publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2023-01-01 | Spin Hall Induced Magnetization Dynamics in Multiferroic Tunnel Junction | The combination of spin-orbit coupling driven effects and multiferroic
tunneling properties was explored experimentally in thin Pt/Co/BTO/LSMO
multilayers. The presence of a Pt heavy metal allows for the spin
current-induced magnetization precession of Co upon radio-frequency charge
current injection. The utilization o... | 2301.00459v1 |
2023-03-13 | Towards a unified picture of polarization transfer -- pulsed DNP and chemically equivalent PHIP | Nuclear spin hyperpolarization techniques, such as dynamic nuclear
polarization (DNP) and parahydrogen-induced polarization (PHIP), have
revolutionized nuclear magnetic resonance and magnetic resonance imaging. In
these methods, a readily available source of high spin order, either electron
spins in DNP or singlet stat... | 2303.07478v2 |
2023-06-17 | Coherent two-dimensional THz magnetic resonance spectroscopies for molecular magnets: Analysis of Dzyaloshinskii-Moriya interaction | To investigate the novel quantum dynamic behaviors of magnetic materials that
arise from complex spin-spin interactions, it is necessary to probe the
magnetic response at a speed greater than the spin-relaxation and dephasing
processes. Recently developed two-dimensional (2D) terahertz magnetic resonance
(THz-MR) spect... | 2306.10222v1 |
2023-07-23 | Unconventional spin polarization at Argon ion milled SrTiO3 Interfaces | Interfacial two-dimensional electron gas (2DEG) formed at the perovskite-type
oxide, such as SrTiO3, has attracted significant attention due to its
properties of ferromagnetism, superconductivity, and its potential application
in oxide-based low-power consumption electronics. Recent studies have
investigated spin-to-ch... | 2307.12390v1 |
2023-09-05 | Electrically Driven Spin Resonance of 4f Electrons in a Single Atom on a Surface | A pivotal challenge in quantum technologies lies in reconciling long
coherence times with efficient manipulation of the quantum states of a system.
Lanthanide atoms, with their well-localized 4f electrons, emerge as a promising
solution to this dilemma if provided with a rational design for manipulation
and detection. ... | 2309.02348v2 |
2024-02-02 | Theory of Electron Spin Resonance Spectroscopy in Scanning Tunneling Microscope | The integration of scanning tunneling microscopy (STM) and electron spin
resonance (ESR) spectroscopy has emerged as a powerful and innovative tool for
discerning spin excitations and spin-spin interactions within atoms and
molecules adsorbed on surfaces. However, the origin of the STM-ESR signal and
the underlying mec... | 2402.01435v2 |
2014-07-24 | Fano collective resonance as complex mode in a two dimensional planar metasurface of plasmonic nanoparticles | Fano resonances are features in transmissivity/reflectivity/absorption that
owe their origin to the interaction between a bright resonance and a dark
(i.e., sub-radiant) narrower resonance, and may emerge in the optical
properties of planar two-dimensional (2D) periodic arrays (metasurfaces) of
plasmonic nanoparticles.... | 1407.6656v2 |
2016-12-09 | A General Theory for Bandgap Estimation in Locally Resonant Metastructures | Locally resonant metamaterials are characterized by bandgaps at wavelengths
that are much larger than the lattice size, enabling low-frequency vibration
attenuation. Typically, bandgap analyses and predictions rely on the assumption
of traveling waves in an infinite medium, and do not take advantage of modal
representa... | 1612.03130v1 |
2006-04-15 | Observation of high-order quantum resonances in the kicked rotor | Quantum resonances in the kicked rotor are characterized by a dramatically
increased energy absorption rate, in stark contrast to the momentum
localization generally observed. These resonances occur when the scaled
Planck's constant hbar=(r/s)*4pi, for any integers r and s. However only the
hbar=r*2pi resonances are ea... | 0604110v1 |
2007-08-22 | Shape resonances in modified effective range theory for electron-molecule collisions | We develop a simple model of shape resonances in electron-molecule collisions
that is based on the modified effective-range expansion and analytical
solutions of the Schrodinger equation for the long-range part of the
interaction potential. We apply our model to electron scattering on N$_2$ and
CO$_2$. The parameters o... | 0708.2991v2 |
2007-10-01 | A model for chaotic dielectric microresonators | We develop a random-matrix model of two-dimensional dielectric resonators
which combines internal wave chaos with the deterministic Fresnel laws for
reflection and refraction at the interfaces. The model is used to investigate
the statistics of the laser threshold and line width (lifetime and Petermann
factor of the re... | 0710.0227v1 |
2009-11-06 | Spherical-box approach for resonances in presence of Coulomb interaction | The spherical-box approach is extended to calculate the resonance parameters
and the real part of the wave function for single particle resonances in a
potential containing the long-range Coulomb interaction. A model potential is
taken to demonstrate the ability and accuracy of this approach. The calculated
resonance p... | 0911.1171v1 |
2010-05-16 | Resonance spectrum for one-dimensional layered media | We consider the "weighted" operator $P_k=-\partial_x a(x)\partial_x$ on the
line with a step-like coefficient which appears when propagation of waves
thorough a finite slab of a periodic medium is studied. The medium is
transparent at certain resonant frequencies which are related to the complex
resonance spectrum of $... | 1005.2743v1 |
2013-01-15 | Resonant Bound-Free Contributions to Thomson Scattering of X-rays by Warm Dense Matter | Recent calculations [Nilsen et al. arXiv:1212.5972] predict that
contributions to the scattered photon spectrum from 3s and 3p bound states in
chromium (Z=24) at metallic density and T=12 eV resonate below the respective
bound-state thresholds. These resonances are shown to be closely related to
continuum lowering, whe... | 1301.3440v1 |
2014-03-13 | Fano-Feshbach resonances in two-channel scattering around exceptional points | It is well known that in open quantum systems resonances can coalesce at an
exceptional point, where both the energies {\em and} the wave functions
coincide. In contrast to the usual behaviour of the scattering amplitude at one
resonance, the coalescence of two resonances invokes a pole of second order in
the Green's f... | 1403.3187v1 |
2014-10-16 | Recent development of complex scaling method for many-body resonances and continua in light nuclei | The complex scaling method (CSM) is a useful similarity transformation of the
Schr\"odinger equation, in which bound-state spectra are not changed but
continuum spectra are separated into resonant and non-resonant continuum ones.
Because the asymptotic wave functions of the separated resonant states are
regularized by ... | 1410.4356v1 |
2014-10-21 | Observation of orbiting resonances in He(3S1) + NH3 Penning ionization | Resonances are among the clearest quantum mechanical signatures of scattering
processes. Previously, shape resonances and Feshbach resonances have been
observed in inelastic and reactive collisions involving atoms or diatomic
molecules. Structure in the integral cross section has been observed in a
handful of elastic c... | 1410.5651v2 |
2015-08-26 | Probabilistic interpretation of compositeness relation for resonances | Bound, antibound and resonance states are associated to poles in the on-shell
partial wave amplitudes. We show here that from the residues of the pole a rank
1 projection operator associated with any of these states can be extracted, in
terms of which a sum rule related to the composition of the state can be
derived. A... | 1508.06400v2 |
2016-05-29 | Enhanced light-vapor interactions and all optical switching in a chip scale micro-ring resonator coupled with atomic vapor | The coupling of atomic and photonic resonances serves as an important tool
for enhancing light-matter interactions and enables the observation of
multitude of fascinating and fundamental phenomena. Here, by exploiting the
platform of atomic-cladding wave guides, we experimentally demonstrate the
resonant coupling of ru... | 1605.09008v1 |
2016-05-30 | Sign-Reversal Coupling in Coupled-Resonator Optical Waveguide | Coupled-resonator optical waveguides (CROWs), which play a significant role
in modern photonics, achieve waveguiding through near-field coupling between
tightly localized resonators. The coupling factor, a critical parameter in CROW
theory, determines the coupling strength between two resonators and the
waveguiding dis... | 1605.09163v1 |
2016-09-22 | Transformation of the frequency-modulated continuous-wave field into a train of short pulses by resonant filters | The resonant filtering method transforming frequency modulated radiation
field into a train of short pulses is proposed to apply in optical domain.
Effective frequency modulation can be achieved by electro-optic modulator or by
resonant frequency modulation of the filter with a narrow absorption line. Due
to frequency ... | 1609.06872v1 |
2017-12-07 | Double-negative electromagnetic metamaterials due to chirality | The aim of this paper is to provide a mathematical theory for understanding
the mechanism behind the double-negative refractive index phenomenon in chiral
materials. The design of double-negative metamaterials generally requires the
use of two different kinds of subwavelength resonators, which may limit the
applicabili... | 1712.02863v1 |
2018-05-05 | Signatures of few-body resonances in finite volume | We study systems of bosons and fermions in finite periodic boxes and show how
the existence and properties of few-body resonances can be extracted from
studying the volume dependence of the calculated energy spectra. Using a
plane-wave-based discrete variable representation to conveniently implement
periodic boundary c... | 1805.02029v2 |
2019-11-12 | Effect of the resonance spectra in the propagation of two decaying entangled particles | An exact analytical solution of the decaying wave function of two identical
noninteracting particles, which are entangled by spatial symmetry, is used to
analyze the effect of the resonance spectra in the propagation of the decaying
probability density outside the interaction potential region. We find, using
exactly so... | 1911.05056v1 |
2014-06-27 | Ultrasensitive THz sensing with high-Q Fano resonances in metasurfaces | High quality factor resonances are extremely promising for designing
ultra-sensitive refractive index label-free sensors since it allows intense
interaction between electromagnetic waves and the analyte material.
Metamaterial and plasmonic sensing has recently attracted a lot of attention
due to subwavelength confineme... | 1406.7194v1 |
2018-02-11 | Floquet spectroscopy of a strongly driven quantum dot charge qubit with a microwave resonator | We experimentally investigate a strongly driven GaAs double quantum dot
charge qubit weakly coupled to a superconducting microwave resonator. The
Floquet states emerging from strong driving are probed by tracing the qubit -
resonator resonance condition. This way we probe the resonance of a qubit that
is driven in an a... | 1802.03810v1 |
2018-02-20 | Dynamo induced by time-periodic force | To understand the dynamo driven by time-dependent flow, e.g. turbulence, we
investigate numerically the dynamo induced by time-periodic force in rotating
magnetohydrodynamic flow and focus on the effect of force frequency on the
dynamo action. It is found that the dynamo action depends on the force
frequency. When the ... | 1802.08284v2 |
2016-03-08 | Bound and scattering states in harmonic waveguides in the vicinity of free space Feshbach resonances | The two-body bound and scattering properties in an one-dimensional harmonic
waveguide close to free space magnetic Feshbach resonances are investigated
based on the local frame transformation approach within a single partial wave
approximation. An energy and magnetic field dependent free space phase shift is
adopted in... | 1603.02616v1 |
2021-08-10 | Resonant photoproduction of ultrarelativistic electron-positron pairs on a nucleus in strong monochromatic light field | For complete development of quantum electrodynamics in the presence of a
strong external field, the proper understanding of resonant processes and all
their peculiarities is essential. We present our attempt to analytically
investigate the resonant case of laser-assisted electron-positron pair
photoproduction on a nucl... | 2108.04955v1 |
2017-03-06 | Inverse resonance problems for the Schroedinger operator on the real line with mixed given data | In this work, we study inverse resonance problems for the Schr\"odinger
operator on the real line with the potential supported in $[0,1]$. In general,
all eigenvalues and resonances can not uniquely determine the potential. (i) It
is shown that if the potential is known a priori on $[0,1/2]$, then the unique
recovery o... | 1703.01708v2 |
2019-07-10 | Intrinsic multipolar contents of nanoresonators for tailored scattering | We introduce a theoretical and computational method to design resonant
objects, such as nanoantennas or meta-atoms, exhibiting tailored multipolar
responses. In contrast with common approaches that rely on a multipolar
analysis of the scattering response of an object upon specific excitations, we
propose to engineer th... | 1907.04598v3 |
2020-01-25 | Asymptotic modeling of Helmholtz resonators including thermoviscous effects | We systematically employ the method of matched asymptotic expansions to model
Helmholtz resonators, with thermoviscous effects incorporated starting from
first principles and with the lumped parameters characterizing the neck and
cavity geometries precisely defined and provided explicitly for a wide range of
geometries... | 2001.09353v1 |
2020-07-29 | Spatial Fano resonance of a dielectric microsphere impinged by a Bessel beam | General concept of Fano resonance is considered so that to show the
possibility of this resonance in space. Using a recently found solution for a
Bessel wave beam impinging a dielectric sphere, we analyze the electromagnetic
fields near a microsphere with different optical size and permittivity values.
We theoretically... | 2007.14867v2 |
2021-01-09 | Semi-insulating 4H-SiC lateral bulk acoustic wave resonators | Silicon carbide (SiC) excels in its outstanding mechanical properties, which
are widely studied in Microelectromechanical systems (MEMS). Recently, the
mechanical tuning of color centers in 4H-SiC has been demonstrated, broadening
its application in quantum spintronics. The strain generated in a mechanical
resonator ca... | 2101.03281v3 |
2021-03-26 | Resonant binding of dielectric particles to metal surface without plasmonics | High index dielectric spherical particle supports the high-$Q$ resonant Mie
modes that results in a regular series of sharp resonances in the radiation
pressure. A presence of perfectly conducting metal surface transforms the Mie
modes into the extremely high-$Q$ magnetic bonding or electric anti-bonding
modes for clos... | 2103.14219v1 |
2021-06-10 | Broadband resonant calibration-free complex permittivity retrieval of liquid solutions | Material susceptibilities govern interactions between electromagnetic waves
and matter and are of a crucial importance for basic understanding of natural
phenomena and for tailoring practical applications. Here we present a new
calibration-free method for relative complex permittivity retrieval, which
allows using acce... | 2106.09458v2 |
2022-05-06 | Complementary-Switchable Dual-Mode SHF Scandium-Aluminum Nitride BAW Resonator | This article presents a bulk acoustic wave (BAW) resonator with complementary
switchable operation in the first and second thickness extensional modes (TE1
and TE2) at 7.04 and 13.4 GHz. Two ferroelectric scandium aluminum nitride
(Sc0.28Al0.72N) layers are alternatively stacked with three molybdenum
electrodes, creati... | 2205.03446v2 |
2023-10-12 | Space-time symmetry and parametric resonance in dynamic mechanical systems | Linear mechanical systems with time-modulated parameters can harbor
oscillations with amplitudes that grow or decay exponentially with time due to
the phenomenon of parametric resonance. While the resonance properties of
individual oscillators are well understood, identifying the conditions for
parametric resonance in ... | 2310.08734v1 |
2023-11-15 | Active elastic metamaterials with equidistant solely resonant bandgaps | Elastic metamaterials are man-made structures with properties that transcend
naturally occurring materials. One predominant feature of elastic metamaterials
is locally resonant bandgaps, i.e., frequency ranges at which wave propagation
is blocked. Locally resonant bandgaps appear at relatively low frequency and
arise f... | 2311.08959v2 |
2023-11-17 | Resonance of Geometric Quantities and Hidden Symmetry in the Asymmetric Rabi Model | We present the interesting resonance of two kinds of geometric quantities,
namely the Aharonov-Anandan (AA) phase and the time-energy uncertainty, and
reveal the relation between resonance and the hidden symmetry in the asymmetric
Rabi model by numerical and analytical methods. By combining the
counter-rotating hybridi... | 2311.10249v1 |
2023-12-22 | Nucleon resonance parameters from Roy-Steiner equations | A reliable determination of the pole parameters and residues of nucleon
resonances is notoriously challenging, given the required analytic continuation
into the complex plane. We provide a comprehensive analysis of such resonance
parameters accessible with Roy-Steiner equations for pion-nucleon scattering -
a set of pa... | 2312.15015v1 |
2015-01-14 | Long-lived Chaotic Orbital Evolution of Exoplanets in Mean Motion Resonances with Mutual Inclinations | We present N-body simulations of resonant planets with inclined orbits that
show chaotically evolving eccentricities and inclinations that can persist for
at least 10 Gyr. A wide range of behavior is possible, from fast, low amplitude
variations to systems in which eccentricities reach 0.9999 and inclinations
179.9 deg... | 1501.03231v1 |
2021-07-02 | Isovector giant monopole and quadrupole resonances in a Skyrme energy density functional approach with axial symmetry | [Background] Giant resonance (GR) is a typical collective mode of vibration.
The deformation splitting of the isovector (IV) giant dipole resonance is well
established. However, the splitting of GRs with other multipolarities is not
well understood. [Purpose] I explore the IV monopole and quadrupole excitations
and att... | 2107.00867v1 |
2001-04-22 | Parametric generation of second sound in superfluid helium: linear stability and nonlinear dynamics | We report the experimental studies of a parametric excitation of a second
sound (SS) by a first sound (FS) in a superfluid helium in a resonance cavity.
The results on several topics in this system are presented: (i) The linear
properties of the instability, namely, the threshold, its temperature and
geometrical depend... | 0104414v1 |
2022-08-01 | Tidally Forced Planetary Waves in the Tachocline of Solar-like Stars | Can atmospheric waves in planet-hosting solar-like stars substantially
resonate to tidal forcing? Substantially at a level of impacting the space
weather or even of being dynamo-relevant? In particular, low-frequency Rossby
waves, which have been detected in the solar near-surface layers, are
predestined at responding ... | 2208.00644v1 |
2011-01-10 | Radiation of caustic beams from a collapsing bullet | Collapse of an intense (2+1)-dimensional wave packet in a medium with cubic
nonlinearity and a two-dimensional dispersion of an order higher than parabolic
is studied both theoretically and experimentally. The carrier waves are
microwave backward volume spin waves which propagate in a stripe made from a
thin ferrimagne... | 1101.1696v2 |
2018-05-18 | Spinning Particles in Twisted Gravitational Wave Spacetimes | Twisted gravitational waves (TGWs) are nonplanar waves with twisted rays that
move along a fixed direction in space. We study further the physical
characteristics of a recent class of Ricci-flat solutions of general relativity
representing TGWs with wave fronts that have negative Gaussian curvature. In
particular, we i... | 1805.07080v6 |
2018-06-11 | Explicit inclusion of spin-orbit contribution in THSR wave function | The Tohsaki-Horiuchi-Schuck-Roepke (THSR) wave function has been successfully
used for the studies of gas-like nature of alpha clusters in various nuclei
including the so-called Hoyle state of 12C and four alpha states of 16O. In
standard alpha cluster models, however, each alpha cluster wave function has
spin zero bec... | 1806.03817v1 |
2020-04-07 | Nonreciprocal Dzyaloshinskii-Moriya magnetoacoustic waves | We study the interaction of surface acoustic waves with spin waves in
ultra-thin CoFeB/Pt bilayers. Due to the interfacial Dzyaloshinskii-Moriya
interaction (DMI), the spin wave dispersion is non-degenerate for oppositely
propagating spin waves in CoFeB/Pt. In combination with the additional
nonreciprocity of the magne... | 2004.03535v2 |
2023-09-20 | On spin optics for gravitational waves lensed by a rotating object | We study gravitational lensing of gravitational waves taking into account the
spin of a graviton coupled with a dragged spacetime made by a rotating object.
We decompose the phase of gravitational waves into helicity-dependent and
independent components with spin optics, analyzing waves whose wavelengths are
shorter th... | 2309.11024v2 |
2006-08-30 | Spin-quadrupole ordering of spin-3/2 ultracold fermionic atoms in optical lattices in the one-band Hubbard model | Based on a generalized one-band Hubbard model, we study magnetic properties
of Mott insulating states for ultracold spin-3/2 fermionic atoms in optical
lattices. When the \textit{s}-wave scattering lengths for the total spin
$S=2,0$ satisfy conditions $a_{2}>a_{0}>0$, we apply a functional integral
approach to the half... | 0608673v3 |
2015-10-12 | On equation of state for the "thermal" part of the spin current: Pauli principle contribution in the spin wave spectrum in cold fermion system | Spin evolution opened a large field in quantum plasma research. The spin
waves in plasmas were considered among new phenomena considered in spin-1/2
quantum plasmas. The spin density evolution equation found by means of the
many-particle quantum hydrodynamics shows existence of the "thermal" part of
the spin current, w... | 1510.03468v1 |
2016-05-10 | New investigations on the transverse spin of structured optical fields | Guided waves and surface waves can be taken as two typical examples of
structured optical fields with the transverse spin. Analytical derivations are
developed to demonstrate that (i) guided waves also carry the transverse spin
that depends on the mean direction of propagation, which may have important
applications in ... | 1605.03103v2 |
2021-04-19 | Experimental observation of transverse spin of plasmon polaritons in a single-crystalline silver nanowire | We report the experimental observation of the transverse spin and associated
spin-momentum locking of surface plasmon polaritons (SPPs) excited in a
plasmonic single crystalline silver nanowire (AgNW). In contrast to the SPPs
excited in metal films, the electromagnetic field components of the evanescent
SPP mode propag... | 2104.09303v2 |
2020-01-16 | The Low Effective Spin of Binary Black Holes and Implications for Individual Gravitational-Wave Events | While the Advanced LIGO and Virgo gravitational-wave experiments now
regularly observe binary black hole mergers, the evolutionary origin of these
events remains a mystery. Analysis of the binary black hole spin distribution
may shed light on this mystery, offering a means of discriminating between
different binary for... | 2001.06051v2 |
2023-07-18 | Effect of Spin Orbit Coupling in non-centrosymmetric half-Heusler alloys | Spin-orbit coupled electronic structure of two representative non-polar
half-Heusler alloys, namely 18 electron compound CoZrBi and 8 electron compound
SiLiIn have been studied in details. An excursion through the Brillouin zone of
these alloys from one high symmetry point to the other revealed rich local
symmetry of t... | 2308.03760v2 |
2024-01-11 | Gravitational waves carry information beyond effective spin parameters but it is hard to extract | Gravitational wave observations of binary black hole mergers probe their
astrophysical origins via the binary spin, namely the spin magnitudes and
directions of each component black hole, together described by six degrees of
freedom. However, the emitted signals primarily depend on two effective spin
parameters that co... | 2401.05613v1 |
2001-05-09 | Spin tunneling via dislocations in Mn-12 acetate crystals | We show that dislocations should be the main source of spin tunneling in
Mn-12 crystals. Long-range strains caused by dislocations produce broad
distribution of relaxation times that has been seen in many experiments. When
the external magnetic field is applied along the c-axis of the crystal, local
rotations of the ma... | 0105195v1 |
2001-10-17 | Evaluation of the Bychkov- Rashba Field from the Spin Resonance of Electrons in a Si Quantum Well | From spin resonance of two-dimensional (2D) conduction electrons in a
modulation doped SiGe/Si/SiGe quantum well structure we find a 2D anisotropy of
both the line broadening (dephasing time) and the g-factor. We show that these
can be explained consistently in terms of the Bychkov-Rashba (BR) field which
here is the d... | 0110342v1 |
2002-10-26 | Dynamic exchange coupling in magnetic bilayers | A long-ranged dynamic interaction between ferromagnetic films separated by
normal-metal spacers is reported, which is communicated by nonequilibrium spin
currents. It is measured by ferromagnetic resonance (FMR) and explained by an
adiabatic spin-pump theory. In FMR the spin-pump mechanism of spatially
separated magnet... | 0210588v2 |
2003-09-11 | Spin Dynamics of t-J Model on Triangular Lattice | We study the spin dynamics of t-J model on triangular lattice in the
Slave-Boson-RPA scheme in light of the newly discovered superconductor
Na$_{x}$CoO$_{2}$. We find resonant peak in the dynamic spin susceptibility in
the $d+id^{^{\prime}}$-wave superconducting state for both hole and electron
doping in large doping r... | 0309275v1 |
2004-07-23 | Electron Spin Resonance of SrCu2(BO3)2 at High Magnetic Field | We calculate the electron spin resonance (ESR) spectra of the
quasi-two-dimensional dimer spin liquid SrCu2(BO3)2 as a function of magnetic
field B. Using the standard Lanczos method, we solve a Shastry-Sutherland
Hamiltonian with additional Dzyaloshinsky-Moriya (DM) terms which are crucial
to explain different qualita... | 0407632v1 |
2004-09-22 | Wigner Function Formalism for Zero Magnetic Field Spin Dependent Resonant Tunneling Structures | We develop a Wigner function representation of the quantum transport theory
of the conduction band electrons in Rashba effect resonant tunneling structures
with a phonon bath. In narrow band gap heterostructures, spin splitting occurs
mainly as a result of inversion asymmetry in the spatial dependence of the
potential ... | 0409595v2 |
2005-02-18 | Electron spin resonance on a 2-dimensional electron gas in a single AlAs quantum well | Direct electron spin resonance (ESR) on a high mobility two dimensional
electron gas in a single AlAs quantum well reveals an electronic $g$-factor of
1.991 at 9.35 GHz and 1.989 at 34 GHz with a minimum linewidth of 7 Gauss. The
ESR amplitude and its temperature dependence suggest that the signal originates
from the e... | 0502450v1 |
2006-01-26 | Tunable conductance of magnetic nanowires with structured domain walls | We show that in a magnetic nanowire with double magnetic domain walls,
quantum interference results in spin-split quasistationary states localized
mainly between the domain walls. Spin-flip-assisted transmission through the
domain structure increases strongly when these size-quantized states are tuned
on resonance with... | 0601620v1 |
2006-05-05 | Cavity quantum electrodynamics with semiconductor double-dot molecules on a chip | We describe a coherent control technique for coupling electron spin states
associated with semiconductor double-dot molecule to a microwave stripline
resonator on a chip. We identify a novel regime of operation in which strong
interaction between a molecule and a resonator can be achieved with minimal
decoherence, reac... | 0605144v1 |
2006-05-23 | Suppression of telegraph noise in a CPP spin valve by an oscillating spin torque: Numerical study | The phenomenon of stochastic resonance (SR) has been mainly studied in
one-dimensional systems with additive noise. We show that in higher dimensional
systems and in the presence of multiplicative noise, a non-linear magnetic
system with a strongly periodic current can show behavior similar to that of SR
but only for f... | 0605585v1 |
2006-09-08 | Quantum Dynamics of Molecular Nanomagnets in a Resonant Cavity and the Maser Effect | We study the dynamics of molecular nanomagnets through a fully quantum
mechanical model describing high-spin and high-anisotropy magnetic molecules
subjected to a time-dependent magnetic field along the quantization axis, which
continuously inverts the population of spin states. Crystals of molecular
nanomagnets placed... | 0609205v1 |
1997-03-19 | Spin-Dependent Twist-Four Matrix Elements from g_1 Data in the Resonance Region | Matrix elements of spin-dependent twist-four operators are extracted from
recent data on the spin-dependent g_1 structure function of the proton and
deuteron in the resonance region. We emphasize the need to include the elastic
contributions to the first moments of the structure functions at Q^2 < 2 GeV^2.
The coeffici... | 9703363v1 |
1998-12-17 | Effective Lagrangian Study of $γp \to K^+ Λ$ (spin 3/2 resonances and their off-shell effects) | The purpose of the present discussion is to supplement the talk, by B.~Saghai
at this workshop, on the study of the electromagnetic production of strangeness
on the nucleon based upon effective Lagrangian methods. Here we focus on the
proper treatment of the spin 3/2 resonances and their associated effects due to
the s... | 9812048v1 |
2004-10-18 | Applicability of shape parameterizations for giant dipole resonance in warm and rapidly rotating nuclei | We investigate how well the shape parameterizations are applicable for
studying the giant dipole resonance (GDR) in nuclei, in the low temperature
and/or high spin regime. The shape fluctuations due to thermal effects in the
GDR observables are calculated using the actual free energies evaluated at
fixed spin and tempe... | 0410075v1 |
2000-03-30 | Novel approach for spin-flipping a stored polarized beam | The traditional method of spin-flipping a stored polarized beam is based on
slowly crossing an rf induced depolarizing resonance. This paper discusses a
novel approach where the polarization reversal is achieved by trapping the beam
polarization into a stable spin-flipping motion on top of the rf induced
resonance at a... | 0003104v1 |
1999-09-09 | Solid-State Nuclear Spin Quantum Computer Based on Magnetic Resonance Force Microscopy | We propose a nuclear spin quantum computer based on magnetic resonance force
microscopy (MRFM). It is shown that an MRFM single-electron spin measurement
provides three essential requirements for quantum computation in solids: (a)
preparation of the ground state, (b) one- and two- qubit quantum logic gates,
and (c) a m... | 9909033v1 |
1999-10-06 | Quantum stochastic resonance in driven spin-boson system with stochastic limit approximation | After a brief review of stochastic limit approximation with spin-boson system
from physical points of view, amplification phenomenon-stochastic resonance
phenomenon-in driven spin-boson system is observed which is helped by the
quantum white noise introduced through the stochastic limit approximation. The
shift in freq... | 9910025v1 |
2002-10-07 | Single-Spin Measurement and Decoherence in Magnetic Resonance Force Microscopy | We consider a simple version of a cyclic adiabatic inversion (CAI) technique
in magnetic resonance force microscopy (MRFM). We study the problem: What
component of the spin is measured in the CAI MRFM? We show that the
non-destructive detection of the cantilever vibrations provides a measurement
of the spin component a... | 0210043v1 |
2004-02-24 | Sequential Probability Ratio Test for the detection of a single electron spin in the OSCAR setup | The MRFM device is a powerful setup for manipulating single electron spin in
resonance in a magnetic field. However, the real time observation of a
resonating spin is still an issue because of the very low SNR of the output
signal. This paper investigates the usability and the efficiency of sequential
detection schemes... | 0402181v1 |
2004-11-16 | Adiabatic Quantum State Manipulation of Single Trapped Atoms | We use microwave induced adiabatic passages for selective spin flips within a
string of optically trapped individual neutral Cs atoms. We
position-dependently shift the atomic transition frequency with a magnetic
field gradient. To flip the spin of a selected atom, we optically measure its
position and sweep the microw... | 0411120v2 |
2005-03-25 | Simulation of a Heisenberg XY- chain and realization of a perfect state transfer algorithm using liquid nuclear magnetic resonance | The three- spin chain with Heisenberg XY- interaction is simulated in a
three- qubit nuclear magnetic resonance (NMR) quantum computer. The evolution
caused by the XY- interaction is decomposed into a series of single- spin
rotations and the $J$- coupling evolutions between the neighboring spins. The
perfect state tran... | 0503199v2 |
2006-05-02 | Projective measurement in nuclear magnetic resonance | It is demonstrated that nuclear magnetic resonance experiments using
pseudopure spin states can give possible outcomes of projective quantum
measurement and probabilities of such outcomes. The physical system is a
cluster of six dipolar-coupled nuclear spins of benzene in a liquid-crystalline
matrix. For this system wi... | 0605032v1 |
2007-07-03 | Spin-orbit-assisted electron-phonon interaction and the magnetophonon resonance in semiconductor quantum wells | We introduce a spin-orbit assisted electron-phonon (e-ph) coupling mechanism
for carriers in semiconductor quantum wells and predict qualitatively the form
and shape of anticrossings between the cyclotron resonance (CR) and optical (LO
and TO) phonons. Since this e-ph interaction involves the electron spin it
makes the... | 0707.0342v2 |
2007-08-30 | NMR method for amplification of single spin state | Amplification of a single spin state using nuclear magnetic resonance (NMR)
techniques in a rotating frame is considered. The main aim is to investigate
the efficient of various schemes for quantum detection. Results of numerical
simulation of the time dependence of individual and total nuclear polarizations
for one-, ... | 0708.4090v1 |
2007-11-26 | Dynamic Nuclear Polarization in Silicon Microparticles | We report record high Si-29 spin polarization obtained using dynamic nuclear
polarization in microcrystalline silicon powder. Unpaired electrons in this
silicon powder are due to dangling bonds in the amorphous region of this
intrinsically heterogeneous sample. Si-29 nuclei in the amorphous region become
polarized by f... | 0711.4076v2 |
2008-04-01 | Entanglement and transport anomalies in nanowires | A shallow potential well in a near-perfect quantum wire will bind a
single-electron and behave like a quantum dot, giving rise to spin-dependent
resonances of propagating electrons due to Coulomb repulsion and Pauli
blocking. It is shown how this may be used to generate full entanglement
between static and flying spin-... | 0804.0141v1 |
2008-07-11 | Probing the spin polarization of current by soft X-ray imaging of current-induced magnetic vortex dynamics | Time-resolved soft X-ray transmission microscopy is applied to image the
current-induced resonant dynamics of the magnetic vortex core realized in a
micronsized Permalloy disk. The high spatial resolution better than 25 nm
enables us to observe the resonant motion of the vortex core. The result also
provides the spin p... | 0807.1782v1 |
2008-10-27 | Coherent spin radiation by magnetic nanomolecules and nanoclusters | The peculiarities of coherent spin radiation by magnetic nanomolecules is
investigated by means of numerical simulation. The consideration is based on a
microscopic Hamiltonian taking into account realistic dipole interactions.
Superradiance can be realized only when the molecular sample is coupled to a
resonant electr... | 0810.4822v1 |
2009-02-13 | Charge pumping and the colored thermal voltage noise in spin valves | Spin pumping by a moving magnetization gives rise to an electric voltage over
a spin valve. Thermal fluctuations of the magnetization manifest themselves as
increased thermal voltage noise with absorption lines at the ferromagnetic
resonance frequency and/or zero frequency. The effect depends on the
magnetization confi... | 0902.2389v2 |
2009-10-29 | Spin Hamiltonians with resonating-valence-bond ground states | Quantum dimer models exhibit quantum critical points and liquid states when
the ground state is the resonating-valence bond (RVB) state. We construct
SU(2)-invariant spin-1/2 Hamiltonians with the same RVB ground state. The main
technical obstacle overcome is the fact that different "dimer" configurations
in the spin m... | 0910.5708v3 |
2010-04-23 | Charge and spin state readout of a double quantum dot coupled to a resonator | State readout is a key requirement for a quantum computer. For
semiconductor-based qubit devices it is usually accomplished using a separate
mesoscopic electrometer. Here we demonstrate a simple detection scheme in which
a radio-frequency resonant circuit coupled to a semiconductor double quantum
dot is used to probe i... | 1004.4047v1 |
2010-05-17 | Resonator-assisted entangling gate for singlet-triplet spin qubits in nanowire double quantum dots | We propose a resonator-assisted entangling gate for spin qubits with high
fidelity. Each spin qubit corresponds to two electrons in a nanowire double
quantum dot, with the singlet and one of the triplets as the logical qubit
states. The gate is effected by virtual charge dipole transitions. We include
noise in our mode... | 1005.2856v1 |
2010-06-29 | Electron spin resonance measurements of a demagnetizing field on the surface of metal samples | By comparing the signals of electron spin resonance (ESR) from two crystals
of a diamond (spin-labels) the demagnetizing field of the Co, Fe, and Ni
samples in the shape of strongly elongated ellipsoids of revolution (disks) has
been measured. The magnetic permeabilities of the metals in the external
magnetic field cor... | 1006.5668v1 |
2010-08-28 | Resonant Inelastic X-ray Scattering on Spin-Orbit Coupled Insulating Iridates | We determine how the elementary excitations of iridium-oxide materials, which
are dominated by a strong relativistic spin-orbit coupling, appear in Resonant
Inelastic X-ray Scattering (RIXS). Whereas the RIXS spectral weight at the L2
x-ray edge vanishes, we find it to be strong at the L3-edge. Applying this to
Sr2IrO4... | 1008.4862v1 |
2010-10-26 | Spin Nutation Induced by Atomic Motion in a Magnetic Lattice | An atom moving in a spatially periodic field experiences a temporary periodic
perturbation and undergoes a resonance transition between atomic internal
states when the transition frequency is equal to the atomic velocity divided by
the field period. We demonstrated that spin nutation was induced by this
resonant transi... | 1010.5319v1 |
2011-01-31 | Beam spin asymmetry in deeply virtual $π$ production | An interpretation of the beam spin azimuthal asymmetries measured at JLAB in
deep exclusive electroproduction of charged and neutral pions is presented. The
model combines a Regge pole approach with the effect of nucleon resonances. The
$s$- and $u$-channel contributions are described using a dual Bloom-Gilman
connecti... | 1101.6042v1 |
2011-05-16 | On the line shape of the electrically detected ferromagnetic resonance | This work reviews and examines two particular issues related with the new
technique of electrical detection of ferromagnetic resonance (FMR). This
powerful technique has been broadly applied for studying magnetization and spin
dynamics over the past few years. The first issue is the relation and
distinction between dif... | 1105.3236v1 |
2011-07-29 | Electron spin resonance shift in spin ladder compounds | We analyze the effects of different coupling anisotropies in spin-1/2 ladder
on the Electron Spin Resonance (ESR) shift. Combining a perturbative expression
in the anisotropies with temperature dependent Density Matrix Renormalization
Group (T-DMRG) computation of the short range correlations, we provide the full
tempe... | 1107.5965v2 |
2011-09-22 | Molecular structure refinement by direct fitting of atomic coordinates to experimental ESR spectra | An attempt is made to bypass spectral analysis and fit internal coordinates
of radicals directly to experimental liquid- and solid-state electron spin
resonance (ESR) spectra. We take advantage of the recently introduced
large-scale spin dynamics simulation algorithms and of the fact that the
accuracy of quantum mechan... | 1109.4815v1 |
2011-11-23 | Spin-orbit Interaction induced Singlet-Triplet Resonant Raman Transitions in Quantum-dot Helium | From our theoretical studies of resonant Raman transitions in two-electron
quantum dots (artificial helium atoms) we show that in this system, the
singlet-triplet Raman transitions are allowed (in polarized configuration) only
in the presence of spin-orbit interactions. With an increase of the applied
magnetic field th... | 1111.5460v1 |
2015-04-23 | Effects of the interplay between the orbital and spin currents in electroexcitation of light nuclei | The interplay between the orbital and spin currents in (e,e') excitations of
light nuclei is discussed. The microscopic analysis of E1 and M2 resonances was
performed within the particle-core coupling approximation (PCC) of the shell
model. The comparison of the theoretical results with the available
experimental data ... | 1504.06032v1 |
2015-12-01 | Discrete and Continuous Systems of Logic in Nuclear Magnetic Resonance | We implement several non-binary logic systems using the spin dynamics of
nuclear spins in nuclear magnetic resonance (NMR). The NMR system is a suitable
test system because of its high degree of experimental control; findings from
NMR implementations are relevant for other computational platforms exploiting
particles w... | 1512.00521v1 |
2016-01-25 | Theory of electron spin resonance in bulk topological insulators Bi2Se3, Bi2Te3 and Sb2Te3 | We report a theoretical study of electron spin resonance in bulk topological
insulators, such as Bi2Se3, Bi2Te3 and Sb2Te3. Using the effective four-band
model, we find the electron energy spectrum in a static magnetic field and
determine the response to electric and magnetic dipole perturbations,
represented by oscill... | 1601.06507v1 |
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