ | We present results from magnetic resonance measurements for 75-350 GHz in
$\alpha$'-NaV$_{2}$O$_{5}$. The temperature dependence of the integrated
intensity indicates that we observe transitions in the excited state. A
quantitative description gives resonances in the triplet state at high symmetry
points of the excitat... | 9710318v1 |
1999-03-15 | Resonant Raman scattering of quantum wire in strong magnetic field | The resonant Raman scattering of a quantum wire in a strong magnetic field is
studied, focused on the effect of long range Coulomb interaction and the
spin-charge separation. The energy-momentum dispersions of charge and spin
excitation obtained from Raman cross-section show the characteristc cross-over
behaviour induc... | 9903225v1 |
1999-07-30 | A Modified Approach to Single-Spin Detection Using Magnetic Resonance Force Microscopy | The magnetic moment of a single spin interacting with a cantilever in
magnetic resonance force microscopy (MRFM) experiences quantum jumps in
orientation rather than smooth oscillations. These jumps cannot be detected by
a conventional MRFM based on observation of driven resonant oscillations of a
cantilever. In this p... | 9907495v1 |
2001-01-25 | Semiclassical quantization and resonance in spin tunnelling | We derive a semiclassical quantization for a spin, study it for not too small
a spin quantum number (S>5), and compute the 2S+1 eigenvalues of a Hamiltonian
exhibiting resonant tunnelling as the magnetic field parallel to the anisotropy
axis is increased. Special attention is paid to the resonance condition. As a
corol... | 0101388v1 |
2002-11-05 | Magnetic fluctuations and resonant peak in cuprates: a microscopic theory | The theory for the dynamical spin susceptibility within the t-J model is
developed, as relevant for the resonant magnetic peak and normal-state magnetic
response in superconducting (SC) cuprates. The analysis is based on the
equations of motion for spins and the memory-function presentation of magnetic
response where t... | 0211090v1 |
2003-07-21 | Nuclear Magnetic Resonance in a Ferromagnet-Semiconductor Heterostructure | We report the observation of nuclear magnetic resonance (NMR) in a
ferromagnet-semiconductor heterostructure in the presence of a spin-polarized
current. Spin-polarized electrons injected from a metallic ferromagnet generate
a large nuclear spin population in a GaAs quantum well by dynamic polarization.
The characteris... | 0307512v1 |
2006-09-19 | The emergence of Resonating Valence Bond physics in spin-orbital models | We discuss how orbital degeneracy, which is usually removed by a cooperative
Jahn-Teller distortion, could under appropriate circumstances lead rather to a
Resonating Valence Bond spin-orbital liquid. The key points are: i) The
tendency to form spin-orbital dimers, a tendency already identified in several
cases; ii) Th... | 0609455v1 |
2007-09-22 | Multiphoton Bloch-Siegert shifts and level-splittings in spin-one systems | We consider a spin-boson model in which a spin 1 system is coupled to an
oscillator. A unitary transformation is applied which allows a separation of
terms responsible for the Bloch-Siegert shift, and terms responsible for the
level splittings at anticrossings associated with Bloch-Siegert resonances.
When the oscillat... | 0709.3557v1 |
2007-10-12 | Coherent Spin Manipulations of a Polarized Beam With a Localized RF Magnetic Field | The coherent manipulation of spin observables in storage rings provides
opportunities to test the application of some fundamental dynamical principles.
In this context, it is possible to confirm, using gauge invariance and Lorentz
invariance, a conjecture framed by A. M. Kondratenko concerning the "natural"
or "intrins... | 0710.2566v1 |
2008-06-30 | Spin Collective Modes of Two-Species Fermi Liquids: Helium-3 and Atomic Gases near the Feshbach Resonance | We present theoretical findings on the spin collective modes of a two-species
Fermi liquid, prepared alternatively in a polarized equilibrium or a polarized
non-equilibrium state. We explore the effects on these modes of a diverging
s-wave scattering length, as occurs near a Feshbach resonance in a Fermionic
atomic gas... | 0807.0018v1 |
2010-03-23 | Electron Paramagnetic Resonance of Boron Acceptors in Isotopically Purified Silicon | The electron paramagnetic resonance (EPR) linewidths of B acceptors in Si are
found to reduce dramatically in isotopically purified 28Si single crystals.
Moreover, extremely narrow substructures in the EPR spectra are visible
corresponding to either an enhancement or a reduction of the absorbed microwave
on resonance. ... | 1003.4339v1 |
2010-12-10 | Spin-orbit driven ferromagnetic resonance: A nanoscale magnetic characterisation technique | We demonstrate a scalable new ferromagnetic resonance (FMR) technique based
on the spin-orbit interaction. An alternating current drives FMR in uniform
ferromagnetic structures patterned from the dilute magnetic semiconductors
(Ga,Mn)As and (Ga,Mn)(As,P). This allows the direct measurement of magnetic
anisotropy coeffi... | 1012.2397v1 |
2011-01-05 | Effects of La non-magnetic impurities on the spin resonance of CeCoIn$_{5}$ | The influence of La non magnetic impurities on the spin dynamics of
CeCoIn$_{5}$ was studied by inelastic neutron scattering. In La-substituted
systems, the spin resonance peak (observed at $\Omega_{res}=0.55 meV$ in the
pure system) is shifted to lower energies but the ratio
$\Omega_{res}/k_{B}T_{c}$ remains unchanged... | 1101.1018v1 |
2011-03-24 | Effect of nonadiabatic spin transfer torque on domain wall resonance frequency and mass | The dynamics of a magnetic domain wall in a semi circular nanowire loop is
studied by an analytical model and micromagnetic simulations. We find a damped
sinusoidal oscillation of the domain wall for small displacement angles around
its equilibrium position under an external magnetic field in the absence of
currents. B... | 1103.4670v1 |
2012-03-09 | Magnetic field splitting of the spin-resonance in CeCoIn5 | Neutron scattering in strong magnetic fields is used to show the
spin-resonance in superconducting CeCoIn5 (Tc=2.3 K) is a doublet. The
underdamped resonance (\hbar \Gamma=0.069 \pm 0.019 meV) Zeeman splits into two
modes at E_{\pm}=\hbar \Omega_{0}\pm g\mu_{B} \mu_{0}H with g=0.96 \pm 0.05. A
linear extrapolation of t... | 1203.2189v1 |
2013-06-08 | A Raman-induced Feshbach resonance in an effectively single-component Fermi gas | Ultracold gases of interacting spin-orbit coupled fermions are predicted to
display exotic phenomena such as topological superfluidity and its associated
Majorana fermions. Here, we experimentally demonstrate a route to
strongly-interacting single-component atomic Fermi gases by combining an s-wave
Feshbach resonance (... | 1306.1965v1 |
2013-12-13 | Extreme Harmonic Generation in Electrically Driven Spin Resonance | We report the observation of multiple harmonic generation in electric dipole
spin resonance in an InAs nanowire double quantum dot. The harmonics display a
remarkable detuning dependence: near the interdot charge transition as many as
eight harmonics are observed, while at large detunings we only observe the
fundamenta... | 1312.3875v2 |
2015-02-17 | Direct Observation of Ferromagnetic State in Gold Nanorods Probed using Electron Spin Resonance Spectroscopy | X-band electron spin resonance (ESR) spectroscopy has been performed for gold
nanorods (AuNRs) of four different sizes covered with a diamagnetic stabilizing
component, cetyltrimethylammmonium bromide. The ESR spectra show ferromagnetic
features such as hysteresis and resonance field shift, depending on the size of
the... | 1502.04934v1 |
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