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2021-06-29 | Spin pumping in noncollinear antiferromagnets | The ac spin pumping of noncollinear antiferromagnets is theoretically
investigated. Starting from an effective action description of the spin system,
we derive the Onsager coefficients connecting the spin pumping and
spin-transfer torque associated with the dynamics of the SO(3)-valued
antiferromagnetic order parameter... | 2106.15187v2 |
2021-01-29 | Comparison of Spin-Wave Modes in Connected and Disconnected Artificial Spin Ice Nanostructures Using Brillouin Light Scattering Spectroscopy | Artificial spin ice systems have seen burgeoning interest due to their
intriguing physics and potential applications in reprogrammable memory, logic
and magnonics. Integration of artificial spin ice with functional magnonics is
a relatively recent research direction, with a host of promising results. As
the field progr... | 2101.12619v2 |
2003-02-05 | Theory of the NMR relaxation rates in cuprate superconductors with field induced antiferromagnetic order | Based on a model Hamiltonian with a d-wave pairing interaction and a
competing antiferromagnetic interaction, we numerically study the site
dependence of the nuclear spin resonance (NMR) relaxation rate T_1^{-1} as a
function of temperature for a d-wave superconductor(DSC) with magnetic field
induced spin density wave ... | 0302114v1 |
2006-09-05 | Study on N Omega-bar systems in a chiral quark model | The N Omega-bar systems with spin S=1 and S=2 are dynamically investigated
within the framework of the chiral SU(3) quark model and the extended chiral
SU(3) quark model by solving the resonating group method (RGM) equation. The
model parameters are taken from our previous work, which gave a good
description of the ene... | 0609008v1 |
2007-05-29 | Exotic Mott phases of the extended t--J model on the checkerboard lattice at commensurate densities | Coulomb repulsion between electrons moving on a frustrated lattice can give
rise, at simple commensurate electronic densities, to exotic insulating phases
of matter. Such a phenomenon is illustrated using an extended t--J model on a
planar pyrochlore lattice for which the work on the quarter-filled case
[cond-mat/07023... | 0705.4198v1 |
2008-10-24 | Parity doubling in the high baryon spectrum: near-degenerate three-quark quartets | We report on the first calculation of excited baryons with a chirally
symmetric Hamiltonian, modeled after Coulomb gauge QCD (or upgraded from the
Cornell meson potential model to a field theory in all of Fock-space) showing
the insensitivity to chiral symmetry breaking. As has recently been understood,
this leads to d... | 0810.4462v2 |
2009-10-23 | 139La NMR evidence for phase solitons in the ground state of overdoped manganites | Hole doped transition metal oxides are famous due to their extraordinary
charge transport properties, such as high temperature superconductivity
(cuprates) and colossal magnetoresistance (manganites). Astonishing, the mother
system of these compounds is a Mott insulator, whereas important role in the
establishment of t... | 0910.4494v1 |
2009-12-11 | Thermal Tides in Fluid Extrasolar Planets | Asynchronous rotation and orbital eccentricity lead to time-dependent
irradiation of the close-in gas giant exoplanets -- the hot Jupiters. This
time-dependent surface heating gives rise to fluid motions which propagate
throughout the planet. We investigate the ability of this "thermal tide" to
produce a quadrupole mom... | 0912.2313v1 |
2011-01-02 | How does a synthetic non-Abelian gauge field influence the bound states of two spin-$\half$ fermions? | We study the bound states of two spin-$\half$ fermions interacting via a
contact attraction (characterized by a scattering length) in the singlet
channel in 3D space in presence of a uniform non-Abelian gauge field. The
configuration of the gauge field that generates a Rashba type spin-orbit
interaction is described by... | 1101.0411v2 |
2013-10-21 | Ab initio calculations of indium arsenide in the wurtzite phase: structural, electronic and optical properties | Most III-V semiconductors, which acquire the zinc-blende phase as bulk
materials, adopt the metastable wurtzite phase when grown in the form of
nanowires. These are new semiconductors with new optical properties, in
particular, a different electronic band gap when compared with that grown in
the zinc-blende phase. The ... | 1310.5652v3 |
2014-11-14 | Light Higgs channel of the resonant decay of magnon condensate in superfluid $^3$He-B | In superfluids the order parameter, which describes spontaneous symmetry
breaking, is an analogue of the Higgs field in the Standard Model of particle
physics. Oscillations of the field amplitude are massive Higgs bosons, while
oscillations of the orientation are massless Nambu-Goldstone bosons. The
125~GeV Higgs boson... | 1411.3983v4 |
2015-12-31 | Fermion superfluid with hybridized $s$- and $p$-wave pairings | Ever since the pioneering work of Bardeen, Cooper and Schrieffer in the
1950s, exploring novel pairing mechanisms for fermion superfluids has become
one of the central tasks in modern physics. Here, we investigate a new type of
fermion superfluid with hybridized $s$- and $p$-wave pairings in an ultracold
spin-1/2 Fermi... | 1512.09313v2 |
2017-09-08 | Observation of $^{6}$He+$t$ cluster states in $^{9}$Li | $^{6}$He+$t$ cluster states of exited $^{9}$Li have been measured by 32.7
MeV/nucleon $^{9}$Li beams bombarding on $^{208}$Pb target. Two resonant states
are clearly observed with the excitation energies at 9.8 MeV and 12.6 MeV and
spin-parity of 3/2$^{-}$ and 7/2$^{-}$ respectively. These two states are
considered to ... | 1709.02515v3 |
2017-11-27 | Cavity Magnon Polaritons with Lithium Ferrite and 3D Microwave Resonators at milli-Kelvin Temperatures | Single crystal Lithium Ferrite (LiFe) spheres of sub-mm dimension are
examined at mK temperatures, microwave frequencies and variable DC magnetic
field, for use in hybrid quantum systems and condensed matter and fundamental
physics experiments. Strong coupling regimes of the photon-magnon interaction
(cavity magnon pol... | 1711.09980v2 |
2018-03-28 | Modification of magnetic fluctuations by interfacial interactions in artificially engineered heavy-fermion superlattices | Recent progress in the fabrication techniques of superlattices (SLs) has made
it possible to sandwich several-layer-thick block layers (BLs) of heavy-fermion
superconductor CeCoIn5 between conventional-metal YbCoIn5 BLs or
spin-density-wave-metal CeRhIn5 BLs of a similar thickness. However, the
magnetic state in each B... | 1803.10382v2 |
2018-06-03 | Field evolution of magnons in $α$-RuCl$_3$ by high-resolution polarized terahertz spectroscopy | The Kitaev quantum spin liquid (KSL) is a theoretically predicted state of
matter whose fractionalized quasiparticles are distinct from bosonic magnons,
the fundamental excitation in ordered magnets. The layered honeycomb
antiferromagnet $\alpha$-RuCl$_3$ is a KSL candidate material, as it can be
driven to a magnetical... | 1806.00855v2 |
2019-06-21 | Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry | We have studied the meson-baryon $S-$wave interaction, using coupled
channels, in the isoscalar hidden-charm strange sector and $J^P = 1/2^-,3/2^-$
and $5/2^-$. We impose constraints of heavy quark spin symmetry in the
interaction and obtain the non vanishing matrix elements from an extension of
the local hidden gauge ... | 1906.09010v1 |
2020-08-26 | Investigation of the Lightest Hybrid Meson Candidate with a Coupled-Channel Analysis of $\bar{p}p$-, $π^- p$- and $ππ$-Data | A sophisticated coupled-channel analysis is presented that combines different
processes: the channels $\pi^0\pi^0\eta$, $\pi^0\eta\eta$ and $K^+K^-\pi^0$
from $\bar{p}p$ annihilations, the P- and D-wave amplitudes of the $\pi\eta$
and $\pi\eta^\prime$ systems produced in $\pi^- p$ scattering, and data from
$\pi\pi$-sca... | 2008.11566v3 |
2016-03-06 | Commensurate and incommensurate magnetic order in spin-1 chains stacked on the triangular lattice in Li$_2$NiW$_2$O$_8$ | We report thermodynamic properties, magnetic ground state, and microscopic
magnetic model of the spin-1 frustrated antiferromaget Li$_{2}$NiW$_{2}$O$_{8}$
showing successive transitions at $T_{\rm N1}\simeq 18$ K and $T_{\rm N2}\simeq
12.5$ K in zero field. Nuclear magnetic resonance and neutron diffraction
reveal coll... | 1603.01811v2 |
2016-12-20 | Magnetism of PrFeAsO parent compound for iron-based superconductors: Mössbauer spectroscopy study | Moessbauer spectroscopy measurements were performed for the temperature range
between 4.2 K and 300 K in a transmission geometry applying 14.41-keV resonant
line in 57Fe for PrFeAsO the latter being a parent compound of the iron-based
superconductors belonging to the '1111' family. It was found that an itinerant
3d mag... | 1612.06776v3 |
2019-09-17 | Dynamics of a periodic $XY$ chain coupled to a photon mode | We study the real-time dynamics of a periodic $XY$ system exposed to a
composite field comprised of a constant homogeneous magnetic and a quantized
circularly polarized electromagnetic fields. The interaction between the
quantized mode and spin-magnetic moments is modeled by the Dicke Hamiltonian.
The rotating wave app... | 1909.07666v2 |
2020-05-09 | Observation of interaction induced blockade and local spin freezing in a NMR quantum simulator | We experimentally emulate interaction induced blockade and local spin
freezing in two and three qubit Nuclear Magnetic Resonance (NMR) architecture.
These phenomena are identical to the Rydberg blockade and Rydberg biased
freezing. In Rydberg blockade, the simultaneous excitation of two or more atoms
is blocked due to ... | 2005.04445v2 |
2020-06-07 | Magnetocrystalline anisotropy of the easy-plane metallic antiferromagnet Fe$_2$As | Magnetocrystalline anisotropy is a fundamental property of magnetic materials
that determines the dynamics of magnetic precession, the frequency of spin
waves, the thermal stability of magnetic domains, and the efficiency of
spintronic devices. We combine torque magnetometry and density functional
theory calculations t... | 2006.04192v1 |
2021-01-10 | Optical magnons with dominant bond-directional exchange interactions in a honeycomb lattice iridate $α$-Li$_{2}$IrO$_{3}$ | We have used resonant inelastic x-ray scattering to reveal optical magnons in
a honeycomb lattice iridate $\alpha$-Li$_{2}$IrO$_{3}$. The spectrum in the
energy region 20-25 meV exhibits momentum dependence, of which energy is
highest at the location of the magnetic Bragg peak, ($\textit{h}, \textit{k}$)
= ($\pm$0.32, ... | 2101.03471v1 |
2021-05-03 | Large Angle MIEZE with Extended Fourier Time | Modulation of Intensity Emerging from Zero Effort (MIEZE) is a neutron
resonant spin echo technique which allows one to measure time correlation
scattering functions in materials by implementing radio-frequency (RF)
intensity modulation at the sample and detector. The technique avoids neutron
spin manipulation between ... | 2105.00604v1 |
2021-12-15 | Commensurate vortex core switching in magnetic nanodisks at Gigahertz frequencies | The development of future spintronic applications requires a thorough and
fundamental understanding of the magnetisation dynamics. Of particular interest
are magnetic nanodisks, in which the vortex state emerges as a stable spin
configuration. Here, we focus on how the vortex core polarisation can be
reversed periodica... | 2112.08031v1 |
2022-05-24 | Competing magnetic phases in the frustrated spin-1/2 chain compound $β$-TeVO$_4$ probed by NMR | In frustrated spin-1/2 chains the competition between the nearest- and
next-nearest-neighbor exchange interactions leads to a rich phase diagram that
becomes even richer in the presence of perturbations in their material
realizations. These effects are still largely unexplored, so that new insight
into static and dynam... | 2205.11875v1 |
2022-07-15 | Origin of exchange bias in [Co/Pt]ML/Fe multilayer with orthogonal magnetic anisotropies | Magnetization reversal of soft ferromagnetic Fe layer, coupled to [Co/Pt]ML
multilayer [ML] with perpendicular magnetic anisotropy (PMA), has been studied
in-situ with an aim to understand the origin of exchange bias (EB) in
orthogonal magnetic anisotropic systems. The interface remanant state of the ML
is modified by ... | 2207.07376v2 |
2022-07-29 | Room Temperature DNP of Diamond Powder Using Frequency Modulation | Dynamic nuclear polarization (DNP) is a method of enhancing NMR signals via
the transfer of polarization from electron spins to nuclear spins using
on-resonance microwave (MW) irradiation. In most cases, monochromatic
continuous-wave (MCW) MW irradiation is used. Recently, several groups have
shown that the use of freq... | 2207.14731v1 |
2023-07-07 | Microscopic analysis of relaxation behavior in nonlinear optical conductivity of graphene | We present here a general formulation for the interband dynamical optical
conductivity in the nonlinear regime of graphene in the presence of a quantum
bath comprising phonons and electrons. Our main focus is the relaxation
behavior of the quantum solid of graphene perturbed by an oscillatory electric
field. Considerin... | 2307.03392v1 |
2023-11-10 | A Universal Method to Generate Hyperpolarisation in Beams and Samples | Sizable hyperpolarisation, i.e. an imbalance of the occupation numbers of
nuclear spins in a sample deviating from thermal equilibrium, is needed in
various fields of science. For example, hyperpolarised tracers are utilised in
magnetic resonance imaging in medicine (MRI) and polarised beams and targets
are employed in... | 2311.05976v1 |
2023-11-10 | Comparing continuous and pulsed nitrogen-vacancy DC magnetometry in the optical-power-limited regime | Ensembles of nitrogen-vacancy (NV) center spins in diamond offer a robust,
precise and accurate magnetic sensor. As their applications move beyond the
laboratory, practical considerations including size, complexity, and power
consumption become important. Here, we compare two commonly-employed NV
magnetometry technique... | 2311.06055v1 |
2001-02-08 | New selection rules for resonant Raman scattering on quantum wires | The bosonisation technique is used to calculate the resonant Raman spectrum
of a quantum wire with two electronic sub-bands occupied. Close to resonance,
the cross section at frequencies in the region of the inter sub-band
transitions shows distinct peaks in parallel polarisation of the incident and
scattered light tha... | 0102144v1 |
2007-01-01 | Contribution of spin 1/2 and 3/2 resonances to two-photon exchange effects in elastic electron-proton scattering | We calculate contributions of hadron resonances to two-photon exchange
effects in electron-proton scattering. In addition to the nucleon and P33
resonance, the following heavier resonances are included as intermediate states
in the two-photon exchange diagrams: D13, D33, P11, S11 and S31. We show that
the corrections d... | 0701003v2 |
2011-03-29 | Two energy scales in the magnetic resonance spectrum of electron and hole doped pnictide superconductors | We argue that a multiband superconductor with sign-changing gaps may have
multiple spin resonances. We calculate the RPA-based spin resonance spectra of
a pnictide superconductor by using the five band tight-binding model or
angle-resolved photoemission spectroscopy (ARPES) Fermi surface (FS) and
experimental values of... | 1103.5787v1 |
2011-12-11 | A pre-Caloris synchronous rotation for Mercury | The planet Mercury is locked in a spin-orbit resonance where it rotates three
times about its spin axis for every two orbits about the Sun. The current
explanation for this unique state assumes that the initial rotation of this
planet was prograde and rapid, and that tidal torques decelerated the planetary
spin to this... | 1112.2384v1 |
2012-10-17 | Odd parity bottom-flavored baryon resonances | The LHCb Collaboration has recently observed two narrow baryon resonances
with beauty. Their masses and decay modes look consistent with the quark model
orbitally excited states Lambda_b(5912) and Lambda*_b(5920), with quantum
numbers J^P=1/2^- and 3/2^-, respectively. We predict the existence of these
states within a ... | 1210.4755v3 |
2013-04-24 | Magnonlike dispersion of spin resonance in Ni-doped BaFe$_2$As$_2$ | Inelastic neutron scattering measurements on
Ba(Fe$_{0.963}$Ni$_{0.037}$)$_2$As$_2$ manifest a neutron spin resonance in the
superconducting state with anisotropic dispersion within the Fe layer. Whereas
the resonance is sharply peaked at Q$_{AFM}$ along the orthorhombic a axis, the
resonance disperses upwards away fro... | 1304.6657v1 |
2014-03-11 | On the disputed $π_1(1600)$ resonance and observation of a new iso-vector resonance | The COMPASS experiment at CERN delivers new results on the search for exotic
mesons. A spin-exotic resonance, the $\pi_1(1600)$, was reported by several
experiments in the past. Those observations are, however, still to date highly
disputed in the community. Especially the $\rho\pi$ decay channel allows for
simultaneou... | 1403.2667v1 |
2015-07-13 | Coupling quantum circuits to magnetic molecular qubits | This thesis explores the coupling of magnetic systems to quantum circuits in
the context of quantum computing applications. In particular we study the
coupling of superconducting coplanar waveguide resonators to Single Molecule
Magnets (SMMs) . The combination of approaches from the fields of Cavity
Quantum electrodyna... | 1507.03579v2 |
2018-07-02 | Tunable Nb superconducting resonators based upon a Ne-FIB-fabricated constriction nanoSQUID | Hybrid superconducting--spin systems offer the potential to combine highly
coherent atomic quantum systems with the scalability of superconducting
circuits. To fully exploit this potential requires a high quality-factor
microwave resonator, tunable in frequency and able to operate at magnetic
fields optimal for the spi... | 1807.00582v2 |
2024-02-12 | Spin orbit resonance cascade via core shell model. Application to Mercury and Ganymede | We discuss a model describing the spin orbit resonance cascade. We assume
that the primary has a two-layer (core-shell) structure: it is composed by a
thin solid crust and an inner and heavier solid core that are interacting due
to the presence of a fluid interface. We assume two sources of dissipation: a
viscous one, ... | 2402.07650v1 |
2005-09-06 | Non-steady-state double-resonant extremely asymmetrical scattering of waves in periodic gratings | Double-resonant extremely asymmetrical scattering (DEAS) is a strongly
resonant type of Bragg scattering in two joint or separated uniform gratings
with different phases. It is characterised by a very strong increase of the
scattered and incident wave amplitudes inside and between the gratings at a
resonant phase shift... | 0509041v1 |
2009-03-05 | Nonlinear resonant absorption of fast magnetoacoustic waves in strongly anisotropic and dispersive plasmas | The nonlinear theory of driven magnetohydrodynamics (MHD) waves in strongly
anisotropic and dispersive plasmas, developed for slow resonance by Clack and
Ballai [Phys. Plasmas, 15, 2310 (2008)] and Alfv\'en resonance by Clack
\emph{et al.} [A&A,494, 317 (2009)], is used to study the weakly nonlinear
interaction of fast... | 0903.0948v1 |
2010-09-24 | Spatial Damping of Propagating Kink Waves in Prominence Threads | Transverse oscillations and propagating waves are frequently observed in
threads of solar prominences/filaments and have been interpreted as kink
magnetohydrodynamic (MHD) modes. We investigate the spatial damping of
propagating kink MHD waves in transversely nonuniform and partially ionized
prominence threads. Resonan... | 1009.4871v1 |
2010-11-09 | Surfatron acceleration of a relativistic particle by electromagnetic plane wave | We study motion of a relativistic charged particle in a plane slow
electromagnetic wave and background uniform magnetic field. The wave propagates
normally to the background field. Under certain conditions, the resonance
between the wave and the Larmor motion of the particle is possible. Capture
into this resonance res... | 1011.2236v1 |
2013-05-28 | Rational solitons of wave resonant interaction models | Integrable models of resonant interaction of two or more waves in 1+1
dimensions are known to be of applicative interest in several areas. Here we
consider a system of three coupled wave equations which includes as special
cases the vector Nonlinear Schroedinger equations and the equations describing
the resonant inter... | 1305.6636v1 |
2013-07-12 | Numerical modeling of nonlinear acoustic waves in a tube connected with Helmholtz resonators | Acoustic wave propagation in a one-dimensional waveguide connected with
Helmholtz resonators is studied numerically. Finite amplitude waves and viscous
boundary layers are considered. The model consists of two coupled evolution
equations: a nonlinear PDE describing nonlinear acoustic waves, and a linear
ODE describing ... | 1307.3373v2 |
2013-07-16 | TE Wave Measurement and Modeling | In the TE wave method, microwaves are coupled into the beam-pipe and the
effect of the electron cloud on these microwaves is measured. An electron cloud
(EC) density can then be calculated from this measurement. There are two
analysis methods currently in use. The first treats the microwaves as being
transmitted from o... | 1307.4315v1 |
2014-12-17 | Traveling Waves and their Tails in Locally Resonant Granular Systems | In the present study, we revisit the theme of wave propagation in locally
resonant granular crystal systems, also referred to as Mass-in-Mass systems. We
use 3 distinct approaches to identify relevant traveling waves. The first
consists of a direct solution of the traveling wave problem. The second one
consists of the ... | 1412.5462v1 |
2019-06-24 | Universal mechanism of low-frequency brain rhythm formation through nonlinear coupling of high-frequency spiking-like activity | A universal mechanism of emergence of synchronized low frequency brain wave
field activity is presented as a result of nonlinear coupling with flat
frequency neuronal forcing. The mechanism utilizes a unique dispersion
properties of weakly-evanescent wave--like brain surface modes that are
predicted to exist within a i... | 1906.09716v1 |
2021-04-16 | High-quality level-crossing resonances under counterpropagating circularly polarized light waves for applications in atomic magnetometry | Level-crossing (LC) resonances in a buffer-gas-filled cesium vapor cell are
studied under counterpropagating pump and probe light waves with opposite
circular polarizations. The waves excite the D$_1$-line ground-state level
$F_g$$=\,$$4$, while a transverse magnetic field (${\rm B}_x$$\perp$${\rm k}$)
is scanned aroun... | 2104.08192v1 |
2019-09-10 | Faraday and Resonant Waves in Dipolar Cigar-Shaped Bose-Einstein Condensates | Faraday and resonant density waves emerge in Bose-Einstein condensates as a
result of harmonic driving of the system. They represent nonlinear excitations
and are generated due to the interaction-induced coupling of collective
oscillation modes and the existence of parametric resonances. Using a
mean-field variational ... | 1909.04637v1 |
2020-07-20 | Surface wave non-reciprocity via time-modulated metamaterials | We investigate how Rayleigh waves interact with modulated resonators located
on the free surface of a semi-infinite elastic medium. We begin by studying the
dynamics of a single resonator with time-modulated stiffness. In particular, we
evaluate the accuracy of an analytical approximation of the resonator response
and ... | 2007.10531v2 |
2021-06-24 | Landau damping of electron-acoustic waves due to multi-plasmon resonances | The linear and nonlinear theories of electron-acoustic waves (EAWs) are
studied in a partially degenerate quantum plasma with two-temperature electrons
and stationary ions. The initial equilibrium of electrons is assumed to be
given by the Fermi-Dirac distribution at finite temperature. By employing the
multi-scale asy... | 2106.12754v2 |
2021-09-27 | Mitigation of Rayleigh-like waves in granular media via multi-layer resonant metabarriers | In this work, we experimentally and numerically investigate the propagation
and attenuation of vertically polarized surface waves in an unconsolidated
granular medium equipped with small-scale metabarriers of different depths,
i.e., arrays composed of one, two, and three embedded layers of sub-wavelength
resonators. Ou... | 2109.12917v1 |
2022-12-09 | Resonance states at Casati wave numbers for the 3-disk billiard | Resonance states of the 3-disk scattering system are presented for the first
Casati wave number $k \approx 912$ and the second Casati wave number $k \approx
91242$. They show multifractal structure in phase space, similar to the
pioneering work by Casati et al. [Physica D 131, 311 (1999)] for an open
chaotic quantum ma... | 2212.04787v1 |
2023-01-23 | Comment on: "Interacting quantum and classical waves: Resonant and non-resonant energy transfer to electrons immersed in an intense electromagnetic wave'' [Phys. Plasmas 29, 022107 (2022)] | A comment on the paper by S. M. Mahajan and F. A. Asenjo "Interacting quantum
and classical waves: Resonant and non-resonant energy transfer to electrons
immersed in an intense electromagnetic wave" [Phys. Plasmas 29, 022107 (2022)]
where the authors use a model based on the Klein-Gordon equation to discuss
particle en... | 2301.09718v2 |
2023-11-30 | Parametric resonance of gravitational waves in general scalar-tensor theories | Gravitational waves offer a potent mean to test the underlying theory of
gravity. In general theories of gravity, such as scalar-tensor theories, one
expects modifications in the friction term and the sound speed in the
gravitational wave equation. In that case, rapid oscillations in such
coefficients, e.g. due to an o... | 2311.18546v1 |
2021-04-19 | Orbital ordering and fluctuations in a kagome superconductor CsV3Sb5 | Recently, competing electronic instabilities, including superconductivity and
density-wave-like order, have been discovered in vanadium-based kagome metals
AV3Sb5 (A = K, Rb, Cs) with a nontrivial band topology. This finding stimulates
wide interests to study the interplay of these competing electronic orders and
possi... | 2104.09173v1 |
2020-07-24 | Multiband gravitational-wave searches for ultralight bosons | Gravitational waves may be one of the few direct observables produced by
ultralight bosons, conjectured dark matter candidates that could be the key to
several problems in particle theory, high-energy physics and cosmology. These
axionlike particles could spontaneously form "clouds" around astrophysical
black holes, le... | 2007.12793v2 |
2007-10-28 | Some symmetry properties of spin currents and spin polarizations in multi-terminal mesoscopic spin-orbit coupled systems | We study theoretically some symmetry properties of spin currents and spin
polarizations in multi-terminal mesoscopic spin-orbit coupled systems. Based on
a scattering wave function approach, we show rigorously that in the equilibrium
state no finite spin polarizations can exist in a multi-terminal mesoscopic
spin-orbit... | 0710.5316v1 |
2007-02-27 | Nuclear Magnetic Resonance Imaging with 90 nm Resolution | Magnetic resonance imaging, based on the manipulation and detection of
nuclear spins, is a powerful imaging technique that typically operates on the
scale of millimeters to microns. Using magnetic resonance force microscopy, we
have demonstrated that magnetic resonance imaging of nuclear spins can be
extended to a spat... | 0702664v1 |
2008-12-31 | A new mechanism of electric dipole spin resonance: hyperfine coupling in quantum dots | A recently discovered mechanism of electric dipole spin resonance, mediated
by the hyperfine interaction, is investigated experimentally and theoretically.
The effect is studied using a spin-selective transition in a GaAs double
quantum dot. The resonant frequency is sensitive to the instantaneous hyperfine
effective f... | 0901.0124v1 |
2009-10-15 | Disorder effect of resonant spin Hall effect in a tilted magnetic field | We study the disorder effect of resonant spin Hall effect in a two-dimension
electron system with Rashba coupling in the presence of a tilted magnetic
field. The competition between the Rashba coupling and the Zeeman coupling
leads to the energy crossing of the Landau levels, which gives rise to the
resonant spin Hall ... | 0910.2869v1 |
2010-01-19 | Spin determination of single-produced resonances at hadron colliders | We study the production of a single resonance at the LHC and its decay into a
pair of Z bosons. We demonstrate how full reconstruction of the final states
allows us to determine the spin and parity of the resonance and restricts its
coupling to vector gauge bosons. Full angular analysis is illustrated with the
simulati... | 1001.3396v2 |
2011-04-14 | Odd Parity Light Baryon Resonances | We use a consistent SU(6) extension of the meson-baryon chiral Lagrangian
within a coupled channel unitary approach in order to calculate the T-matrix
for meson-baryon scattering in s-wave. The building blocks of the scheme are
the pion and nucleon octets, the rho nonet and the Delta decuplet. We identify
poles in this... | 1104.2737v2 |
2011-05-23 | Heavy quark spin structure in Z_b resonances | We discuss the heavy quark spin structure of the recently observed `twin'
resonances $Z_b(10610)$ and $Z_b(10650)$ assuming that these are mostly of a
`molecular' type, i.e. that their internal dynamics is dominated by the
coupling to meson pairs $B^* \bar B - B {\bar B}^*$ and $B^* {\bar B}^*$. We
find that the state ... | 1105.4473v2 |
2015-04-15 | Resonant scattering by magnetic impurities as a model for spin relaxation in bilayer graphene | We propose that the observed spin-relaxation in bilayer graphene is due to
resonant scattering by magnetic impurities. We analyze a resonant scattering
model due to adatoms on both dimer and non-dimer sites, finding that only the
former give narrow resonances at the charge neutrality point. Opposite to
single-layer gra... | 1504.03898v2 |
2020-04-07 | Horizontal Line Nodes in Sr2RuO4 Proved by Spin Resonance | We investigated the low-energy incommensurate (IC) magnetic fluctuations in
Sr$_2$RuO$_4$ by the high-resolution inelastic neutron scattering measurements
and random phase approximation (RPA) calculations. We observed a spin resonance
with energy of $\hbar\omega_\text{res}=0.56$~meV centered at a characteristic
wavevec... | 2004.03591v1 |
2019-03-10 | Coherent long-distance spin-qubit-transmon coupling | Spin qubits and superconducting qubits are among the promising candidates for
a solid state quantum computer. For the implementation of a hybrid architecture
which can profit from the advantages of either world, a coherent long-distance
link is necessary that integrates and couples both qubit types on the same
chip. We... | 1903.04022v1 |
2019-04-17 | A cotunneling mechanism for all-electrical Electron Spin Resonance of single adsorbed atoms | The recent development of all-electrical electron spin resonance (ESR) in a
scanning tunneling microscope (STM) setup has opened the door to vast
applications. Despite the fast growing number of experimental works on STM-ESR,
the fundamental principles remains unclear. By using a cotunneling picture, we
show that the s... | 1904.08183v1 |
2020-06-14 | Resonant-amplified and invisible Bragg scattering based on spin coalescing modes | Unlike a real magnetic field, which separates the energy levels of particle
with opposite spin polarization, a complex field can lead to a special kind of
spectral degeneracy, known as exceptional point (EP), at which two spin
eigenmodes coalesce. It allows an EP impurity to be an invisible scattering
center for a ferm... | 2006.07875v2 |
2023-11-07 | Latched Detection of Zeptojoule Spin Echoes with a Kinetic Inductance Parametric Oscillator | When strongly pumped at twice their resonant frequency, non-linear resonators
develop a high-amplitude intracavity field, a phenomenon known as parametric
self-oscillations. The boundary over which this instability occurs can be
extremely sharp and thereby presents an opportunity for realizing a detector.
Here we opera... | 2311.03702v1 |
2011-02-14 | Resonant enhancement of ultracold photoassociation rate by electric field induced anisotropic interaction | We study the effects of a static electric field on the photoassociation of a
heteronuclear atom-pair into a polar molecule. The interaction of permanent
dipole moment with a static electric field largely affects the ground state
continuum wave function of the atom-pair at short separations where
photoassociation transi... | 1102.2687v2 |
2014-05-11 | A mathematical theory of super-resolution by using a system of sub-wavelength Helmholtz resonators | A rigorous mathematical theory is developed to explain the super-resolution
phenomenon observed in the experiment by F.Lemoult, M.Fink and G.Lerosey
(Acoustic resonators for far-field control of sound on a subwavelength scale,
Phys. Rev. Lett., 107 (2011)). A key ingredient is the calculation of the
resonances and the ... | 1405.2513v1 |
2015-09-18 | Resonant and Non-Local Properties of Phononic Metasolids | We derive a general theory of effective properties in metasolids based on
phononic crystals with low frequency resonances. We demonstrate that in general
these structures need to be described by means of a frequency-dependent and
non-local anisotropic mass density, stiffness tensor and a third- rank coupling
tensor, wh... | 1509.05522v1 |
2018-01-09 | Three-neutron resonance study using transition operators | Existing bound-state type calculations of three-neutron resonances yield
contradicting results. A direct study of the three-neutron continuum using
rigorous scattering equations with realistic potentials and search for possible
resonances is aimed. Faddeev-type integral equations for three-neutron
transition operators ... | 1801.02919v2 |
2018-08-30 | Tuning of envelope in high overtone bulk acoustic wave resonator | This report presents a robust composite resonator known as the high overtone
bulk acoustic wave resonator (HBAR) for demonstrating experimentally the
ability of the resonator to tune the envelope of the spectrum by applying dc
bias. The reported HBAR exhibits exceptionally high-quality factor in the
frequency range of ... | 1808.10115v1 |
2020-07-29 | Resonant bending of silicon nanowires by light | Coupling of two dielectric wires with rectangular cross-section gives rise to
bonding and anti-bonding resonances. The latter is featured by extremal
narrowing of the resonant width for variation of the aspect ratio of the
cross-section and distance between wires when the morphology of the
anti-bonding resonant mode ap... | 2007.15434v1 |
2021-05-10 | Resonant interaction in chiral, Eshelby-twisted van der Waals atomic layers | We study the electronic structures of chiral, Eshelby-twisted van der Waals
atomic layers with a particular focus on a chiral twisted graphite (CTG), a
graphene stack with a constant twist angle $\theta$ between successive layers.
We show that each CTG can host infinitely many resonant states which arise from
the inter... | 2105.04139v2 |
2022-02-07 | Broadband Resonance-Enhanced Frequency Generation by Four-Wave Mixing in a Silicon Floquet Topological Photonic Insulator | Floquet topological photonic insulators, whose light transport properties are
dictated by the periodic drive sequence of the lattice, provide more
flexibility for controlling and trapping light than undriven topological
insulators, which can enable novel nonlinear optics applications in topological
photonics. Here, we ... | 2202.03552v1 |
2022-10-17 | Transduction of single nanomechanical pillar resonators by scattering of surface acoustic waves | One of the challenges of nanoelectromechanical systems (NEMS) is the
effective transduction of the tiny resonators. Vertical structures, such as
nanomechanical pillar resonators, which are exploited in a wide range of
fields, such as optomechanics, acoustic metamaterials, and nanomechanical
sensing, are particularly ch... | 2210.09069v2 |
2023-11-09 | Magnon-phonon coupling of synthetic antiferromagnets in a surface acoustic wave cavity resonator | We use a surface acoustic wave (SAW) cavity resonator to study the coupling
of acoustic magnons in a synthetic antiferromagnet (SAF) and the phonons
carried by SAWs. The SAF is composed of a CoFeB/Ru/CoFeB trilayer and the
scattering matrix of the SAW resonator is studied to assess the coupling. We
find that the spectr... | 2311.05275v1 |
2004-08-10 | Coherent optical control of spin-spin interaction in doped semiconductors | We provide a theory of laser-induced interaction between spins localized by
impurity centers in a semiconductor host. By solving exactly the problem of two
localized spins interacting with one itinerant exciton, an analytical
expression for the induced spin-spin interaction is given as a function of the
spin separation... | 0408216v1 |
2007-07-31 | Theory of spin qubits in nanostructures | We review recent advances on the theory of spin qubits in nanostructures. We
focus on four selected topics. First, we show how to form spin qubits in the
new and promising material graphene. Afterwards, we discuss spin relaxation and
decoherence in quantum dots. In particular, we demonstrate how charge
fluctations in t... | 0707.4622v1 |
2009-09-21 | Engineering ultralong spin coherence in two-dimensional hole systems at low temperatures | For the realisation of scalable solid-state quantum-bit systems, spins in
semiconductor quantum dots are promising candidates. A key requirement for
quantum logic operations is a sufficiently long coherence time of the spin
system. Recently, hole spins in III-V-based quantum dots were discussed as
alternatives to elect... | 0909.3711v3 |
2011-07-21 | Theory of a.c. spin current noise and spin conductance through a quantum dot in the Kondo regime I: The equilibrium case | We analyze the equilibrium frequency-dependent spin current noise and spin
conductance through a quantum dot in the local moment regime. Spin current
correlations behave markedly differently from charge correlations. Equilibrium
spin correlations are characterized by two universal scaling functions in the
absence of an... | 1107.4265v1 |
2015-03-13 | Comparison of spin-orbit torques and spin pumping across NiFe/Pt and NiFe/Cu/Pt interfaces | We experimentally investigate spin-orbit torques and spin pumping in NiFe/Pt
bilayers with direct and interrupted interfaces. The damping-like and
field-like torques are simultaneously measured with spin-torque ferromagnetic
resonance tuned by a dc bias current, whereas spin pumping is measured
electrically through the... | 1503.04104v3 |
2016-09-12 | Spin decoherence of magnetic atoms on surfaces | We review the problem of spin decoherence of magnetic atoms deposited on a
surface. Recent breakthroughs in scanning tunnelling microscopy (STM) make it
possible to probe the spin dynamics of individual atoms, either isolated or
integrated in nanoengineered spin structures. Transport pump and probe
techniques with spin... | 1609.03389v2 |
2018-07-11 | Enhanced quantum coherence in exchange coupled spins via singlet-triplet transitions | Manipulation of spin states at the single-atom scale underlies spin-based
quantum information processing and spintronic devices. Such applications
require protection of the spin states against quantum decoherence due to
interactions with the environment. While a single spin is easily disrupted, a
coupled-spin system ca... | 1807.04322v1 |
2019-05-02 | Long-Range Microwave Mediated Interactions Between Electron Spins | Entangling gates for electron spins in semiconductor quantum dots are
generally based on exchange, a short-ranged interaction that requires
wavefunction overlap. Coherent spin-photon coupling raises the prospect of
using photons as long-distance interconnects for spin qubits. Realizing a key
milestone for spin-based qu... | 1905.00776v1 |
2016-11-23 | Room temperature manipulation of long lifetime spins in metallic-like carbon nanospheres | The time-window for processing electron spin information (spintronics) in
solid-state quantum electronic devices is determined by the spin-lattice (T1)
and spin-spin (T2) relaxation times of electrons. Minimising the effects of
spin-orbit coupling and the local magnetic contributions of neighbouring atoms
on T1 and T2 ... | 1611.07690v1 |
2020-06-02 | Spin pumping and inverse spin Hall effect in iridium oxide | Large charge-to-spin conversion (spin Hall angle) and spin Hall conductivity
are prerequisites for development of next generation power efficient spintronic
devices. In this context, heavy metals (e.g. Pt, W etc.), topological
insulators, antiferromagnets are usually considered because they exhibit high
spin-orbit coup... | 2006.01865v2 |
2024-02-16 | Fractional Spin Quantum Hall Effect in Weakly Coupled Spin Chain Arrays | Topological magnetic insulators host chiral gapless edge modes. In the
presence of strong interaction effects, the spin of these modes may
fractionalize. Studying a 2D array of coupled insulating spin-1/2 chains, we
show how spatially modulated magnetic fields and Dzyaloshinskii-Moriya
interactions can be exploited to ... | 2402.10849v1 |
2000-12-18 | New Origin For Spin Current And Current-Induced Spin Precession In Magnetic Multilayers | In metallic ferromagnets, an electric current is accompanied by a flux of
angula r momentum, also called spin current. In multilayers, spatial variations
of the spin current correspond to drive torques exerted on a magnetic layer.
These torq ues result in spin precession above a certain current threshold. The
usual kin... | 0012337v2 |
2003-10-15 | Central limit theorems for the large-spin asymptotics of quantum spins | We use a generalized form of Dyson's spin wave formalism to prove several
central limit theorems for the large-spin asymptotics of quantum spins in a
coherent state. | 0310027v1 |
2019-02-07 | Polarization spin-tensors in two-spinor formalism and Behrends-Fronsdal spin projection operator for $D$-dimensional case | In the work, the recurrent differential relations that connecting the
polarization spin-tensor of the wave function of a free massive particle of an
arbitrary spin for $D=4$ and new formula of the $D$-dimensional
Behrends-Fronsdal spin projection operator are found. | 1902.02570v1 |
2010-02-16 | Electron-doping evolution of the low-energy spin excitations in the iron arsenide BaFe$_{2-x}$Ni$_{x}$As$_{2}$ superconductors | We use elastic and inelastic neutron scattering to systematically investigate
the evolution of the low-energy spin excitations of the iron arsenide
superconductor BaFe2-xNixAs2 as a function of nickel doping x. In the undoped
state, BaFe2As2 exhibits a tetragonal-to-orthorhombic structural phase
transition and simultan... | 1002.3133v2 |
2013-01-14 | Spin-flip Raman scattering of the neutral and charged excitons confined in a CdTe/(Cd,Mg)Te quantum well | Spin-flip Raman scattering of electrons and heavy-holes is studied for
resonant excitation of neutral and charged excitons in a
CdTe/Cd$_{0.63}$Mg$_{0.37}$Te quantum well. The spin-flip scattering is
characterized by its dependence on the incident and scattered light
polarization as well as on the magnetic field streng... | 1301.3108v2 |
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