publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
|---|---|---|---|
2015-02-11 | Quantum spin Hall effect of light | Maxwell's equations, formulated 150 years ago, ultimately describe properties
of light, from classical electromagnetism to quantum and relativistic aspects.
The latter ones result in remarkable geometric and topological phenomena
related to the spin-1 massless nature of photons. By analyzing fundamental spin
properties... | 1502.03319v3 |
2015-10-21 | Reconfigurable spin wave band structure of artificial square spin ice | Artificial square spin ices are structures composed of magnetic elements
arranged on a geometrically frustrated lattice and located on the sites of a
two-dimensional square lattice, such that there are four interacting magnetic
elements at each vertex. Using a semi-analytical approach, we show that square
spin ices exh... | 1510.06385v2 |
2016-04-18 | Spin-transfer torques in antiferromagnets: efficiency and quantification method | We formulate a theory of spin-transfer torques in antiferromagnets, which
covers the small to large limits of the exchange coupling energy relative to
the kinetic energy of the inter-sublattice electron dynamics. Our theory
suggests a natural definition of the efficiency of spin-transfer torques in
antiferromagnets in ... | 1604.05277v2 |
2017-12-22 | Gravitational waves from spinning binary black holes at the leading post-Newtonian orders at all orders in spin | We determine the binding energy, the total gravitational wave energy flux,
and the gravitational wave modes for a binary of rapidly spinning black holes,
working in linearized gravity and at leading orders in the orbital velocity,
but to all orders in the black holes' spins. Though the spins are treated
nonperturbative... | 1712.08603v2 |
2017-02-03 | Research Note: The Expected Spins of Gravitational Wave Sources With Isolated Field Binary Progenitors | We explore the consequences of dynamical evolution of field binaries composed
of a primary black hole (BH) and a Wolf-Rayet (WR) star in the context of
gravitational wave (GW) source progenitors. We argue, from general
considerations, that the spin of the WR-descendent BH will be maximal in a
significant number of case... | 1702.00885v1 |
2020-06-15 | Magnetic Droplet Solitons | Magnetic droplet solitons are dynamical magnetic textures that form due to an
attractive interaction between spin waves in thin films with perpendicular
magnetic anisotropy. Spin currents and the spin torques associated with these
currents enable their formation as they provide a means to excite
non-equilibrium spin wa... | 2006.08808v2 |
2022-03-10 | Mass$\unicode{x2013}$spin Re-Parameterization for Rapid Parameter Estimation of Inspiral Gravitational-Wave Signals | Estimating the source parameters of gravitational waves from compact binary
coalescence(CBC) is a key analysis task in gravitational-wave astronomy. To
deal with the increasing detection rate of CBC signals, optimizing the
parameter estimation analysis is crucial. The analysis typically employs a
stochastic sampling te... | 2203.05216v1 |
2014-11-06 | Ising-nematic order in the bilinear-biquadratic model for the iron pnictides | Motivated by the recent inelastic neutron scattering (INS) measurements in
the iron pnictides which show a strong anisotropy of spin excitations in
directions perpendicular and parallel to the ordering wave-vector even above
the magnetic transition temperature $T_N$, we study the frustrated Heisenberg
model with a biqu... | 1411.1462v2 |
2015-08-30 | Spin-transfer torque based damping control of parametrically excited spin waves in a magnetic insulator | The damping of spin waves parametrically excited in the magnetic insulator
Yttrium Iron Garnet (YIG) is controlled by a dc current passed through an
adjacent normal-metal film. The experiment is performed on a macroscopically
sized YIG(100nm)/Pt(10nm) bilayer of 4x2 mm^2 lateral dimensions. The spin-wave
relaxation fre... | 1508.07517v1 |
2017-12-03 | Stochastic gravitational-wave background from spin loss of black holes | Although spinning black holes are shown to be stable in vacuum in general
relativity, there exists exotic mechanisms that can convert the spin energy of
black holes into gravitational waves. Such waves may be very weak in amplitude,
since the spin-down could take a long time, and a direct search may not be
feasible. We... | 1712.00784v3 |
2021-07-19 | Reconfigurable Training and Reservoir Computing in an Artificial Spin-Vortex Ice via Spin-Wave Fingerprinting | Strongly-interacting artificial spin systems are moving beyond mimicking
naturally-occurring materials to emerge as versatile functional platforms, from
reconfigurable magnonics to neuromorphic computing. Typically artificial spin
systems comprise nanomagnets with a single magnetisation texture: collinear
macrospins or... | 2107.08941v3 |
2022-12-16 | Spin excitations in the kagome-lattice metallic antiferromagnet Fe$_{0.89}$Co$_{0.11}$Sn | Kagome-lattice materials have attracted tremendous interest due to the broad
prospect for seeking superconductivity, quantum spin liquid states, and
topological electronic structures. Among them, the transition-metal kagome
lattices are high-profile objects for the combination of topological
properties, rich magnetism,... | 2212.08590v2 |
2005-03-17 | Transverse Spin-Orbit Force in the Spin Hall Effect in Ballistic Semiconductor Wires | We introduce the spin and momentum dependent {\em force operator} which is
defined by the Hamiltonian of a {\em clean} semiconductor quantum wire with
homogeneous Rashba spin-orbit (SO) coupling attached to two ideal (i.e., free
of spin and charge interactions) leads. Its expectation value in the
spin-polarized electro... | 0503415v2 |
2020-11-17 | Observational Constraints on Black Hole Spin | The spin of a black hole is an important quantity to study, providing a
window into the processes by which a black hole was born and grew. Further,
spin can be a potent energy source for powering relativistic jets and energetic
particle acceleration. In this review, I describe the techniques currently used
to detect an... | 2011.08948v1 |
2020-07-17 | A new spin on LIGO-Virgo binary black holes | Gravitational waves from binary black holes have the potential to yield
information on both of the intrinsic parameters that characterize the compact
objects: their masses and spins. While the component masses are usually
resolvable, the component spins have proven difficult to measure. This
limitation stems in great p... | 2007.09156v2 |
2014-01-08 | Dynamic exchange via spin currents in acoustic and optical modes of ferromagnetic resonance in spin-valve structures | Two ferromagnetic layers magnetically decoupled by a thick normal metal
spacer layer can be, nevertheless, dynamically coupled via spin currents
emitted by the spin-pump and absorbed through the spin-torque effects at the
neighboring interfaces. A decrease of damping in both layers due to a partial
compensation of the ... | 1401.1672v1 |
2022-11-11 | Short wavelength electrostatic wave measurement using MMS spacecraft | Determination of the wave mode of short-wavelength electrostatic waves along
with their generation mechanism requires reliable measurement of the wave
electric field. We investigate the reliability of the electric field
measurement for short-wavelength waves observed by MMS. We develop a method,
based on spin-plane int... | 2211.06221v1 |
2008-12-23 | Black Holes Admitting Strong Resonant Phenomena | High-frequency twin peak quasiperiodic oscillations (QPOs) are observed in
four microquasars, i.e., Galactic black hole binary systems, with frequency
ratio very close to 3:2. In the microquasar GRS 1915+105, the structure of QPOs
exhibits additional frequencies, and more than two frequencies are observed in
the Galaxy... | 0812.4418v1 |
2023-03-30 | A search technique to observe precessing compact binary mergers in the advanced detector era | Gravitational-wave signals from compact binary coalescences are most
efficiently identified through matched filter searches, which match the data
against a pre-generated bank of gravitational-wave templates. Although
different techniques for performing the matched filter, as well as generating
the template bank, exist,... | 2303.17364v1 |
1995-08-25 | Simple theory for spin-lattice relaxation in metallic rare earth ferromagnets | The spin-lattice relaxation time $\tau_{SL}$ is a key quantity both for the
dynamical response of ferromagnets excited by laser pulses and as the speed
limit of magneto-optical recording. Extending the theory for the electron
paramagnetic resonance of magnetic impurities to spin-lattice relaxation in
ferromagnetic rare... | 9508120v1 |
1997-01-28 | Variational states for the spin-Peierls system | We introduce a family of Jastrow pair product states for quasi
one-dimensional spin systems. Depending on a parameter they interpolate between
the resonating valence bond ground state of the Haldane-Shastry model
describing a spin liquid and the (dimerized) valence bond solid ground states
of the Majumdar-Ghosh spin ch... | 9701200v2 |
1999-01-22 | Superconducting Fluctuation Effects on the Spin-Lattice Relaxation Rate in YBa_2Cu_3O_{6.95} | We report 63Cu(2) spin-lattice relaxation rate measurements of
YBa_2Cu_3O_{6.95} in magnetic fields from 2.1 T to 27.3 T obtained from
17O(2,3) nuclear magnetic resonance spin-spin relaxation. For T < 120 K, the
spin-lattice rate increases with increasing magnetic field. We identify this
magnetic field dependence with ... | 9901230v1 |
1999-02-09 | Spin liquid ground state in a two dimensional non-frustrated spin model | We consider an exchange model describing two isotropic spin-1/2 Heisenberg
antiferromagnets coupled by a quartic term on the square lattice. The model is
relevant for systems with orbital degeneracy and strong electron-vibron
coupling in the large Hubbard repulsion limit, and is known to show a
spin-Peierls-like dimeri... | 9902116v1 |
1999-10-11 | Anomalous spin susceptibility and magnetic polaron formation in the double exchange systems | The magnetic susceptibility and spin-spin correlation of the double-exchange
model for doped manganites are investigated through the Monte Carlo
calculations on the three-dimensional lattice model. Deviations of the
susceptibility from the Curie-Weiss behavior above the ferromagnetic ordering
temperature $T_c$ seem to ... | 9910153v1 |
2001-04-04 | Bound spin-excitons in two-dimensional electron gas | A theory of the spin exciton capture by a magnetic impurity in a 2D electron
gas is developed. We consider the resonance model for electron scattering by a
transition metal impurity and calculate the binding potential for spin
excitons. This potential is spin selective and is capable of binding a spin
exciton with zero... | 0104074v1 |
2001-06-08 | Polarization of the helf-filled Landau level in quantum Hall effect | We develop a theory of the half-filled Landau level which shows that it is a
two-component fluid. One of the components has spin up and the other spin down
so that the electron-spin resonance can occur. The 1/3 filled level is fully
spin polarized one-component fluid. We calculate the spin polarization at the
half-fill... | 0106160v1 |
2002-04-16 | Spin accumulation in ferromagnetic single-electron transistors in the cotunneling regime | We propose a new method of direct detection of spin accumulation, which
overcomes problems of previous measurement schemes. A spin dependent current in
a single-electron transistor with ferromagnetic electrodes leads to spin
accumulation on the metallic island. The resulting spin-splitting of the
electrochemical potent... | 0204354v1 |
2003-02-18 | Flow equation renormalization of a spin-boson model with a structured bath | We discuss the dynamics of a spin coupled to a damped harmonic oscillator.
This system can be mapped to a spin-boson model with a structured bath, i.e.
the spectral function of the bath has a resonance peak. We diagonalize the
model by means of infinitesimal unitary transformations (flow equations),
thereby decoupling ... | 0302357v1 |
2003-04-04 | Dynamic exchange coupling and Gilbert damping in magnetic multilayers | We theoretically study dynamic properties of thin ferromagnetic films in
contact with normal metals. Moving magnetizations cause a flow of spins into
adjacent conductors, which relax by spin flip, scatter back into the
ferromagnet, or are absorbed by another ferromagnet. Relaxation of spins
outside the moving magnetiza... | 0304116v1 |
2003-05-20 | Spin-dependent Rabi oscillations in single quantum=0D dot | Ultrafast optical pump of exciton resonance in single quantum dot by an
elliptically polarized laser pulse is described by the non-Markov balance
equations. Population and spin dynamics are investigated and spin-dependent
Rabi oscillations are considered for the case of a flat quantum dot, with the
lateral size greater... | 0305473v1 |
2004-07-15 | Optically induced spin polarization of an electric current through a quantum dot | We examine electron transport through semiconductor quantum dot subject to a
continuous circularly polarized optical irradiation resonant to the electron -
heavy hole transition. Electrons having certain spin polarization experience
Rabi oscillation and their energy levels are shifted by the Rabi frequency.
Correspondi... | 0407376v2 |
2005-05-09 | Fast exciton spin relaxation in single quantum dots | Exciton spin relaxation is investigated in single epitaxially grown
semiconductor quantum dots in order to test the expected spin relaxation
quenching in this system. We study the polarization anisotropy of the
photoluminescence signal emitted by isolated quantum dots under steady-state or
pulsed non-resonant excitatio... | 0505210v1 |
2005-06-14 | Spin superradiance versus atomic superradiance | A comparative analysis is given of spin superradiance and atomic
superradiance. Their similarities and distinctions are emphasized. It is shown
that, despite a close analogy, these phenomena are fundamentally different. In
atomic systems, superradiance is a self-organized process, in which both the
initial cause, being... | 0506322v1 |
2007-03-30 | Spin-polarized tunneling microscopy and the Kondo effect | We present a theory for spin-polarized scanning tunneling microscopy (SP-STM)
of a Kondo impurity on an unpolarized metallic substrate. The spin polarization
of the SP-STM breaks the spin symmetry of the Kondo system, similar to an
applied magnetic field, leading to a splitting of the Abrikosov-Suhl-Kondo
resonance. Th... | 0703813v1 |
1998-05-11 | The $π-$Gluon Exchange Interaction Between Constituent Quarks | The interaction mediated by irreducible pion and gluon exchange between
constituent quarks is calculated and shown to have a strong tensor component,
which tends to cancel the pion exchange tensor interaction between quarks. Its
spin-spin component is somewhat weaker than the pion exchange spin-spin
interaction, while ... | 9805280v1 |
2000-03-21 | Ortho-Para Conversion in CH3F. Self-Consistent Theoretical Model | A complete theoretical model of the nuclear spin conversion in 13CH3F induced
by intramolecular ortho-para state mixing is proposed. The model contains
parameters determined from the level-crossing spectra of the 13CH3F spin
conversion. This set of parameters includes the ortho-para decoherence rate,
the magnitude of t... | 0003046v1 |
2001-06-17 | Sub-Riemannian Geometry and Time Optimal Control of Three Spin Systems: Quantum Gates and Coherence Transfer | Many coherence transfer experiments in Nuclear Magnetic Resonance
Spectroscopy, involving network of coupled spins, use temporary spin-decoupling
to produce desired effective Hamiltonians. In this paper, we show that
significant time can be saved in producing an effective Hamiltonian, if
spin-decoupling is avoided. We ... | 0106099v1 |
2001-11-29 | Conditional Spin Resonance with Trapped Ions | Internal states of different ions in an electrodynamic trap are coupled when
a static magnetic field is applied -- analogous to spin-spin coupling in
molecules used for NMR. This spin-spin interaction can be used, for example, to
implement quantum logic operations in ion traps using NMR methods. The
collection of trapp... | 0111158v1 |
2003-03-28 | Spin Relaxation Caused by Thermal Excitations of High Frequency Modes of Cantilever Vibrations | We consider the process of spin relaxation in the oscillating
cantilever-driven adiabatic reversals technique in magnetic resonance force
microscopy. We simulated the spin relaxation caused by thermal excitations of
the high frequency cantilever modes in the region of the Rabi frequency of the
spin sub-system. The mini... | 0303171v1 |
2004-10-18 | Spin Squeezing via One-Axis Twisting with Coherent Light | We propose a new method of spin squeezing of atomic spin, based on the
interactions between atoms and off-resonant light which are known as
paramagnetic Faraday rotation and fictitious magnetic field of light. Since the
projection process, squeezed light, or special interactions among the atoms are
not required in this... | 0410132v1 |
2005-12-07 | Paramagnetic Faraday rotation with spin-polarized ytterbium atoms | We report observation of the paramagnetic Faraday rotation of spin-polarized
ytterbium (Yb) atoms. As the atomic samples, we used an atomic beam, released
atoms from a magneto-optical trap (MOT), and trapped atoms in a
far-off-resonant trap (FORT). Since Yb is diamagnetic and includes a spin-1/2
isotope, it is an ideal... | 0512056v2 |
2007-04-10 | Spin-dependence of Ce $4f$ hybridization in magnetically ordered systems: A spin-resolved photoemission study of Ce/Fe(110) | Spin- and angle-resolved resonant (Ce $4d\to4f$) photoemission spectra of a
monolayer Ce on Fe(110) reveal spin-dependent changes of the Fermi-level peak
intensities. That indicate a spin-dependence of $4f$ hybridization and, thus,
of $4f$ occupancy and local moment. The phenomenon is described in the
framework of the ... | 0704.1254v1 |
2008-11-13 | Optical spin orientation of a single manganese atom in a quantum dot | A hight degree of spin polarization is achieved for a Mn atom localized in a
semiconductor quantum dot using quasi-resonant optical excitation at zero
magnetic field. Optically created spin polarized carriers generate an energy
splitting of the Mn spin and enable magnetic moment orientation controlled by
the photon hel... | 0811.2165v1 |
2009-06-23 | Multiferroic oxides-based flash-memory and spin-field-effect transistor | We propose a modified spin-field-effect transistor fabricated in a two
dimensional electron gas (2DEG) formed at the surface of multiferroic oxides
with a transverse helical magnetic order. The topology of the oxide local
magnetic moments induces a resonant momentum-dependent effective spin-orbit
interaction acting on ... | 0906.4210v1 |
2009-09-13 | Manipulation of Non-classical Atomic Spin States | We report successful manipulation of non-classical atomic spin states. We
generate squeezed spin states by a spin quantum nondemolition measurement, and
apply an off-resonant circularly-polarized light pulse to the atoms. By
changing the pulse duration, we have clearly observed a rotation of anisotropic
quantum noise d... | 0909.2423v1 |
2010-11-11 | Proposal for a Topological Plasmon Spin Rectifier | We propose a device in which the spin-polarized AC plasmon mode in the
surface state of a topological insulator nanostructure induces a static spin
accumulation in a resonant, normal metal structure coupled to it. Using a
finite-difference time-domain model, we simulate this spin-pump mechanism with
drift, diffusion, r... | 1011.2697v2 |
2010-12-04 | The Beauty of Spin | I review recent developments in theoretical spin physics. Topics include pion
production in nucleon-nucleon collisions, the implications of heavy quark spin
symmetry for heavy hadron molecules, the nucleon electric dipole form factors
and ab initio calculations of the width of hadron resonances. A few spin
physics high... | 1012.0924v1 |
2011-01-12 | The Spin-Exchange Dynamical Structure Factor of the S=1/2 Heisenberg Chain | We determine the spin-exchange dynamical structure factor of the Heisenberg
spin chain, as is measured by indirect Resonant Inelastic X-ray Scattering
(RIXS). We find that two-spin RIXS excitations nearly entirely fractionalize
into *two spinon* states. These share the same continuum lower bound as
single-spin neutron ... | 1101.2356v1 |
2011-01-25 | Inelastic electron tunneling spectroscopy of a single nuclear spin | Detection of a single nuclear spin constitutes an outstanding problem in
different fields of physics such as quantum computing or magnetic imaging. Here
we show that the energy levels of a single nuclear spin can be measured by
means of inelastic electron tunneling spectroscopy (IETS).
We consider two different syste... | 1101.4772v1 |
2011-06-28 | Phase separation in a polarized Fermi gas with spin-orbit coupling | We study the phase separation of a spin polarized Fermi gas with spin-orbit
coupling near a wide Feshbach resonance. As a result of the competition between
spin-orbit coupling and population imbalance, the phase diagram for a uniform
gas develops a rich structure of phase separation involving gapless superfluid
states ... | 1106.5667v2 |
2011-08-02 | Quantum read-out and fast initialization of nuclear spin qubits with electric currents | Nuclear spin qubits have the longest coherence times in the solid state, but
their quantum read-out and initialization is a great challenge. We present a
theory for the interaction of an electric current with the nuclear spins of
donor impurities in semiconductors. The theory yields a sensitivity criterion
for quantum ... | 1108.0699v3 |
2011-11-06 | Estimation of Coupling Constants of a Three-Spin Chain: Case Study of Hamiltonian Tomography with NMR | It has been shown that inter-spin interaction strengths in a spins-1/2 chain
can be evaluated by accessing one of the edge spins only. We demonstrate this
experimentally for the simplest case, a three-spin chain, with nuclear magnetic
resonance (NMR) technique. The three spins in the chain interact through
nearest-neig... | 1111.1381v1 |
2011-12-05 | Optomechanically-Based Probing of Spin-Charge Separation in Ultracold Gases | We propose a new approach to investigate the spin-charge separation in 1D
quantum liquids via the optomechanical coupled atom-cavity system. We show
that, one can realize an effective two-modes optomechanical model with the
spin/charge modes playing the role of mechanical resonators. By tuning the weak
probe laser unde... | 1112.0843v1 |
2012-10-30 | NMR relaxation in spin ice due to diffusing emergent monopoles | At low temperatures, spin dynamics in ideal spin ice is due mainly to dilute,
thermally excited magnetic monopole excitations. I consider how these will
affect the dynamics of a nuclear spin (the same theory applies to muon spin
resonance if implanted muons do not diffuse). Up to the time scale for nearby
monopoles to ... | 1210.8137v1 |
2012-11-01 | Renormalization of spin-rotation coupling | We predict the enhancement of the spin-rotation coupling due to the interband
mixing. The Bloch wavefunctions in the presence of mechanical rotation are
constructed with the generalized crystal momentum which includes a gauge
potential arising from the rotation. Using the eight- band Kane model, the
renormalized spin-r... | 1211.0127v2 |
2013-01-29 | Model of coherent optical spin manipulation through hot trion states in p-doped InAs/GaAs quantum dots | A new generalised group-theoretical approach, based on master
Maxwell-pseudospin equations, is proposed to explain recently observed enhanced
circular dichroism in the excited state emission from p-doped quantum dot
ensembles under resonant circularly polarised excitation into hot trion states,
herein referred to as "s... | 1301.7018v1 |
2013-02-26 | Spin noise of exciton-polaritons in microcavities | We develop a theory of spin fluctuations of exciton-polaritons in a
semiconductor microcavity under the non-resonant unpolarized pumping. It is
shown that the corresponding spin noise is sensitive to the scattering rates in
the system, occupation of the ground state, statistics of polaritons, and
interactions. The spin... | 1302.6439v2 |
2013-03-05 | Resolving an Individual One-Proton Spin Flip to Determine a Proton Spin State | Previous measurements with a single trapped proton or antiproton detected
spin resonance from the increased scatter of frequency measurements caused by
many spin flips. Here a measured correlation confirms that individual spin
transitions and states are detected instead. The high fidelity suggests that it
may be possib... | 1303.0924v2 |
2013-05-10 | Noise and fluctuation relations of a spin diode | We consider fluctuation relations between the transport coefficients of a
spintronic system where magnetic interactions play a crucial role. We
investigate a prototypical spintronic device (a spin-diode) which consists of
an interacting resonant level coupled to two ferromagnetic electrodes. We
thereby obtain the cumul... | 1305.2346v1 |
2013-08-25 | Entanglement of spin-orbit qubits induced by Coulomb interaction | Spin-orbit qubit (SOQ) is the dressed spin by the orbital degree of freedom
through a strong spin-orbit coupling. We show that Coulomb interaction between
two electrons in quantum dots located separately in two nanowires can
efficiently induce quantum entanglement between two SOQs. The physical
mechanism to achieve suc... | 1308.5387v1 |
2013-12-23 | Colossal Spin Hall Effect in Ultrathin Metallic Films | We predict spin Hall angles up to 80% for ultrathin noble metal films with
substitutional Bi impurities. The colossal spin Hall effect is caused by
enhancement of the spin Hall conductivity in reduced sample dimension and a
strong reduction of the charge conductivity by resonant impurity scattering.
These findings can ... | 1312.6539v1 |
2014-11-20 | Spin transport and polarization properties of manganese-doped dual-guanine molecule | We study the spin transport and polarization properties of manganese-doped
dual-guanine molecules connected to graphene leads using non-equilibrium
Green's function method. It is shown that a manganese doped dual-guanine
molecule is a biological semiconductor and behaves as a prefect spin filter. We
show that this semi... | 1411.5448v1 |
2015-02-03 | Generation of Spin Currents in the Skyrmion Phase of a Helimagnetic Insulator $\mathrm{Cu_2OSeO_3}$ | We report spin-current generation related with skyrmion dynamics resonantly
excited by a microwave in a helimagnetic insulator $\mathrm{Cu_2OSeO_3}$. A Pt
layer was fabricated on $\mathrm{Cu_2OSeO_3}$ and voltage in the Pt layer was
measured upon magnetic resonance of $\mathrm{Cu_2OSeO_3}$ to electrically
detect inject... | 1502.00742v1 |
2015-02-19 | Enhanced photogalvanic effect in graphene due to Rashba spin-orbit coupling | We analyze theoretically optical generation of a spin-polarized charge
current (photogalvanic effect) and spin polarization in graphene with Rashba
spin-orbit coupling. An external magnetic field is applied in the graphene
plane, which plays a crucial role in the mechanism of current generation. We
predict a highly eff... | 1502.05683v1 |
2015-09-07 | Time-optimal polarization transfer from an electron spin to a nuclear spin | Polarization transfers from an electron spin to a nuclear spin are essential
for various physical tasks, such as dynamic nuclear polarization in nuclear
magnetic resonance and quantum state transformations on hybrid electron-nuclear
spin systems. We present time-optimal schemes for electron-nuclear polarization
transfe... | 1509.02072v1 |
2016-05-21 | Electrically tunable quantum interfaces between photons and spin qubits in carbon nanotube quantum dots | We present a new scheme for quantum interfaces to accomplish the
interconversion of photonic qubits and spin qubits based on optomechanical
resonators and the spin-orbit-induced interactions in suspended carbon nanotube
quantum dots. This interface implements quantum spin transducers and further
enables electrical mani... | 1605.06649v1 |
2016-06-09 | Experimental Verification of a Spin-Interference Device Action | We report the detection of spin interference signal in an Aharonov-Bohm type
interferometer with quantum dots on the conduction paths. We have found that
resonators like quantum dots can work as efficient spin rotators. The
interference signal appears only when spin-polarized electrons are injected
into the device. The... | 1606.02876v2 |
2018-10-07 | Tri-spin dynamics in alkali metal-noble gas NMR gyroscope | Alkali metal-noble gas NMR gyroscope is widely used for precision rotation
measurement in fundamental and applied physics. By numerically simulating the
alkali-nuclear-nuclear tri-spin dynamics, we investigate the dependence of
gyroscope response on alkali spin relaxation time and nuclear spin
magnetization. We found a... | 1810.03185v4 |
2012-09-12 | New insights into the spin structure of the nucleon | We analyze the low-energy spin structure of the nucleon in a covariant
effective field theory with explicit spin-3/2 degrees of freedom to third order
in the small scale expansion. Using the available data on the strong and
electromagnetic width of the Delta-resonance, we give parameter-free
predictions for various spi... | 1209.2523v1 |
2021-04-27 | Vector resonances spin alignement as a probe of spin hydrodynamics and freeze-out | We argue that a detailed analysis of the spin alignement of vector mesons can
serve as a probe of two little-understood aspects of spin dynamics in the
vortical fluid: The degree of relaxation between vorticity and parton spin
polarization, and the degree of coherence of the hadron wavefunction at
freeze-out.
We illu... | 2104.12941v4 |
2021-05-07 | Proposed rapid detection of nuclear spins with entanglement-enhanced sensors | Recently, there have been significant developments to detect nuclear spins
with an nitrogen vacancy (NV) center in diamond. However, due to the nature of
the short range dipole-dipole interaction, it takes a long time to detect
distant nuclear spins with the NV centers. Here, we propose a rapid detection
of nuclear spi... | 2105.03069v1 |
2022-02-28 | Optical measurement of electron spins in quantum dots: Quantum Zeno effects | We describe the effects of the quantum back action under continuous optical
measurement of electron spins in quantum dots. We consider the system
excitation by elliptically polarized light close to the trion resonance, which
allows for the simultaneous spin orientation and measurement. We
microscopically demonstrate th... | 2202.13994v1 |
2007-12-14 | Quantum Spin Excitations through the metal-to-insulator crossover in $Y Ba_2 Cu_3 O_{6+y}$ | We use inelastic neutron scattering to study the temperature dependence of
the spin excitations of a detwinned superconducting YBa$_2$Cu$_3$O$_{6.45}$
($T_c=48$ K). In contrast to earlier work on YBa$_2$Cu$_3$O$_{6.5}$ ($T_c=58$
K), where the prominent features in the magnetic spectra consist of a sharp
collective magn... | 0712.2465v1 |
2013-01-22 | Validity of single-channel model for a spin-orbit coupled atomic Fermi gas near Feshbach resonances | We theoretically investigate a Rashba spin-orbit coupled Fermi gas near
Feshbach resonances, by using mean-field theory and a two-channel model that
takes into account explicitly Feshbach molecules in the close channel. In the
absence of spin-orbit coupling, when the channel coupling $g$ between the
closed and open cha... | 1301.5071v1 |
2015-03-05 | Monitoring surface resonances on Co2MnSi(100) by spin-resolved photoelectron spectroscopy | The magnitude of the spin polarization at the Fermi level of ferromagnetic
materials at room temperature is a key property for spintronics. Investigating
the Heusler compound Co$_2$MnSi a value of 93$\%$ for the spin polarization has
been observed at room temperature, where the high spin polarization is related
to a st... | 1503.01573v1 |
2017-12-07 | Suppression of electron spin decoherence in Rabi oscillations induced by an inhomogeneous microwave field | The decay of Rabi oscillations provides direct information about coherence of
electron spins. When observed in EPR experiments, it is often shortened by
spatial inhomogeneity of the microwave field amplitude in a bulk sample. In
order to suppress this undesired loss of coherence, we propose an additional
dressing of sp... | 1712.02597v3 |
2021-02-10 | Quantum spin state selectivity and magnetic tuning of ultracold chemical reactions of triplet alkali-metal dimers with alkali-metal atoms | We demonstrate that it is possible to efficiently control ultracold chemical
reactions of alkali-metal atoms colliding with open-shell alkali-metal dimers
in their metastable triplet states by choosing the internal hyperfine and
rovibrational states of the reactants as well as by inducing magnetic Feshbach
resonances w... | 2102.05707v2 |
2022-06-27 | Optical readout of singlet fission biexcitons with photoluminescence detected magnetic resonance | Molecular spin systems based on photoexcited triplet pairs formed via singlet
fission (SF) are attractive as carriers of quantum information because of their
potentially pure and controllable spin polarization, but developing systems
that offer optical routes to readout as well as initialization is challenging.
Herein,... | 2206.13636v1 |
2022-11-22 | Magnetic resonance study of rare-earth titanates | We present a nuclear magnetic resonance (NMR) and electron spin resonance
(ESR) study of rare-earth titanates derived from the spin-1/2 Mott insulator
YTiO$_3$. Measurements of single-crystalline samples of (Y,Ca,La)TiO$_3$ in a
wide range of isovalent substitution (La) and hole doping (Ca) reveal several
unusual featu... | 2211.12387v2 |
2016-11-17 | Dynamic localization in optical and Zeeman lattices in the presence of spin-orbit coupling | The dynamic localization of a two-level atom in a periodic potential under
the action of spin-orbit coupling and a weak harmonically-varying linear force
is studied. We consider optical and Zeeman potentials that are either in-phase
or out-of-phase in two spinor components, respectively. The expectation value
for the p... | 1611.05745v1 |
2004-12-23 | Quasiperiodic spin-orbit motion and spin tunes in storage rings | We present an in-depth analysis of the concept of spin precession frequency
for integrable orbital motion in storage rings. Spin motion on the periodic
closed orbit of a storage ring can be analyzed in terms of the Floquet theorem
for equations of motion with periodic parameters and a spin precession
frequency emerges ... | 0412157v1 |
2006-10-13 | Observation of Faraday rotation from a single confined spin | Ability to read-out the state of a single confined spin lies at the heart of
solid-state quantum information processing. While all-optical spin measurements
using Faraday rotation has been successfully implemented in ensembles of
semiconductor spins, read-out of a single semiconductor spin has only been
achieved using ... | 0610110v1 |
2010-08-12 | Semiconductor Spin Noise Spectroscopy: Fundamentals, Accomplishments, and Challenges | Semiconductor spin noise spectroscopy (SNS) has emerged as a unique
experimental tool that utilizes spin fluctuations to provide profound insight
into undisturbed spin dynamics in doped semiconductors and semiconductor
nanostructures. The technique maps ever present stochastic spin polarization of
free and localized ca... | 1008.2191v2 |
2016-07-13 | Dynamics of Stellar Spin Driven by Planets Undergoing Lidov-Kozai Migration: Paths to Spin-Orbit Misalignment | Many exoplanetary systems containing hot Jupiters (HJs) exhibit significant
misalignment between the spin axes of the host stars and the orbital angular
momentum axes of the planets ("spin-orbit misalignment"). High-eccentricity
migration involving Lidov-Kozai oscillations of the planet's orbit induced by a
distant per... | 1607.03937v1 |
2016-10-30 | Boson-mediated quantum spin simulators in transverse fields: XY model and spin-boson entanglement | The coupling of spins to long-wavelength bosonic modes is a prominent means
to engineer long-range spin-spin interactions, and has been realized in a
variety of platforms, such as atoms in optical cavities and trapped ions. To
date, much of the experimental focus has been on the realization of long-range
Ising models, ... | 1610.09699v1 |
2023-01-16 | Crystal orientation dependent spin pumping in Bi0.1Y2.9Fe5O12/Pt interface | Ferromagnetic resonance (FMR) based spin pumping is a versatile tool to
quantify the spin mixing conductance and spin to charge conversion (S2CC)
efficiency of ferromagnet/normal metal (FM/NM) heterostructure. The spin mixing
conductance of FM/NM interface can also be tuned by the crystal orientation
symmetry of epitax... | 2301.06477v1 |
2003-07-14 | Numerical analysis of solitary waves interaction in nonlinear medium | Using numerical modeling investigated interaction of solitary waves
(solitons) of the regularized long wave equation. For reception the stable
model of the nonlinear medium are used methods of the linear prediction and
progressive approximation. By modeling was determined that depending on ratio
of velocities of the so... | 0307023v1 |
2008-03-05 | The Secular Evolution of a Close Ring-Satellite System: The Excitation of Spiral Density Waves at a Nearby Gap Edge | The Lagrange planetary equations are used to study to secular evolution of a
small, eccentric satellite that orbits within a narrow gap in a broad,
self-gravitating planetary ring. These equations show that the satellite's
secular perturbations of the ring will excite a very long-wavelength spiral
density wave that pro... | 0803.0576v1 |
2011-11-29 | Cross-waves induced by the vertical oscillation of a fully immersed vertical plate | Capillary waves excited by the vertical oscillations of a thin elongated
plate below an air-water interface are analyzed using time-resolved
measurements of the surface topography. A parametric instability is observed
above a well defined acceleration threshold, resulting in a so-called
cross-wave, a staggered wave pat... | 1111.6769v2 |
2013-02-12 | Two new standing solitary waves in shallow water | In this paper, the closed-form analytic solutions of two new Faraday's
standing solitary waves due to the parametric resonance of liquid in a vessel
vibrating vertically with a constant frequency are given for the first time.
Using a model based on the symmetry of wave elevation and the linearized
Boussinesq equation, ... | 1302.2714v1 |
2014-11-26 | Universality of Sea Wave Growth and Its Physical Roots | Modern day studies of wind-driven sea waves are usually focused on wind
forcing rather than on the effect of resonant nonlinear wave interactions. The
authors assume that these effects are dominating and propose a simple
relationship between instant wave steepness and time or fetch of wave
development expressed in wave... | 1411.7235v1 |
2016-06-03 | Spatial-mode-interaction-induced dispersive-waves and their active tuning in microresonators | The nonlinear propagation of optical pulses in dielectric waveguides and
resonators provides a laboratory to investigate a wide range of remarkable
interactions. Many of the resulting phenomena find applications in optical
systems. One example is dispersive wave generation, the optical analog of
Cherenkov radiation. Th... | 1606.00954v1 |
2017-03-24 | Turbulence of Weak Gravitational Waves in the Early Universe | We study the statistical properties of an ensemble of weak gravitational
waves interacting nonlinearly in a flat space-time. We show that the resonant
three-wave interactions are absent and develop a theory for four-wave
interactions in a reduced case of a diagonal metric tensor. In this limit,
where only one type of g... | 1703.09069v3 |
2022-07-06 | Periodic and solitary wave solutions of the long wave-short wave Yajima-Oikawa-Newell model | Models describing long wave-short wave resonant interactions have many
physical applications from fluid dynamics to plasma physics. We consider here
the Yajima-Oikawa-Newell (YON) model, which has been recently introduced
combining the interaction terms of two long wave-short wave, integrable models,
one proposed by Ya... | 2207.02499v1 |
1999-01-29 | Excitation of Electromagnetic Wake Fields by one-dimensional Electron Bunch in Plasma in the Presence of Circularly Polarized Intense Electromagnetic Wave | The excitation of electromagnetic (EM) wake waves in electron plasma by an
one-dimensional bunch of charged particles has been considered in the presence
of intense monochromatic circularly polarized electromagnetic (CPEM) pump wave.
In the zero state (in the absence of bunch) the interaction of the pump wave
with plas... | 9901059v1 |
2016-11-16 | Global regularity for the 3D finite depth capillary water waves | In this paper, we prove global regularity, scattering, and the non-existence
of small traveling waves for the $3D$ finite depth capillary waves system for
small initial data. The non-existence of small traveling waves shows a
fundamental difference between the capillary waves ($\sigma=1, g=0$) and the
gravity-capillary... | 1611.05472v1 |
2021-09-09 | A new integrable model of long wave-short wave interaction and linear stability spectra | We consider the propagation of short waves which generate waves of much
longer (infinite) wave-length. Model equations of such long wave-short wave
resonant interaction, including integrable ones, are well-known and have
received much attention because of their appearance in various physical
contexts, particularly flui... | 2109.04296v1 |
1992-12-14 | Spin-Wave Theory and Finite-Size Scaling for the Heisenberg Antiferromagnet | Spin-wave perturbation theory for the Heisenberg antiferromagnet at zero
temperature is used to compute the finite-lattice corrections to the ground
state energy, the staggered magnetization and the energy gap. The dispersion
relation, the spin-wave velocity and the bulk ground state energy to order
$O(1/S^2)$ are also... | 9212020v1 |
1995-02-10 | The influence of structure disorder on mean atomic momentum fluctuations and a spin-wave spectrum | The relation between atomic momenta fluctuations and density fluctuations is
obtained in frames of mean-field approximation. Using two-time temperature
Green functions within Tyablikov approximation the equations for spin
excitation energy and damping are obtained. The asymptotics of energy and
damping in the long-wave... | 9502042v1 |
1996-07-24 | Long Wavelength Anomalous Diffusion Mode in the 2D XY Dipole Magnet | In 2D XY ferromagnet the dipole force induces a strong interaction between
spin-waves in the long-wavelength limit. The major effect of this interaction
is the transformation of a propagating spin-wave into a diffusion mode. We
study the anomalous dynamics of such diffusion modes. We find that the
Janssen-De Dominics f... | 9607168v1 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.