publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2003-12-29 | Spin-Orbit Ordering, Momentum Space Coexistence, and Cuprate Superconductivity | Motivated by the energetic advantage of achieving coherent enhancement of
effective spin-dependent interactions through approximate nesting, we propose
specific forms of spin ordering, whose form varies over the Fermi surface, for
the cuprate superconductors. Competing "spin-orbit" orderings involving order
parameters ... | 0312685v1 |
2008-07-16 | Upper and lower limits on the Crab pulsar's astrophysical parameters set from gravitational wave observations by LIGO: braking index and energy considerations | The Laser Interferometer Gravitational Observatory (LIGO) has recently
reached the end of its fifth science run (S5), having collected more than a
year worth of data. Analysis of the data is still ongoing but a positive
detection of gravitational waves, while possible, is not realistically expected
for most likely sour... | 0807.2485v1 |
2010-08-10 | Numerical study of the spin-1/2 Heisenberg antiferromagnet on a 48-site triangular lattice | We numerically study the magnetization and the dispersion relation of a
frustrated quantum spin system. Our method, which is named the stochastic state
selection method, is a kind of Monte Carlo method to give eigenstates of the
system through statistical averaging processes.
Using the stochastic state selection meth... | 1008.1612v1 |
2014-09-24 | Angular Momentum Transport via Internal Gravity Waves in Evolving Stars | Recent asteroseismic advances have allowed for direct measurements of the
internal rotation rates of many sub-giant and red giant stars. Unlike the
nearly rigidly rotating Sun, these evolved stars contain radiative cores that
spin faster than their overlying convective envelopes, but slower than they
would in the absen... | 1409.6835v1 |
2019-06-12 | Frequency-Division Multiplexing in Magnonic Logic Networks Based on Caustic-Like Spin-Wave Beams | Wave-based data processing by spin waves and their quanta, magnons, is a
promising technique to overcome the challenges which CMOS-based logic networks
are facing nowadays. The advantage of these quasi-particles lies in their
potential for the realization of energy efficient devices on the micro- to
nanometer scale due... | 1906.04993v2 |
2021-04-14 | Finite-element dynamic-matrix approach for spin-wave dispersions in magnonic waveguides with arbitrary cross section | We present a numerical approach to efficiently calculate spin-wave
dispersions and spatial mode profiles in magnetic waveguides of arbitrarily
shaped cross section with any non-collinear equilibrium magnetization which is
translationally invariant along the waveguide. Our method is based on the
propagating-wave dynamic... | 2104.06943v1 |
2020-01-24 | Dynamics of Spiral Spin Waves in Magnetic Nano-patches: Influence of Thickness and Shape | We explore the dynamics of spiral spin waves in Permalloy nano-elements with
variable aspect ratio of geometric dimensions, and their potential use as
improved spin wave emitters with no or little biasing field required. Numerical
results show that above a certain thickness, propagating spiral waves can be
obtained in ... | 2001.09053v1 |
2022-03-10 | Momentum, angular momentum, and spin of waves in an isotropic collisionless plasma | We examine the momentum and angular momentum (including spin) properties of
linear waves, both longitudinal (Langmuir) and transverse (electromagnetic), in
an isotropic nonrelativistic collisionless electron plasma. We focus on
conserved quantities associated with the translational and rotational
invariance of the wave... | 2203.05240v2 |
2011-01-27 | Magnetic excitations in one-dimensional spin-orbital models | We study the dynamics and thermodynamics of one-dimensional spin-orbital
models relevant for transition metal oxides. We show that collective spin,
orbital, and combined spin-orbital excitations with infinite lifetime can
exist, if the ground state of both sectors is ferromagnetic. Our main focus is
the case of effecti... | 1101.5301v1 |
2011-05-21 | Quantum states and linear response in dc and electromagnetic fields for charge current and spin polarization of electrons at Bi/Si interface with giant spin-orbit coupling | An expansion of the nearly free-electron model constructed by Frantzeskakis,
Pons and Grioni [Phys. Rev. B {\bf 82}, 085440 (2010)] describing quantum
states at Bi/Si(111) interface with giant spin-orbit coupling is developed and
applied for the band structure and spin polarization calculation, as well as
for the linea... | 1105.4215v1 |
2013-04-17 | Universal spin dynamics in two-dimensional Fermi gases | Harnessing spins as carriers for information has emerged as an elegant
extension to the transport of electrical charges. The coherence of such spin
transport in spintronic circuits is determined by the lifetime of spin
excitations and by spin diffusion. Fermionic quantum gases are a unique system
to study the fundament... | 1304.4980v1 |
2015-07-15 | Spin photonics and spin-photonic devices with dielectric metasurfaces | Dielectric metasurfaces with spatially varying birefringence and high
transmission efficiency can exhibit exceptional abilities for controlling the
photonic spin states. We present here some of our works on spin photonics and
spin-photonic devices with metasurfaces. We develop a hybrid-order Poincare
sphere to describe... | 1507.04064v2 |
2017-09-01 | Scaling of the Rashba spin-orbit torque in magnetic domain walls | Spin-orbit torque in magnetic domain walls was investigated by solving the
Pauli-Schr\"{o}dinger equation for the itinerant electrons. The Rashba
interaction considered is derived from the violation of inversion symmetry at
interfaces between ferromagnets and heavy metals. In equilibrium, the Rashba
spin-orbit interact... | 1709.00187v3 |
2019-11-06 | High spin mixing conductance and spin interface transparency at $Co_2Fe_{0.4}Mn_{0.6}Si$ Heusler alloy and Pt interface | Ferromagnetic materials exhibiting low magnetic damping ($\alpha$) and
moderately high saturation magnetization are required from the viewpoints of
generation, transmission and detection of spin wave. Since spin-to-charge
conversion efficiency is another important parameter, high spin mixing
conductance ($g_{r}^{\uparr... | 1911.02230v1 |
2014-06-04 | Long-lived spin plasmons in a spin-polarized two-dimensional electron gas | Collective charge-density modes (plasmons) of the clean two-dimensional
unpolarized electron gas are stable, for momentum conservation prevents them
from decaying into single-particle excitations. Collective spin-density modes
(spin plasmons) possess no similar protection and rapidly decay by production
of electron-hol... | 1406.0986v2 |
2018-12-10 | A Spin-Optical Nano Device | The photon spin is an important resource for quantum information processing
as is the electron spin in spintronics. However, for subwavelength confined
optical excitations, polarization as a global property of a mode cannot be
defined. Here, we show that any polarization state of a plane-wave photon can
reversibly be m... | 1812.03721v1 |
2019-05-19 | Persistent spin helix in Rashba-Dresselhaus ferroelectric CsBiNb2O7 | Ferroelectric Rashba semiconductors (FERSC) are a novel class of
multifunctional materials showing a giant Rashba spin splitting which can be
reversed by switching the electric polarization. Although they are excellent
candidates as channels in spin field effect transistors, the experimental
research has been limited s... | 1905.07744v2 |
2017-03-27 | Spin-incoherent Luttinger liquid of one-dimensional spin-1 Tonks-Girardeau Bose gas: Spin-dependent properties | Spin-incoherent Luttinger liquid (SILL) is a different universal class from
the Luttinger liquid.\ This difference results from the spin incoherence of the
system when the thermal energy of the system is higher than the spin excitation
energy.\ We consider one-dimensional spin-$1$ Bose gas in the SILL regime and
invest... | 1703.08949v1 |
2021-09-01 | Triplon current generation in solids | A triplon refers to a fictitious particle that carries angular momentum $S =
1$ corresponding to the elementary excitation in a broad class of quantum
dimerized spin systems. Such systems without magnetic order have long been
studied as a testing ground for quantum properties of spins. Although triplons
have been found... | 2109.00352v1 |
2022-11-24 | Elastic Valley Spin Controlled Chiral Coupling in Topological Valley Phononic Crystals | Distinct from the phononic valley pseudo-spin, the real physical spin of
elastic waves adds a novel tool-kit capable of envisaging the valley-spin
physics of topological valley phononic crystals from a local viewpoint. Here,
we report the observation of local elastic valley spin as well as the hidden
elastic spin-valle... | 2211.15389v1 |
2012-08-06 | Microscopic theory for the Doppler velocimetry of spin propagation in semiconductor quantum wells | We provide a microscopic theory for the Doppler velocimetry of spin
propagation in the presence of spatial inhomogeneity, driving electric field
and the spin orbit coupling in semiconductor quantum wells in a wide range of
temperature regime based on the kinetic spin Bloch equation. It is analytically
shown that under ... | 1208.1081v2 |
2016-02-09 | Characterizing the parent Hamiltonian for a complete set of orthogonal wave functions: An inverse quantum problem | We study the inverse problem of constructing an appropriate Hamiltonian from
a physically reasonable set of orthogonal wave functions for a quantum spin
system. Usually, we are given a local Hamiltonian and try to characterize the
relevant wave functions and energies (the spectrum) of the system. Here, we
take the oppo... | 1602.03120v2 |
2016-12-19 | Extending geometrical optics: A Lagrangian theory for vector waves | Even when neglecting diffraction effects, the well-known equations of
geometrical optics (GO) are not entirely accurate. Traditional GO treats wave
rays as classical particles, which are completely described by their
coordinates and momenta, but vector-wave rays have another degree of freedom,
namely, their polarizatio... | 1612.06184v2 |
2001-12-12 | Quantum Effects and Broken Symmetries in Frustrated Antiferromagnets | We investigate the interplay between frustration and zero-point quantum
fluctuations in the ground state of the triangular and $J_1{-}J_2$ Heisenberg
antiferromagnets, using finite-size spin-wave theory, exact diagonalization,
and quantum Monte Carlo methods. In the triangular Heisenberg antiferromagnet,
by performing ... | 0112207v1 |
1997-10-31 | Non-precessional spin-orbit effects on gravitational waves from inspiraling compact binaries to second post-Newtonian order | We derive all second post-Newtonian (2PN), non-precessional effects of spin-
orbit coupling on the gravitational wave forms emitted by an inspiraling binary
composed of spinning, compact bodies in a quasicircular orbit. Previous post-
Newtonian calculations of spin-orbit effects (at 1.5PN order) relied on a fluid
descr... | 9710134v1 |
2000-10-18 | The phase of a quantum mechanical particle in curved spacetime | We investigate the quantum mechanical wave equations for free particles of
spin 0,1/2,1 in the background of an arbitrary static gravitational field in
order to explicitly determine if the phase of the wavefunction is $S/\hbar =
\int p_{\mu} dx^{\mu} / \hbar$, as is often quoted in the literature. We work
in isotropic ... | 0010065v1 |
2010-10-13 | Electric-field control of spin waves at room temperature in multiferroic BiFeO3 | To face the challenges lying beyond current CMOS-based technology, new
paradigms for information processing are required. Magnonics proposes to use
spin waves to carry and process information, in analogy with photonics that
relies on light waves, with several advantageous features such as potential
operation in the THz... | 1010.2678v1 |
2021-05-12 | Coherent spin-wave transport in an antiferromagnet | Magnonics is a research field complementary to spintronics, in which the
quanta of spin waves (magnons) replace electrons as information carriers,
promising less energy dissipation. The development of ultrafast nanoscale
magnonic logic circuits calls for new tools and materials to generate coherent
spin waves with freq... | 2105.05886v1 |
2001-09-07 | Double quantum dots: interdot interactions, co-tunneling, and Kondo resonances without spin | We show that through an interdot off-site electron correlation in a double
quantum-dot (DQD) device, Kondo resonances emerge in the local density of
states without the electron spin-degree of freedom. We identify the physical
mechanism behind this phenomenon: rather than forming a spin singlet in the
device as required... | 0109145v1 |
2002-11-20 | Polarized Magnetic Wire Induced by Tunneling Through a Magnetic Impurity | Using the zero mode method we compute the conductance of a wire consisting of
a magnetic impurity coupled to two Luttinger liquid leads characterized by the
Luttinger exponent $\alpha(\leq 1)$. We find for resonance conditions, in which
the Fermi energy of the leads is close to a single particle energy of the
impurity,... | 0211447v1 |
2003-02-24 | Effects of a Collective Spin Resonance Mode on the STM Spectra of D-Wave Superconductors | A high-energy spin resonance mode is known to exist in many high-temperature
superconductors. Motivated by recent scanning tunneling microscopy (STM)
experiments in superconducting Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$, we study the
effects of this resonance mode on the local density of states (LDOS). The
coupling between... | 0302494v3 |
2004-06-01 | Quantum interference in resonant tunneling and single spin measurements | We consider the resonant tunneling through a multi-level system. It is
demonstrated that the resonant current displays quantum interference effects
due to a possibility of tunneling through different levels. We show that the
interference effects are strongly modulated by a relative phase of states
carrying the current.... | 0406010v3 |
2005-12-24 | Doping Dependence of Bilayer Resonant Spin Excitations in $\bf (Y,Ca)Ba_2Cu_3O_{6+x}$ | Resonant magnetic modes with odd and even symmetries were studied by
inelastic neutron scattering experiments in the bilayer high-$T_c$
superconductor $\rm Y_{1-x}Ca_{x}Ba_2Cu_3O_{6+y}$ over a wide doping range. The
threshold of the spin excitation continuum in the superconducting state,
deduced from the energies and s... | 0512634v1 |
2006-10-03 | Tunneling anisotropic magnetoresistance driven by resonant surface states: First-principles calculations of Fe(001) surface | Fully-relativistic first-principles calculations of the Fe(001) surface
demonstrate that resonant surface (interface) states may produce sizeable
tunneling anisotropic magnetoresistance in magnetic tunnel junctions with a
single magnetic electrode. The effect is driven by the spin-orbit coupling. It
shifts the resonant... | 0610061v2 |
2006-04-11 | Effect of Electric and Magnetic Fields on Spin Dynamics in the Resonant Electric Dipole Moment Experiment | A buildup of the vertical polarization in the resonant electric dipole moment
(EDM) experiment [Y. F. Orlov, W. M. Morse, and Y. K. Semertzidis, Phys. Rev.
Lett. 96, 214802 (2006)] is affected by a horizontal electric field in the
particle rest frame oscillating at a resonant frequency. This field is defined
by the Lor... | 0604095v2 |
2003-09-23 | Single-spin asymmetries of $d(γ,π)NN$ in the first resonance region | Incoherent photoproduction of pions on the deuteron in the first resonance
region is investigated with special emphasis on single-spin asymmetries. For
the elementary pion production operator an effective Lagrangian model which
includes the standard pseudovector Born terms and a resonance contribution from
the $\Delta$... | 0309061v2 |
2004-08-12 | Sub-collision hyperfine structure of nonlinear-optical resonance with field scanning | Some experimental evidences for methane are produced that the simple
transition from frequency scanning of nonlinear-optical resonances to magnetic
one may be accompanied with transition from sub-Doppler collisionally broadened
structure to sub-collision hyperfine one. It is conditioned by nonlinearity of
splitting of ... | 0408052v1 |
2005-07-05 | Stiff spinning torus of electromagnetic two-body motion | We study an orbit of the electromagnetic two-body problem that involves a
fast (stiff) spinning motion about a circular orbit. We give a multiscale
method of solution that solves for the fast timescale first. The solvability
condition of the asymptotic expansion demands resonances for the fast dynamics.
The stiff reson... | 0507033v3 |
2008-03-13 | Excitation transfer in two two-level systems coupled to an oscillator | We consider a generalization of the spin-boson model in which two different
two-level systems are coupled to an oscillator, under conditions where the
oscillator energy is much less than the two-level system energies, and where
the oscillator is highly excited. We find that the two-level system transition
energy is shi... | 0803.1906v1 |
2008-09-06 | Determination of magnetic order of the rare-earth ions in multiferroic TbMn2O5 | We have employed resonant x-ray magnetic scattering to specifically probe the
magnetic order of the rare-earth ions in multiferroic $\mathrm{TbMn_2O_5}$. Two
energy resonances were observed, one originated from the E1-E1 dipolar
transition and the other from the E2-E2 quadrupolar transition. These
resonances directly p... | 0809.1167v1 |
2009-08-03 | Evidence for the existence of Kondo coupled resonant modes in heavy fermions | Electron Spin Resonance (ESR) can microscopically probe both conduction
electrons (ce) and local moment (LM) spin systems in different materials. A ce
spin resonance (CESR) is observed in metallic systems based on light elements
or with enhanced Pauli susceptibility. LM ESR is frequently seen in compounds
with paramagn... | 0908.0044v1 |
2009-09-10 | Resonant and Kondo tunneling through molecular magnets | Transport through molecular magnets is studied in the regime of strong
coupling to the leads. We consider a resonant-tunneling model where the
electron spin in a quantum dot or molecule is coupled to an additional local,
anisotropic spin via exchange interaction. The two opposite regimes dominated
by resonant tunneling... | 0909.1956v2 |
2009-10-24 | Spin-torque driven ferromagnetic resonance in a nonlinear regime | Spin-valve based nanojunctions incorporating Co|Ni multilayers with
perpendicular anisotropy were used to study spin-torque driven ferromagnetic
resonance (ST-FMR) in a nonlinear regime. Perpendicular field swept resonance
lines were measured under a large amplitude microwave current excitation, which
produces a large ... | 0910.4678v1 |
2010-03-09 | Anisotropic Neutron Spin Resonance in Superconducting BaFe$_{1.9}$Ni$_{0.1}$As$_2$ | We use polarized inelastic neutron scattering to show that the neutron spin
resonance below $T_c$ in superconducting BaFe$_{1.9}$Ni$_{0.1}$As$_2$ ($T_c=20$
K) is purely magnetic in origin. Our analysis further reveals that the
resonance peak near 7~meV only occurs for the planar response. This challenges
the common per... | 1003.1926v2 |
2010-08-18 | Parameter dependence of resonant spin torque magnetization reversal | We numerically study ultra fast resonant spin torque (ST) magnetization
reversal in magnetic tunnelling junctions (MTJ) driven by current pulses having
a direct current (DC) and a resonant alternating current (AC) component. The
precessional ST dynamics of the single domain MTJ free layer cell are modelled
in the macro... | 1008.3060v1 |
2010-09-05 | Study of Efimov physics in two nuclear-spin sublevels of 7Li | Efimov physics in two nuclear-spin sublevels of bosonic lithium is studied
and it is shown that the positions and widths of recombination minima and
Efimov resonances are identical for both states within the experimental errors
which indicates that the short-range physics is nuclear-spin independent. We
also find that ... | 1009.0926v1 |
2010-10-29 | Spin anisotropy of the resonance in superconducting FeSe0.5Te0.5 | We have used polarized-neutron inelastic scattering to resolve the spin
fluctuations in superconducting FeSe0.5Te0.5 into components parallel and
perpendicular to the layers. A spin resonance at an energy of 6.5 meV is
observed to develop below T_c in both fluctuation components. The resonance
peak is anisotropic, with... | 1010.6204v2 |
2012-05-10 | Dipolar broadening of nuclear spin resonance under dynamical pumping | We study the polarisation dependence of the homogeneously broadened nuclear
spin resonance in a crystal. We employ a combinatorial method to restrict the
nuclear states to a fixed polarisation and show that the centre of the
resonance is shifted linearly with the nuclear polarisation by up to the zero
polarisation line... | 1205.2189v1 |
2012-06-15 | Charmed baryon resonances with heavy-quark spin symmetry | Charmed baryon resonances that are generated dynamically are studied within a
unitary baryon-meson coupled-channel model, which incorporates heavy-quark spin
symmetry. The extension of the SU(3) Weinberg-Tomozawa chiral Lagrangian to
SU(8) spin-flavor symmetry plus a suitable symmetry breaking is used. The model
produc... | 1206.3444v1 |
2012-06-23 | Scanning tunneling spectroscopy and Dirac point resonances due to a single Co adatom on gated graphene | Based on the standard tight-binding model of the graphene $\pi$-band
electronic structure, the extended H\"uckel model for the adsorbate and
graphene carbon atoms, and spin splittings estimated from density functional
theory (DFT), the Dirac point resonances due to a single cobalt atom on
graphene are studied. The rela... | 1206.5363v1 |
2013-03-14 | Hybrid Electron Spin Resonance and Whispering Gallery Mode Resonance Spectroscopy of Fe3+ in Sapphire | The development of a new era of quantum devices requires an understanding of
how paramagnetic dopants or impurity spins behave in crystal hosts. Here, we
describe a new spectroscopic technique which uses traditional Electron Spin
Resonance (ESR) combined with the measurement of a large population of
electromagnetic Whi... | 1303.3340v1 |
2013-04-17 | Odd-parity dynamically generated baryon resonances with beauty flavor | We study baryon resonances with heavy flavor in a molecular approach, thus as
dynamically generated by baryon-meson scattering. This is accomplished by using
a unitary coupled-channel model taking, as bare interaction, the extension of
the Weinberg-Tomozawa SU(3) Lagrangian. A special attention is payed to the
inclusio... | 1304.4747v1 |
2013-08-21 | Effective Hamiltonians for quasi-one-dimensional Fermi gases with spin-orbit coupling | We derive one-dimensional effective Hamiltonians for spin-orbit coupled Fermi
gases confined in quasi-one-dimensional trapping potentials. For energy regime
around the two-body bound state energy, the effective Hamiltonian takes a
two-channel form, where the population in transverse excited levels are
described by dres... | 1308.4511v1 |
2013-09-06 | Y(4260) and Y(4360) as mixed hadrocharmonium | Recent BESIII data indicate a significant rate of the process $e^+e^- \to h_c
\pi^+ \pi^-$ at the Y(4260) and Y(4360) resonances, implying a substantial
breaking of the heavy quark spin symmetry. We consider these resonances within
the picture of hadrocharmonium, i.e. of (relatively) compact charmonium
embedded in a li... | 1309.1681v3 |
2013-11-22 | Specific features of electron spin resonance in quasi-1D magnet β-TeVO4 | The angular and temperature dependences of single crystal ESR spectra at
X-band frequency of quasi 1D spin 1/2 antiferromagnetic zigzag chain system
{\beta}-TeVO4 are reported. Two resonance components in the ESR spectrum have
been detected: a weak narrow resonance on the top of the extremely broad
signal. The narrow l... | 1311.5754v1 |
2014-01-21 | Multiple-Channel Scattering Resonance of One-Dimensional Ultracold Spinor Bosons | So far the interaction of ultacold atoms can only be tuned within one
particular scattering channel near a resonance, where the spinor structure of
atomic isotopes is destroyed due to the typically large magnetic field. In this
Letter, we propose a scheme to realize {\it multiple-channel scattering
resonance} (MCSR) of... | 1401.5131v2 |
2014-07-19 | Interferometric resonance signatures of Majorana bound states | We calculate the current noise power spectrum in a nanoscopic interferometer
consisting of a Majorana bound state (MBS) and a localized spin. We show that
for large voltage (though less than the superconducting gap) several strong
resonance peaks appear at frequencies that depend on the Zeeman splitting of
the localize... | 1407.5179v3 |
2014-11-24 | Enhancement of Spin-transfer torque switching via resonant tunneling | We propose the use of resonant tunneling as a route to enhance the
spin-transfer torque switching characteristics of magnetic tunnel junctions.
The proposed device structure is a resonant tunneling magnetic tunnel junction
based on a MgO-semiconductor heterostructure sandwiched between a fixed magnet
and a free magnet.... | 1411.6454v1 |
2015-10-12 | Resonance-inclined optical nuclear spin polarization of liquids in diamond structures | Dynamic nuclear polarization (DNP) of molecules in a solution at room
temperature has potential to revolutionize nuclear magnetic resonance
spectroscopy and imaging. The prevalent methods for achieving DNP in solutions
are typically most effective in the regime of small interaction correlation
times between the electro... | 1510.03256v1 |
2015-10-22 | Effective resonant stability of Mercury | Mercury is the unique known planet that is situated in a 3:2 spin-orbit
resonance nowadays. Observations and models converge to the same conclusion:
the planet is presently deeply trapped in the resonance and situated at the
Cassini state $1$, or very close to it. We investigate the complete non-linear
stability of thi... | 1510.06543v1 |
2015-10-30 | On the rotation of co-orbital bodies in eccentric orbits | We investigate the resonant rotation of co-orbital bodies in eccentric and
planar orbits. We develop a simple analytical model to study the impact of the
eccentricity and orbital perturbations on the spin dynamics. This model is
relevant in the entire domain of horseshoe and tadpole orbit, for moderate
eccentricities. ... | 1510.09165v2 |
2015-12-07 | Angular dependent micro-ESR characterization of a locally doped Gd3+:Al2O3 system | Interfacing rare-earth doped crystals with superconducting circuit
architectures provides an attractive platform for quantum memory and transducer
devices. Here we present the detailed characterization of such a hybrid system:
a locally implanted rare-earth Gd$^{3+}$ in Al$_2$O$_3$ spin system coupled to
a superconduct... | 1512.02270v1 |
2016-06-07 | Resonant Raman scattering theory for Kitaev models and their Majorana fermion boundary modes | We study the inelastic light scattering response in two- (2D) and
three-dimensional (3D) Kitaev spin-liquid models with \ms band structures in
the symmetry classes BDI and D leading to protected gapless surface modes. We
present a detailed calculation of the resonant Raman/Brillouin scattering
vertex relevant to iridat... | 1606.02189v1 |
2016-10-14 | Magnetic resonances of multiferroic TbFe$_3$(BO$_3$)$_4$ | Low-energy magnetic excitations of the easy-axis antiferromagnet
TbFe$_3$(BO$_3$)$_4$ are investigated by far-infrared absorption and reflection
spectroscopy in high magnetic fields up to 30 T. The observed field dependence
of the resonance frequencies and the magnetization are reproduced by a
mean-field spin model for... | 1610.04455v1 |
2018-03-28 | Advanced Optimal Control Methods for Spin Systems | Work within this thesis advances optimal control algorithms for application
to magnetic resonance systems. Specifically, presenting a quadratically
convergent version of the gradient ascent pulse engineering method. The work is
formulated in a superoperator representation of the Liouville-von Neumann
equation.
A Newt... | 1803.10432v3 |
2018-05-10 | Broadband optomechanical transduction of nanomagnetic spin modes | The stable vortex state that occurs in micron-scale magnetic disks is one of
the most interesting and potentially useful phenomenon in nanomagnetism. A
variety of tools have been applied to study the vortex state, and collective
spin excitations corresponding to harmonic motion of the vortex, but to-date
these tools ha... | 1805.04186v1 |
2018-11-11 | Reconstruction of the DOS at the end of a S/F bilayer | Influence of a nonmagnetic surface on the density of states in a spin-split
superconductor, which is realized on the basis of a S/F bilayer, is
investigated. It is demonstrated that if the ferromagnet magnetization has a
defect in the form of a domain wall in the vicinity of the surface, the
superconducting density of ... | 1811.04373v2 |
2018-10-09 | Tunable amplification and cooling of a diamond resonator with a microscope | Controlling the dynamics of mechanical resonators is central to many quantum
science and metrology applications. Optomechanical control of diamond
resonators is attractive owing to diamond's excellent physical properties and
its ability to host electronic spins that can be coherently coupled to
mechanical motion. Using... | 1810.04196v2 |
2018-10-27 | Microwave control of thermal magnon spin transport | We observe that an rf microwave field strongly influences the transport of
incoherent thermal magnons in yttrium iron garnet. Ferromagnetic resonance in
the nonlinear regime suppresses thermal magnon transport by 95%. The transport
is also modulated at non-resonant conditions in two cases, both related to the
magnon ba... | 1810.11667v1 |
2019-08-21 | Skyrme Functional with Tensor Terms from ab initio Calculations: Results for the Spin-Orbit Splittings | A new Skyrme functional including tensor terms is presented. The tensor terms
have been determined by fitting the results of relativistic
Brueckner-Hartree-Fock (RBHF) studies on neutron-proton drops. Unlike all
previous studies, where the tensor terms were usually determined by fitting to
experimental data of single-p... | 1908.08090v1 |
2019-09-18 | Ferromagnetic resonance with magnetic phase selectivity by means of resonant elastic x-ray scattering on a chiral magnet | Cubic chiral magnets, such as Cu$_{2}$OSeO$_{3}$, exhibit a variety of
non-collinear spin textures, including a trigonal lattice of spin whirls,
so-called skyrmions. Using magnetic resonant elastic x-ray scattering (REXS) on
a crystalline Bragg peak and its magnetic satellites while exciting the sample
with magnetic fi... | 1909.08293v2 |
2020-02-19 | Single DNA Electron Spin Resonance Spectroscopy in Aqueous Solutions | Magnetic resonance spectroscopy of single biomolecules under
near-physiological conditions may substantially advance understanding of
biological function, yet remains very challenging. Here we use nitrogen-vacancy
centers in diamonds to detect electron spin resonance spectra of individual,
tethered DNA duplexes labeled... | 2002.08425v1 |
2020-02-20 | Optical Magnetometer: Quantum Resonances at pumping repetition rate of 1/n of the Larmor frequency | The response of a SERF atomic magnetometer to a repetitive short-pulsed pump
was investigated. Quantum sub-resonances at a repetition rate of $1/n$ of the
Larmor frequency of the magnetic field inside the shield are experimentally
observed and theoretically explained. This is a type of synchronization
phenomenon. Inves... | 2002.08631v4 |
2020-10-08 | Oscillatory magnetic fields for neutron resonance spin-echo spectroscopy | The generation of high frequency oscillatory magnetic fields represents a
fundamental component underlying the successful implementation of neutron
resonant spin-echo spectrometers, a class of instrumentation critical for the
high-resolution extraction of dynamical excitations (structural and magnetic)
in materials. In... | 2010.04161v2 |
2020-12-04 | Nutation in antiferromagnetic resonance | The effect of inertial spin dynamics is compared between ferromagnetic,
antiferromagnetic and ferrimagnetic systems. The linear response to an
oscillating external magnetic field is calculated within the framework of the
inertial Landau--Lifshitz--Gilbert equation using analytical theory and
computer simulations. Prece... | 2012.02790v3 |
2023-03-01 | Proton \textit{s}-resonance states of $^{12}$C and $^{14,15}$O within the Skyrme Hartree-Fock mean-field framework | The excitation functions of proton elastic scattering on $^{12}$C and
$^{14,15}$O nuclei at the energies near the proton-emission threshold are
calculated using the Skyrme Hartree-Fock (SHF) in continuum approach. For each
excitation function, the first resonance is identified as the $s$-state
resonance of the mean-fie... | 2303.00472v1 |
2023-03-23 | New Resonances of Supernova Neutrinos in Twisting Magnetic Fields | We investigate the effect of resonant spin conversion of the neutrinos
induced by the geometrical phase in a twisting magnetic field. We find that the
geometrical phase originating from the rotation of the transverse magnetic
field along the neutrino trajectory can trigger a new resonant spin conversion
of Dirac neutri... | 2303.13572v2 |
2023-06-21 | Spin Partners of the $B^{(*)}\bar{B}^{(*)}$ resonances with a different approach than the Breit-Wigner parameterization | In general, resonances are obtained by the Breit-Wigner parameterization.
However, it is not entirely appropriate to use this parameterization with
near-threshold resonances such as the $Z_b(10610)$ and the $Z_b(10650)$, as
Breit-Wigner does not contain the threshold effect. To eliminate this defect, a
recently propose... | 2306.12403v1 |
2023-08-03 | Bichromatic Rabi control of semiconductor qubits | Electrically-driven spin resonance is a powerful technique for controlling
semiconductor spin qubits. However, it faces challenges in qubit addressability
and off-resonance driving in larger systems. We demonstrate coherent
bichromatic Rabi control of quantum dot hole spin qubits, offering a
spatially-selective approac... | 2308.01720v1 |
2023-09-16 | Spin dependence in the $p$-wave resonance of ${^{139}\vec{\rm{La}}+\vec{n}}$ | We measured the spin dependence in a neutron-induced $p$-wave resonance by
using a polarized epithermal neutron beam and a polarized nuclear target. Our
study focuses on the 0.75~eV $p$-wave resonance state of $^{139}$La+$n$, where
largely enhanced parity violation has been observed. We determined the partial
neutron w... | 2309.08905v1 |
2023-12-17 | Hadronic decay of exotic mesons consisting of four charm quarks | In 2020, a di-$J/\psi$ resonance centered at around 6.9 $\mathrm{GeV}$ was
discovered by the LHCb Collaboration, and was later confirmed by the ATLAS and
CMS Collaborations. In addition to the 6.9-$\mathrm{GeV}$ resonance, its low
energy counterpart centered at around 6552 $\mathrm{MeV}$ was also observed by
the CMS Co... | 2312.10850v1 |
1996-10-21 | Geometro-Stochastically Quantized Fields with Internal Spin Variables | The use of internal variables for the description of relativistic particles
with arbitrary mass and spin in terms of scalar functions is reviewed and
applied to the stochastic phase space formulation of quantum mechanics.
Following Bacry and Kihlberg a four-dimensional internal spin space $\bar S$ is
chosen possessing ... | 9610046v1 |
2012-10-24 | An effectual template bank for the detection of gravitational waves from inspiralling compact binaries with generic spins | We report the construction of a three-dimensional template bank for the
search for gravitational waves from inspiralling binaries consisting of
spinning compact objects. The parameter space consists of two dimensions
describing the mass parameters and one "reduced-spin" parameter, which
describes the secular (non-prece... | 1210.6666v2 |
2021-10-26 | Understanding how fast black holes spin by analysing data from the second gravitational-wave catalogue | The Advanced LIGO and Virgo detectors have now observed approximately 50
black-hole-binary mergers, from which we can begin to infer how rapidly
astrophysical black holes spin. The LIGO-Virgo Collaboration (LVC) analysis of
detections up to the end of the first half of the third observing run (O3a)
appeared to uncover ... | 2110.13542v2 |
2017-03-20 | Hierarchical analysis of gravitational-wave measurements of binary black hole spin-orbit misalignments | Binary black holes may form both through isolated binary evolution and
through dynamical interactions in dense stellar environments. The formation
channel leaves an imprint on the alignment between the black hole spins and the
orbital angular momentum. Gravitational waves from these systems directly
encode information ... | 1703.06873v2 |
2021-11-26 | The effect of spin mismodeling on gravitational-wave measurements of the binary neutron star mass distribution | The binary neutron star (BNS) mass distribution measured with
gravitational-wave observations has the potential to reveal information about
the dense matter equation of state, supernova physics, the expansion rate of
the universe, and tests of General Relativity. As most current
gravitational-wave analyses measuring th... | 2111.13619v2 |
2022-06-22 | Probing Laser-Induced Spin-Current Generation in Synthetic Ferrimagnets Using Spin Waves | Several rare-earth transition-metal ferrimagnetic systems exhibit all-optical
magnetization switching upon excitation with a femtosecond laser pulse.
Although this phenomenon is very promising for future opto-magnetic data
storage applications, the role of non-local spin transport in these systems is
scarcely understoo... | 2206.10934v1 |
2023-10-06 | Effective-One-Body Numerical-Relativity waveform model for Eccentric spin-precessing binary black hole coalescence | Waveform models are important to gravitational wave data analysis. People
recently pay much attention to the waveform model construction for eccentric
binary black hole coalescence. Several Effective-One-Body Numerical-Relativity
waveform models of eccentric binary black hole coalescence have been
constructed. But none... | 2310.04552v1 |
2002-08-08 | Stability of Rossby waves in the beta-plane approximation | Floquet theory is used to describe the unstable spectrum at large scales of
the beta-plane equation linearized about Rossby waves. Base flows consisting of
one to three Rossby wave are considered analytically using continued fractions
and the method of multiple scales, while base flow with more than three Rossby
waves ... | 0208032v1 |
2014-10-15 | A comparison of weak-turbulence and PIC simulations of weak electron-beam plasma interaction | Quasilinear theory has long been used to treat the problem of a weak electron
beam interacting with plasma and generating Langmuir waves. Its extension to
weak-turbulence theory treats resonant interactions of these Langmuir waves
with other plasma wave modes, in particular ion-sound waves. These are strongly
damped in... | 1410.4046v2 |
2015-12-03 | Magnetospheric ULF waves driven by external sources | The multi-spacecraft missions (Cluster and THEMIS) observations allowed to
collect large data base for Ultra Low Frequency (ULF) waves properties, their
localization, and sources. Mainly here we focused on these recent results.
Studying of the source and characteristics of ULF waves can help in the
understanding of the... | 1512.00919v1 |
2018-06-04 | Density Waves and the Viscous Overstability in Saturn's Rings | This paper addresses resonantly forced spiral density waves in a dense
planetary ring which is close to the threshold for viscous overstability. We
solve numerically the hydrodynamical equations for a dense, axisymmetric thin
disk in the vicinity of an inner Lindblad resonance with a perturbing
satellite. The spiral sh... | 1806.01211v3 |
2019-01-15 | On the normal form of synchronization and resonance between vorticity waves in shear flow instability | A central mechanism of linearised two dimensional shear instability can be
described in terms of a nonlinear, action-at-a-distance, phase-locking
resonance between two vorticity waves which propagate counter to their local
mean flow as well as counter to each other. Here we analyze the prototype of
this interaction as ... | 1901.04905v2 |
2006-10-10 | Frequency Evolution of the Gravitational Waves for Compact Binaries | We present here a complete list of contributions to the gravitational wave
frequency evolution from compact binaries on circular orbits up to the second
post-Newtonian order by including the interaction of magnetic dipole moments,
quadrupole-monopole interactions together with the spin-orbit, the spin-spin
and the self... | 0610290v1 |
1995-03-09 | Spin Dynamics of the Triangular Heisenberg Antiferromagnet: A Schwinger Boson Approach | We have analyzed the two-dimensional antiferromagnetic Heisenberg model on
the triangular lattice using a Schwinger boson mean-field theory. By expanding
around a state with local $120^\circ$ order, we obtain, in the limit of
infinite spin, results for the excitation spectrum in complete agreement with
linear spin wave... | 9503048v1 |
1996-02-05 | Spin Excitation Spectrum of La$_{1-x}A_x$MnO$_3$ | As an effective model to describe perovskite-type manganates (La,$A$)MnO$_3$,
the double-exchange model on a cubic lattice is investigated. Spin excitation
spectrum of the model in the ground state is studied using the spin wave
approximation. Spin wave dispersion relation observed in the inelastic neutron
scattering e... | 9602017v1 |
1996-04-23 | Dynamics of coupled quantum spin chains | Static and dynamical properties of weakly coupled antiferromagnetic spin
chains are treated using a mean--field approximation for the interchain
coupling and exact results for the resulting effective one--dimensional
problem. Results for staggered magnetization, N\'eel temperature and spin wave
excitations are in agree... | 9604144v2 |
1996-10-14 | Low Temperature Properties of Quantum Antiferromagnetic Chains with Alternating Spins S=1 and 1/2 | We study the low-temperature properties of S=1 and 1/2 alternating spin
chains with antiferromagnetic nearest-neighbor exchange couplings using
analytical techniques as well as a quantum Monte Carlo method. The spin-wave
approach predicts two different low-lying excitations, which are gapped and
gapless, respectively. ... | 9610109v1 |
1999-08-31 | Linear spin and orbital wave theory for undoped manganites | We present a linear spin and orbital wave theory to account for the spin and
orbital orderings observed experimentally in undoped manganite. It is found
that the anisotropy of the magnetic structure is closely related to the orbital
ordering, and the Jahn-Teller effect stabilizes the orbital ordering. The phase
diagram... | 9908464v1 |
1999-10-04 | Longitudinal magnetic excitations in classical spin systems | Using spin dynamics simulations we predict the splitting of the longitudinal
spin wave peak in all antiferromagnets with single site anisotropy into two
peaks separated by twice the energy gap at the Brillouin zone center. This
phenomenon has yet to be observed experimentally but can be easily investigated
through neut... | 9910031v1 |
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