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2021-03-10 | Quantum sensitivity limits of nuclear magnetic resonance experiments searching for new fundamental physics | Nuclear magnetic resonance is a promising experimental approach to search for
ultra-light axion-like dark matter. Searches such as the cosmic axion
spin-precession experiments (CASPEr) are ultimately limited by
quantum-mechanical noise sources, in particular, spin-projection noise. We
discuss how such fundamental limit... | 2103.06284v1 |
2021-10-31 | Electron-Spin-Resonance in a proximity-coupled MoS2/Graphene van-der-Waals heterostructure | Coupling graphene's excellent electron and spin transport properties with
higher spin-orbit coupling material allows tackling the hurdle of spin
manipulation in graphene, due to the proximity to van-der-Waals layers. Here we
use magneto transport measurements to study the electron spin resonance on a
combined system of... | 2111.00530v2 |
2021-11-17 | Large photogalvanic spin current by magnetic resonance in bilayer Cr trihalides | Magnetic materials show rich optical responses related to the magnetic order.
These phenomena reflect the nature of their excitations, providing a powerful
probe for the magnetic states and a way to control them. In recent years, such
studies were extended to the optical control of spin current using nonlinear
optical ... | 2111.09007v1 |
2022-01-04 | Enhanced coupling of electron and nuclear spins by quantum tunneling resonances | Noble-gas spins feature hours long coherence times owing to their great
isolation from the environment, and find practical usage in various
applications. However, this isolation leads to extremely slow preparation
times, relying on weak spin transfer from an electron-spin ensemble. Here we
propose a controllable mechan... | 2201.01255v1 |
2022-03-11 | Rotational viscosity in spin resonance of hydrodynamic electrons | In novel ultra-pure materials electrons can form a viscous fluid, which is
fundamentally different by its dynamics from the electron gas in ordinary
conductors with significant density of defects. The shape of the non-stationary
flow of such electron fluid is similar to the alternating flow of blood in
large-radius art... | 2203.06070v4 |
2022-10-19 | Spatially Resolving Electron Spin Resonance of $π$-Radical in Single-molecule Magnet | The spintronic properties of magnetic molecules have attracted significant
scientific attention. Special emphasis has been placed on the qubit for quantum
information processing. The single molecule magnet, bis(phthalocyaninato (Pc))
Tb(III) (TbPc2), is one of the best examined cases in which the delocalized
{\pi}-radi... | 2210.10235v2 |
2023-03-06 | Phase driving hole spin qubits | The spin-orbit interaction in spin qubits enables spin-flip transitions,
resulting in Rabi oscillations when an external microwave field is resonant
with the qubit frequency. Here, we introduce an alternative driving mechanism
of hole spin qubits, where a far-detuned oscillating field couples to the qubit
phase. Phase ... | 2303.03350v1 |
2024-03-18 | High-Fidelity Entangling Gates for Electron and Nuclear Spin Qubits in Diamond | Motivated by the recent experimental progress in exploring the use of a
nitrogen-vacancy (NV) center in diamond as a quantum computing platform, we
propose schemes for fast and high-fidelity entangling gates on this platform.
Using both analytical and numerical calculations, we demonstrate that
synchronization effects ... | 2403.11553v1 |
2014-08-05 | Collective Mode at Lifshitz Transition in Iron-Pnictide Superconductors | We obtain the exact low-energy spectrum of two mobile holes in a t-J model
for an isolated layer in an iron-pnictide superconductor. The minimum d xz and
d yz orbitals per iron atom are included, with no hybridization between the
two. After tuning the Hund coupling to a putative quantum critical point (QCP)
that separa... | 1408.0864v4 |
2018-07-24 | Electrical manipulation of semiconductor spin qubits within the g-matrix formalism | We discuss the modeling of the electrical manipulation of spin qubits in the
linear-response regime where the Rabi frequency is proportional to the magnetic
field and to the radio-frequency electric field excitation. We show that the
Rabi frequency can be obtained from a generalized g-tensor magnetic resonance
formula ... | 1807.09185v2 |
2015-11-02 | Effects of Rashba spin-orbit coupling, Zeeman splitting and gyrotropy in two-dimensional cavity polaritons under the influence of the Landau quantization | GaAs-type quantum wells (QWs) with p-type valence band embedded into the
resonators. The Landau quantization of the electrons and heavy-holes (hh) was
investigated taking into account the Rashba spin-orbit coupling with
third-order chirality terms for hh and with nonparabolicity terms in their
dispersion low including ... | 1603.09571v1 |
2022-03-30 | Optimisation of electrically-driven multi-donor quantum dot qubits | Multi-donor quantum dots have been at the forefront of recent progress in
Si-based quantum computation. Among them, $2P:1P$ qubits have a built-in dipole
moment, enabling all-electrical spin operation via hyperfine mediated electron
dipole spin resonance (EDSR). The development of all-electrical multi-donor dot
qubits ... | 2203.16553v1 |
2023-01-28 | Proximity-enhanced valley Zeeman splitting at the WS$_2$/graphene interface | The valley Zeeman physics of excitons in monolayer transition metal
dichalcogenides provides valuable insight into the spin and orbital degrees of
freedom inherent to these materials. Being atomically-thin materials, these
degrees of freedom can be influenced by the presence of adjacent layers, due to
proximity interac... | 2301.12234v1 |
2017-09-24 | Double-negative acoustic metamaterials | The aim of this paper is to provide a mathematical theory for understanding
the mechanism behind the double-negative refractive index phenomenon in bubbly
fluids. The design of double-negative metamaterials generally requires the use
of two different kinds of subwavelength resonators, which may limits the
applicability... | 1709.08177v2 |
2018-09-25 | Connection between asymptotic normalization coefficients and resonance widths of mirror states | Asymptotic normalization coefficients (ANCs) are fundamental nuclear
constants playing important role in nuclear reactions, nuclear structure and
nuclear astrophysics. In this paper a connection between ANCs and resonance
widths of the mirror states is established. Using Pinkston-Satchler equation
the ratio for resonan... | 1809.09980v1 |
2020-12-02 | A complex-valued resonance model for axisymmetric screech tones in supersonic jets | We model the resonance mechanism underpinning generation of A1 and A2 screech
tones in an under-expanded supersonic jet. Starting from the resonance model
recently proposed by \cite{mancinelli2019screech}, where the
upstream-travelling wave is a neutrally-stable guided jet mode, we here present
a more complete linear-s... | 2012.01342v2 |
2017-11-21 | Eavesdropping on spin waves inside the domain-wall nanochannel via three-magnon processes | One recent breakthrough in the field of magnonics is the experimental
realization of reconfigurable spin-wave nanochannels formed by magnetic domain
wall with a width of $10-100$ nm [Wagner \emph{et al}., Nat. Nano. \textbf{11},
432 (2016)]. This remarkable progress enables an energy-efficient spin-wave
propagation wit... | 1711.07615v2 |
2012-10-30 | Spin-singlet Gaffnian wave function for fractional quantum Hall systems | We characterize in detail a wave function conceivable in fractional quantum
Hall systems where a spin or equivalent degree of freedom is present. This wave
function combines the properties of two previously proposed quantum Hall wave
functions, namely the non-Abelian spin-singlet state and the nonunitary
Gaffnian wave ... | 1210.8143v3 |
2024-01-31 | Magnetic polarons beyond linear spin-wave theory: Mesons dressed by magnons | When a mobile hole is doped into an antiferromagnet, its movement will
distort the surrounding magnetic order and yield a magnetic polaron. The
resulting complex interplay of spin and charge degrees of freedom gives rise to
very rich physics and is widely believed to be at the heart of high-temperature
superconductivit... | 2402.00130v1 |
2012-12-20 | The Dispersion Relations and Instability Thresholds of Oblique Plasma Modes in the Presence of an Ion Beam | An ion beam can destabilize Alfv\'en/ion-cyclotron waves and
magnetosonic/whistler waves if the beam speed is sufficiently large. Numerical
solutions of the hot-plasma dispersion relation have previously shown that the
minimum beam speed required to excite such instabilities is significantly
smaller for oblique modes w... | 1212.5192v2 |
2004-06-09 | Time-Dependent Spin-Polarized Transport Through a Resonant Tunneling Structure with Multi-Terminal | The spin-dependent transport of the electrons tunneling through a resonant
tunneling structure with ferromagnetic multi-terminal under dc and ac fields is
explored by means of the nonequilibrium Green function technique. A general
formulation for the time-dependent current and the time-averaged current is
established. ... | 0406221v1 |
2016-08-27 | Impact of g-factors and valleys on spin qubits in a silicon double quantum dot | We define single electron spin qubits in a silicon MOS double quantum dot
system. By mapping the qubit resonance frequency as a function of gate-induced
electric field, the spectrum reveals an anticrossing that is consistent with an
inter-valley spin-orbit coupling. We fit the data from which we extract an
inter-valley... | 1608.07748v2 |
2019-08-07 | Continuous monitoring of a trapped, superconducting spin | Readout and control of fermionic spins in solid-state systems are key
primitives of quantum information processing and microscopic magnetic sensing.
The highly localized nature of most fermionic spins decouples them from
parasitic degrees of freedom, but makes long-range interoperability difficult
to achieve. In light ... | 1908.02800v1 |
2002-08-22 | Electronic spin precession in semiconductor quantum dots with spin-orbit coupling | The electronic spin precession in semiconductor dots is strongly affected by
the spin-orbit coupling. We present a theory of the electronic spin resonance
at low magnetic fields that predicts a strong dependence on the dot occupation,
the magnetic field and the spin-orbit coupling strength. Coulomb interaction
effects ... | 0208425v1 |
2003-08-13 | Nuclear spin relaxation probed by a single quantum dot | We present measurements on nuclear spin relaxation probed by a single quantum
dot in a high-mobility electron gas. Current passing through the dot leads to a
spin transfer from the electronic to the nuclear spin system. Applying electron
spin resonance the transfer mechanism can directly be tuned. Additionally, the
dep... | 0308243v1 |
2005-06-30 | Magnon transport and spin current switching through quantum dots | We study the nonequilibrium spin current through a quantum dot consisting of
two localized spin-1/2 coupled to two ferromagnetic insulators. The influence
of an intra-dot magnetic field and exchange coupling, different dot-reservoir
coupling configurations, and the influence of magnon chemical potential
differences vs.... | 0506806v1 |
2005-10-16 | Slow transverse relaxation of the Zn-neighbor Cu nuclear spins in YBa2(Cu{1-x}Znx)4O8 | An explanation is given for the recent observation in the plane-site Cu
nuclear quadrupole resonance (NQR) study of a heavily Zn-substituted
YBa$_2$(Cu$_{1-x}$Zn$_x$)$_4$O$_{8}$ that the Cu nuclear spin-spin relaxation
time $T_{2G}$ near the impurity Zn is longer than that away from Zn. The long
$T_{2G}$ of the Zn-neig... | 0510415v1 |
2005-12-16 | Line Broadening and Decoherence of Electron Spins in Phosphorus-Doped Silicon Due to Environmental 29^Si Nuclear Spins | Phosphorus-doped silicon single crystals with 0.19 % <= f <= 99.2 %, where f
is the concentration of 29^Si isotopes, are measured at 8 K using a pulsed
electron spin resonance technique, thereby the effect of environmental 29^Si
nuclear spins on the donor electron spin is systematically studied. The
linewidth as a func... | 0512404v1 |
2006-03-09 | Spin Current and Current-Induced Spin Transfer Torque in Ferromagnet-Quantum Dot-Ferromagnet Coupled Systems | Based on Keldysh's nonequilibrium Green function method, the spin-dependent
transport properties in a ferromagnet-quantum dot (QD)-ferromagnet coupled
system are investigated. It is shown the spin current shows quite different
characteristics from its electrical counterpart, and by changing the relative
orientation of ... | 0603235v1 |
2006-11-28 | Generation of dc spin current in a narrow channel with Rashba and Dresselhaus spin-orbit interaction | We consider a finite range ac-biased front gate acting upon a quantum channel
with Rashba and Dresselhaus spin-orbit interaction effects. The ac-biased gate,
giving rise to a dynamical Rashba coupling, causes spin-resolved coherent
resonant inelastic scattering. A pure dc spin current is subsequently generated
without ... | 0611703v1 |
2007-01-28 | Nuclear spin diffusion in the semiconductor TlTaS3 | We report on a 203Tl and 205Tl nuclear magnetic resonance study of the chain
ternary semiconductor TlTaS3. We show that spin-lattice relaxation in this
compound is driven by two contributions, namely by interactions of nuclear
spins with thermally activated carriers and with localized electron spins. The
latter mechani... | 0701688v1 |
2007-02-26 | Room Temperature Electrical Detection of Spin Coherence in C60 | An experimental demonstration of electrical detection of coherent spin motion
of weakly coupled, localized electron spins in thin Fullerene C60 films at room
temperature is presented. Pulsed electrically detected magnetic resonance
experiments on vertical photocurrents through Al/C60/ZnO samples showed that an
electron... | 0702604v1 |
2003-10-07 | Minimization of nonresonant effects in a scalable Ising spin quantum computer | The errors caused by the transitions with large frequency offsets
(nonresonant transitions) are calculated analytically for a scalable
solid-state quantum computer based on a one-dimensional spin chain with Ising
interactions between neighboring spins. Selective excitations of the spins are
enabled by a uniform gradien... | 0310049v1 |
2007-05-15 | The Nuclear Spin Nanomagnet | Linearly polarized light tuned slightly below the optical transition of the
negatively charged exciton (trion) in a single quantum dot causes the
spontaneous nuclear spin polarization (self-polarization) at a level close to
100%. The effective magnetic field of spin-polarized nuclei brings the optical
transition energy... | 0705.2167v2 |
2007-11-21 | Strain-assisted spin manipulating and the discerption of strain-induced spin splitting | We show that the efficiency of manipulating electron spin in semiconductor
quantum wells can be enhanced by tuning the strain strength. The effect
combining intrinsic and strain-induced spin splitting varies for different
systems, which provides an alternative route to understand the experimental
phenomena brought in b... | 0711.3378v1 |
2008-04-09 | Electric field control of spin-orbit splittings in GaAs/AlGaAs coupled quantum wells | Electron spin dynamics is investigated in n-i-n GaAs/AlGaAs coupled quantum
wells. The electron spin dephasing time is measured as a function of an
external electrical bias under resonant excitation of the 1sHH intrawell
exciton using a time-resolved Kerr rotation technique. It is found a strong
electron spin dephasing... | 0804.1483v1 |
2008-05-05 | Visualizing the spin of individual molecules | Low-temperature spin-polarized scanning tunneling microscopy is employed to
study spin transport across single Cobalt-Phathalocyanine molecules adsorbed on
well characterized magnetic nanoleads. A spin-polarized electronic resonance is
identified over the center of the molecule and exploited to spatially resolve
statio... | 0805.0485v1 |
2009-02-26 | Qubit protection in nuclear-spin quantum dot memories | We present a mechanism to protect quantum information stored in an ensemble
of nuclear spins in a semiconductor quantum dot. When the dot is charged the
nuclei interact with the spin of the excess electron through the hyperfine
coupling. If this coupling is made off-resonant it leads to an energy gap
between the collec... | 0902.4566v1 |
2009-06-20 | Wavevector-dependent spin filtering and spin transport through magnetic barriers in graphene | We study the spin-resolved transport through magnetic nanostructures in
monolayer and bilayer graphene. We take into account both the orbital effect of
the inhomogeneous perpendicular magnetic field as well as the in-plane spin
splitting due to the Zeeman interaction and to the exchange coupling possibly
induced by the... | 0906.3809v1 |
2009-07-01 | Control of Spin Blockade by AC Magnetic Fields in Triple Quantum Dots | We analyze coherent spin phenomena in triple quantum dots in triangular
configuration under crossed DC and AC magnetic fields. In particular, we
discuss the interplay between Aharonov-Bohm current oscillations, coherent
electron trapping and spin blockade under electron spin resonance conditions.
We demonstrate that, f... | 0907.0182v2 |
2011-06-15 | Spin Scissors Mode and the Fine Structure of M1 States in Nuclei | The coupled dynamics of low lying modes, including the scissors mode, and
various giant quadrupole resonances are studied with the help of the Wigner
Function Moments method generalized to take into account spin degrees of
freedom. Equations of motion for collective variables are derived on the basis
of Time Dependent ... | 1106.2963v1 |
2012-07-29 | Squeezing of Collective Excitations in Spin Ensembles | We analyse the possibility to create two-mode spin squeezed states of two
separate spin ensembles by inverting the spins in one ensemble and allowing
spin exchange between the ensembles via a near resonant cavity field. We
investigate the dynamics of the system using a combination of numerical and
analytic calculations... | 1207.6772v1 |
2012-08-02 | Stimulated emission of radiation using spin-population inversion in metals: a spin-laser | Arrays of 10 nm-diameter point contacts of exchange-coupled
spin-majority/spin-minority ferromagnetic metals, integrated into
infrared-terahertz range photon resonators, are fabricated and measured
electrically and optically. Giant, threshold-type electronic excitations under
high-current pumping of the devices are obs... | 1208.0550v2 |
2012-08-15 | Gate voltage control over spin relaxation length | Spin currents in channels of a high mobility GaAs/AlGaAs two-dimensional
electron gas are generated and detected using spin-polarized quantum point
contacts. We have recently shown that the relaxation length of spin currents is
resonantly suppressed when the frequency at which electrons bounce between
channel walls mat... | 1208.3106v1 |
2012-10-18 | Spin-blockade qubit in a superconducting junction | We interpret a recent pioneering experiment [Zgirski M. et al., Phys. Rev.
Lett., 106 (2011) 257003] on quasiparticle manipulation in a superconducting
break junction in terms of spin blockade drawing analogy with spin qubits. We
propose a novel qubit design that exploits the spin state of two trapped
quasiparticles. W... | 1210.5151v1 |
2014-07-08 | Spin Orbit Coupling in Periodically Driven Optical Lattices | We propose a method for the emulation of artificial spin orbit coupling in a
system of ultracold, neutral atoms trapped in a tight-binding lattice. This
scheme does not involve near-resonant laser fields, avoiding the heating
processes connected to the spontaneous emission of photons. In our case, the
necessary spin de... | 1407.1953v2 |
2014-07-29 | Quantum Model Of Spin Noise | Any ensemble of quantum particles exhibits statistical fluctuations known as
spin noise. Here, we provide a description of spin noise in the language of
open quantum systems. The description unifies the signatures of spin noise
under both strong and weak measurements. Further, the model accounts for
arbitrary spin dyna... | 1407.7620v2 |
2016-03-24 | Semiclassical Landau quantization of spin-orbit coupled systems | A semiclassical quantization condition is derived for Landau levels in
general spin-orbit coupled systems. This generalizes the Onsager quantization
condition via a matrix-valued phase which describes spin dynamics along the
classical cyclotron trajectory. We discuss measurement of the matrix phase via
magnetic oscilla... | 1603.07450v1 |
2020-03-29 | Long-term spin state storage using ancilla charge memories | We articulate confocal microscopy and electron spin resonance to implement
spin-to-charge conversion in a small ensemble of nitrogen-vacancy (NV) centers
in bulk diamond, and demonstrate charge conversion of neighboring defects
conditional on the NV spin state. We build on this observation to show
time-resolved NV spin... | 2003.13148v1 |
2019-10-13 | Spin excitations in nickelate superconductors | We study theoretically spin excitations in the newly discovered nickelate
superconductors based on a single-band model and the random phase
approximation. The spin excitations are found to be incommensurate in a low
energy region. A spin resonance phenomena is revealed as the excitation energy
increases. The maximum in... | 1910.05757v2 |
2019-12-24 | Large spin Hall angle and spin mixing conductance in highly resistive antiferromagnetic Mn2Au | Antiferromagnetic (AFM) materials recently have shown interest in the
research in spintronics due to its zero stray magnetic field, high anisotropy,
and spin orbit coupling. In this context, the bi-metallic AFM Mn2Au has drawn
attention because it exhibits unique properties and its Neel temperature is
very high. Here, ... | 1912.11522v2 |
2020-02-05 | Correlated motion of particle-hole excitations across the renormalized spin-orbit gap in $\rm Sr_2 Ir O_4$ | The high-energy collective modes of particle-hole excitations across the
spin-orbit gap in $\rm Sr_2IrO_4$ are investigated using the transformed
Coulomb interaction terms in the pseudo-spin-orbital basis constituted by the
$J=1/2$ and $3/2$ states arising from spin-orbit coupling. With appropriate
interaction strength... | 2002.02415v1 |
2023-11-27 | Probing spin fractionalization with ESR-STM absolute magnetometry | The emergence of effective $S=1/2$ spins at the edges of $S=1$ Haldane spin
chains is one of the simplest examples of fractionalization. Whereas there is
indirect evidence of this phenomenon, direct measurement of the magnetic moment
of an individual edge spin remains to be done. Here we show how scanning tunnel
micros... | 2311.15720v1 |
2024-03-21 | Efecto Hall de espin inverso en peliculas de Nb Mo y Bi por bombeo de espin | The inverse spin Hall effect used for detection of spin currents was observed
by voltage measurements in bilayers of normal metal (NM)/ferromagnetic metal
(FM), using Nb, Mo and Bi as normal metal and Permalloy (Py,
Ni$_{81}$Fe$_{19}$) as ferromagnetic metal. The spin current was generated by
the spin pumping effect wi... | 2403.17976v1 |
2015-02-26 | Unsteady self-sustained detonation waves in flake aluminum dust/air mixtures | Self-sustained detonation waves in flake aluminum dust/air mixtures have been
studied in a tube of diameter 199 mm and length 32.4 m. A pressure sensor array
of 32 sensors mounted around certain circumferences of the tube was used to
measure the shape of the detonation front in the circumferential direction and
pressur... | 1503.01045v1 |
2009-11-01 | Transmission resonances in above-barrier reflection of ultra-cold atoms by the Rosen-Morse potential | Quantum above-barrier reflection of ultra-cold atoms by the Rosen-Morse
potential is analytically considered within the mean field Gross-Pitaevskii
approximation. Reformulating the problem of reflectionless transmission as a
quasi-linear eigenvalue problem for the potential depth, an approximation for
the specific heig... | 0911.0158v1 |
2012-06-01 | Theoretical formalism for collective electromagnetic response of discrete metamaterial systems | We develop a general formalism to describe the propagation of a near-resonant
electromagnetic field in a medium composed of magnetodielectric resonators. As
the size and the spatial separation of nanofabricated resonators in a
metamaterial array is frequently less than the wavelength, we describe them as
discrete scatt... | 1206.0204v2 |
2018-08-30 | Large scale changes in overtone resonances and resonant peak burning of HBAR with mass loading and its potential for applications | This report presents the realization and characterization of a robust
composite resonator i.e. high overtone bulk acoustic wave resonator (HBAR) and
the changes happening to the resonance peaks once it undergoes mass loading
which has got the potential for application in material characterization,
communication system ... | 1808.10118v2 |
2020-11-30 | Resonances for Schrödinger operators on infinite cylinders and other products | We study the resonances of Schr\"odinger operators on the infinite product
$X=\mathbb{R}^d\times \mathbb{S}^1$, where $d$ is odd, $\mathbb{S}^1$ is the
unit circle, and the potential $V\in L^\infty_c(X)$. This paper shows that at
high energy, resonances of the Schr\"odinger operator $-\Delta +V$ on
$X=\mathbb{R}^d\time... | 2011.14513v2 |
2009-02-17 | Fano resonances in nanoscale structures | Nowadays nanotechnology allows to scale-down various important devices
(sensors, chips, fibres, etc), and, thus, opens up new horizon for their
applications. Nevertheless, the efficiency most of them is still based on the
fundamental physical phenomena, such as resonances. Thus, the understanding of
the resonance pheno... | 0902.3014v4 |
1995-12-13 | Model for Resonance Enhancement of P- and T-noninvariant Effects in Neutron Reactions | We consider a simplified model for resonant neutron-nucleus interaction with
coupled channels. An analytical solution is given for two coupled channels and
arbitrary neutron orbital momentum. A case of a week channel coupling,
corresponding to narrow Breit-Wigner resonance, is analyzed in details. As far
as the total w... | 9512020v2 |
2010-12-10 | Quantum pumping in graphene nanoribbons at resonant transmission | Adiabatic quantum charge pumping in graphene nanoribbon double barrier
structures with armchair and zigzag edges in the resonant transmission regime
is analyzed. Using recursive Green's function method we numerically calculate
the pumped charge for pumping contours encircling a resonance. We find that for
armchair ribb... | 1012.2221v1 |
2016-08-22 | Metallic coplanar resonators optimized for low-temperature measurements | Metallic coplanar microwave resonators are widely employed at room
temperature, but their low-temperature performance has received little
attention so far. We characterize compact copper coplanar resonators with
multiple modes from 2.5 to 20 GHz at temperatures as low as 5 K. We investigate
the influence of center cond... | 1608.06122v1 |
2018-09-28 | Towards the Minimal Spectrum of Excited Baryons | In the light baryon sector resonances can be broad and overlapping and are in
most cases not directly visible in the cross section data. Automatized model
selection techniques that introduce penalties for resonances can be used to
determine the minimally needed set of resonances to describe the data. Several
possible p... | 1810.00075v2 |
2019-08-30 | A case study about the mass exclusion limits for the BSM vector resonances with the direct couplings to the third quark generation | The upper bounds that the LHC measurements searching for heavy resonances
beyond the Standard model set on the resonance production cross sections are
not universal. They depend on various characteristics of the resonance under
consideration, like its mass, spin, and its interaction pattern. Their validity
are also lim... | 1908.11619v2 |
2023-09-28 | Quantum Resonance viewed as Weak Measurement | Quantum resonance, i.e., amplification in transition probability available
under certain conditions, offers a powerful means for determining fundamental
quantities in physics, including the time duration of the second adopted in the
SI units and neutron's electric dipole moment which is directly linked to CP
violation.... | 2309.16281v2 |
2022-03-03 | Spin Hall effects and the localization of massless spinning particles | The spin Hall effects of light represent a diverse class of
polarization-dependent physical phenomena involving the dynamics of
electromagnetic wave packets. In a medium with an inhomogeneous refractive
index, wave packets can be effectively described by massless spinning particles
following polarization-dependent traj... | 2203.01753v2 |
2022-02-24 | Coherence of ion cyclotron resonance for damping ion cyclotron waves in space plasmas | Ion cyclotron resonance is one of the fundamental energy conversion processes
through field-particle interaction in collisionless plasmas. However, the key
evidence for ion cyclotron resonance (i.e., the coherence between
electromagnetic fields and the ion phase space density) and the resulting
damping of ion cyclotron... | 2202.11967v1 |
2005-09-04 | Grazing-angle scattering of electromagnetic waves in gratings with varying mean parameters: grating eigenmodes | A highly unusual pattern of strong multiple resonances for bulk
electromagnetic waves is predicted and analysed numerically in thick periodic
holographic gratings in a slab with the mean permittivity that is larger than
that of the surrounding media. This pattern is shown to exist in the geometry
of grazing-angle scatt... | 0509029v1 |
2007-12-01 | Feshbach shape resonance for high Tc superconductivity in superlattices of nanotubes | The case of a Feshbach shape resonance in the pairing mechanism for high T c
superconductivity in a crystalline lattice of doped metallic nanotubes is
described. The superlattice of doped metallic nanotubes provides a
superconductor with a strongly asymmetric gap. The disparity and different
spatial locations of the wa... | 0712.0061v1 |
2010-03-30 | Change of the resonant electron orbit from trapped orbit to passing orbit in fast wave current drive | In fast wave current drive, the resonant electron is accelerated by fast wave
in the direction parallel to the static magnetic field, and the parallel
velocity will be increased. The trajectories of the trapped resonant electrons
are calculated with a computer code in which fast wave-induced diffusion in
velocity space... | 1003.5719v1 |
2010-12-30 | A lattice model for resonance in open periodic waveguides | We present a discrete model of resonant scattering of waves by an open
periodic waveguide. The model elucidates a phenomenon common in
electromagnetics, in which the interaction of plane waves with embedded guided
modes of the waveguide causes sharp transmission anomalies and field
amplification. The ambient space is m... | 1101.0170v1 |
2013-01-02 | Tidal Instability and Superhump by a Wave-Wave Resonant Model | On a disk deformed to a non-axisymmetric form, a set of oscillations can be
excited by their resonant interaction through the disk deformation (Kato et al.
2011). This resonant instability process has been proposed to suggest a
possible cause of the high-frequency quasi-periodic oscillations (HF QPOs)
observed in black... | 1301.0232v1 |
2013-11-08 | Theory of a Directive Optical Leaky Wave Antenna Integrated into a Resonator and Enhancement of Radiation Control | We provide for the first time the detailed study of the radiation performance
of an optical leaky wave antenna (OLWA) integrated into a Fabry-P\'erot
resonator. We show that the radiation pattern can be expressed as the one
generated by the interference of two leaky waves counter-propagating in the
resonator leading to... | 1311.1858v1 |
2016-06-02 | Parametrically tunable soliton-induced resonant radiation by three-wave mixing | We show that a temporal soliton can induce resonant radiation by three-wave
mixing nonlinearities. This constitutes a new class of resonant radiation whose
spectral positions are parametrically tunable. The experimental verification is
done in a periodically poled lithium niobate crystal, where a femtosecond
near-IR so... | 1606.00572v4 |
2016-06-06 | A Resonant Mode for Gravitational Wave Detectors based on Atom Interferometry | We describe an atom interferometric gravitational wave detector design that
can operate in a resonant mode for increased sensitivity. By oscillating the
positions of the atomic wavepackets, this resonant detection mode allows for
coherently enhanced, narrow-band sensitivity at target frequencies. The
proposed detector ... | 1606.01860v2 |
2019-11-26 | Mapping for nonlinear electron interaction with whistler-mode waves | The resonant interaction of relativistic electrons and whistler waves is an
important mechanism of electron acceleration and scattering in the Earth
radiation belts and other space plasma systems. For low amplitude waves, such
an interaction is well described by the quasi-linear diffusion theory, whereas
nonlinear reso... | 1911.11459v1 |
2018-02-14 | Pathway towards programmable wave anisotropy in cellular metamaterials | In this work, we provide a proof-of-concept experimental demonstration of the
wave control capabilities of cellular metamaterials endowed with populations of
tunable electromechanical resonators. Each independently tunable resonator
comprises a piezoelectric patch and a resistor-inductor shunt, and its resonant
frequen... | 1802.04959v1 |
2019-06-25 | Topologically protected edge modes in one-dimensional chains of subwavelength resonators | The goal of this paper is to advance the development of wave-guiding
subwavelength crystals by developing designs whose properties are stable with
respect to imperfections in their construction. In particular, we make use of a
locally resonant subwavelength structure, composed of a chain of high-contrast
resonators, to... | 1906.10688v2 |
2020-04-20 | Resonant whistler-electron interactions: MMS observations vs. test-particle simulation | Simultaneous observation of characteristic 3-dimensional (3D) signatures in
the electron velocity distribution function (VDF) and intense
quasi-monochromatic waves by the Magnetospheric Multiscale (MMS) spacecraft in
the terrestrial magnetosheath are investigated. The intense wave packets are
characterised and modeled ... | 2004.09130v1 |
2020-04-21 | Fabry-Perot resonance of water waves | We show that significant water wave amplification is obtained in a water
resonator consisting of two spatially separated patches of small-amplitude
sinusoidal corrugations on an otherwise flat seabed. The corrugations reflect
the incident waves according to the so-called Bragg reflection mechanism, and
the distance bet... | 2004.09967v1 |
2019-03-14 | Quantum expander for gravitational-wave observatories | Quantum uncertainty of laser light limits the sensitivity of
gravitational-wave observatories. In the past 30 years, techniques for
squeezing the quantum uncertainty as well as for enhancing the
gravitational-wave signal with optical resonators were invented. Resonators,
however, have finite linewidths; and the high si... | 1903.05930v1 |
2020-03-24 | Imaging the onset of the resonance regime in low-energy NO-He collisions | At low energies, the quantum wave-like nature of molecular interactions
result in unique scattering behavior, ranging from the universal Wigner laws
near zero Kelvin to the occurrence of scattering resonances at higher energies.
It has proven challenging to experimentally probe the individual waves
underlying these phe... | 2003.10742v1 |
2016-11-02 | Wave emission and absorption at spectral singularities | We studied the critical dynamics of spectral singularities. The system
investigated is a coupled resonator array with a side-coupled loss (gain)
resonator. For a gain resonator, the system acts as a wave emitter at spectral
singularities. The reflection probability increased linearly over time. The
rate of increase is ... | 1611.00572v1 |
2020-05-10 | Experimental investigation of amplification, via a mechanical delay-line, in a rainbow-based metasurface for energy harvesting | We demonstrate that a rainbow-based metasurface, created by a graded array of
resonant rods attached to an elastic beam, operates as a mechanical delay-line
by slowing down surface elastic waves to take advantage of wave interaction
with resonance. Experiments demonstrate that the rainbow effect reduces the
amplitude o... | 2005.04792v1 |
2022-04-12 | Free-space-coupled wavelength-scale disk resonators | Optical microresonators with low quality factor ($Q$) can be efficiently
excited by and scatter freely propagating optical waves, but those with high
$Q$ typically cannot. Here, we present a universal model for resonators
interacting with freely propagating waves and show that the stored energy of a
resonator excited b... | 2204.05816v1 |
2022-06-20 | A modified Bragg's law of Class I Bragg resonances of linear long waves excited by an array of artificial bars | Based on the band theory of Bloch waves, a modified Bragg's law is
established for Class I Bragg resonances when linear long waves are reflected
by a finite periodic array of artificial bars, including rectangular,
parabolic, rectified cosinoidal, isosceles trapezoidal, and isosceles
triangular bars. The modified Bragg... | 2206.13243v1 |
2022-08-24 | Ultrasonic wave transport in concentrated disordered resonant emulsions | We show how resonant (near-field) coupling affects wave transport in
disordered media through ultrasonic experiments in concentrated suspensions.
The samples consist of resonant emulsions in which oil droplets are suspended
in a liquid gel. By varying the droplet concentration, the limits of the
Independent Scattering ... | 2208.11684v1 |
2009-05-14 | Modulational instability of Rossby and drift waves and generation of zonal jets | We study the modulational instability of geophysical Rossby and plasma drift
waves within the Charney-Hasegawa-Mima (CHM) model both theoretically, using
truncated (four-mode and three-mode) models, and numerically, using direct
simulations of CHM equation in the Fourier space. The linear theory predicts
instability fo... | 0905.2243v1 |
2004-09-26 | The improvement wave equations of relativistic and non-relativistic quantum mechanics | In this work, we follow the idea of the De Broglie's matter waves and the
analogous method that Schr\"{o}dinger founded wave equation, but we apply the
more essential Hamilton principle instead of the minimum action principle of
Jacobi which was used in setting up Schr\"{o}dinger wave equation. Thus, we
obtain a novel ... | 0409176v1 |
2009-03-09 | An EOM-assisted wave-vector-resolving Brillouin light scattering setup | Brillouin light scattering spectroscopy is a powerful technique which
incorporates several extensions such as space-, time-, phase- and wave-vector
resolution.
Here, we report on the improvement of the wave-vector resolution by including
an electro-optical modulator. This provides a reference to calibrate the
positio... | 0903.1536v1 |
2014-11-04 | Chaotic Dynamics of Stellar Spin Driven by Planets Undergoing Lidov-Kozai Oscillations: Resonances and Origin of Chaos | Many exoplanetary systems containing hot Jupiters are found to possess
significant misalignment between the spin axis of the host star and the
planet's orbital angular momentum axis. A possible channel for producing such
misaligned hot Jupiters involves Lidov-Kozai oscillations of the planet's
orbital eccentricity and ... | 1411.0739v1 |
2003-04-11 | Spin Manipulation of Free 2-Dimensional Electrons in Si/SiGe Quantum Wells | An important requirement for a physical embodiment of a quantum computer is
that arbitrary single-qubit operations can be performed. In the case of
spin-qubits, this means that arbitrary spin rotations must be possible. Here we
demonstrate spin rotations of an ensemble of free 2-dimensional electrons
confined to a sili... | 0304284v1 |
2003-04-29 | Spin and energy transfer in nanocrystals without transport of charge | We describe a mechanism of spin transfer between individual quantum dots that
does not require tunneling. Incident circularly-polarized photons create
inter-band excitons with non-zero electron spin in the first quantum dot. When
the quantum-dot pair is properly designed, this excitation can be transferred
to the neigh... | 0304663v2 |
2006-02-05 | Nuclear Spin Noise and STM Noise Spectroscopy | We consider fluctuations of the electronic spin due to coupling to nuclear
spin. Noise spectroscopy of an electronic spin can be revealed in the Scanning
Tunnelling Microscope (STM). We argue that the noise spectroscopy of electronic
spin can reveal the nuclear spin dynamics due to hyperfine coupling. Tunnelling
curren... | 0602113v1 |
2007-03-01 | Driven dissipative dynamics of spins in quantum dots | We have studied the dissipative dynamics of a driven electronic spin trapped
in a quantum dot. We consider the dissipative mechanism as due to the indirect
coupling of the electronic spin to acoustic phonons via the
spin-orbit/electron-phonon couplings. Using an effective spectral function of
the dissipative phonon bat... | 0703009v1 |
2001-08-06 | Quantum Measurement of a Single Spin using Magnetic Resonance Force Microscopy | Single-spin detection is one of the important challenges facing the
development of several new technologies, e.g. single-spin transistors and
solid-state quantum computation. Magnetic resonance force microscopy with a
cyclic adiabatic inversion, which utilizes a cantilever oscillations driven by
a single spin, is a pro... | 0108025v1 |
2007-06-01 | Conserved spin Hall conductance in two dimensional electron gas in a perpendicular magnetic field | Using the microscopic theory of the conserved spin current [Phys. Rev. Lett.
\textbf{96}, 076604 (2006)], we investigate the spin Hall effect in the two
dimensional electron gas system with a perpendicular magnetic field. The spin
Hall conductance $\sigma_{\mu\nu}^{s}$ as a response to the electric field
consists of tw... | 0706.0047v1 |
2007-10-11 | The role of spin noise in the detection of nanoscale ensembles of nuclear spins | When probing nuclear spins in materials on the nanometer scale, random
fluctuations of the spin polarization will exceed the mean Boltzmann
polarization for sample volumes below about (100nm)^3. In this work, we use
magnetic resonance force microscopy to observe nuclear spin fluctuations in
real time. We show how repro... | 0710.2323v2 |
2010-03-25 | Creation and manipulation of entanglement in spin chains far from equilibrium | We investigate creation, manipulation, and steering of entanglement in spin
chains from the viewpoint of quantum communication between distant parties. We
demonstrate how global parametric driving of the spin-spin coupling and/or
local time-dependent Zeeman fields produce a large amount of entanglement
between the firs... | 1003.4846v1 |
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