publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2013-02-22 | Landau-Zener dynamics of a nanoresonator containing a tunneling spin | We study the Landau-Zener dynamics of a tunneling spin coupled to a torsional
resonator. For strong spin-phonon coupling, when the oscillator frequency is
large compared to the tunnel splitting, the system exhibits multiple
Landau-Zener transitions. Entanglement of spin and mechanical angular momentum
results in abrupt... | 1302.5726v1 |
2013-04-11 | Controlling a Nanowire Spin-Orbit Qubit via Electric-Dipole Spin Resonance | A semiconductor nanowire quantum dot with strong spin-orbit coupling (SOC)
can be used to achieve a spin-orbit qubit. In contrast to a spin qubit, the
spin-orbit qubit can respond to an external ac electric field, an effect called
electric-dipole spin resonance. Here we develop a theory that can apply in the
strong SOC... | 1304.3257v2 |
2013-04-28 | Extrinsic spin Hall effect induced by resonant skew scattering in graphene | We show that the extrinsic spin Hall effect can be engineered in monolayer
graphene by decoration with small doses of adatoms, molecules, or nanoparticles
originating local spin-orbit perturbations. The analysis of the single impurity
scattering problem shows that intrinsic and Rashba spin-orbit local couplings
enhance... | 1304.7511v3 |
2013-08-19 | A Universal Method for Separating Spin Pumping from Spin Rectification Voltage of Ferromagnetic Resonance | We develop a method for universally resolving the important issue of
separating spin pumping (SP) from spin rectification (SR) signals in bilayer
spintronics devices. This method is based on the characteristic distinction of
SP and SR, as revealed in their different angular and field symmetries. It
applies generally fo... | 1308.4041v3 |
2014-04-08 | Ferromagnetic resonance spin pumping in CoFeB with highly resistive non-magnetic electrodes | The relative contribution of spin pumping and spin rectification from the
ferromagnetic resonance of CoFeB/non-magnetic bilayers was investigated as a
function of non-magnetic electrode resistance. Samples with highly resistive
electrodes of Ta or Ti exhibit a stronger spin rectification signal, which may
result in ove... | 1404.1993v1 |
2015-03-25 | Intercombination Effects in Resonant Energy Transfer | We investigate the effect of intercombination transitions in excitation
hopping processes such as those found in F\"orster resonance energy transfer.
Taking strontium Rydberg states as our model system, the breakdown of
$LS$-coupling leads to weakly allowed transitions between Rydberg states of
different spin quantum n... | 1503.07417v4 |
2015-05-12 | Spin-Orbit Coupling Fluctuations as a Mechanism of Spin Decoherence | We discuss a general framework to address spin decoherence resulting from
fluctuations in a spin Hamiltonian. We performed a systematic study on spin
decoherence in the compound K$_6$[V$_{15}$As$_6$O$_{42}$(D$_2$O)] $\cdot$
8D$_2$O, using high-field Electron Spin Resonance (ESR). By analyzing the
anisotropy of resonanc... | 1505.03177v2 |
2015-11-05 | Cassini states for black hole binaries | Cassini states correspond to the equilibria of the spin axis of a body when
its orbit is perturbed. They were initially described for planetary satellites,
but the spin axes of black hole binaries also present this kind of equilibria.
In previous works, Cassini states were reported as spin-orbit resonances, but
actuall... | 1511.01890v2 |
2015-11-20 | Hyperfine interaction mediated electric-dipole spin resonance: the role of frequency modulation | The electron spin in a semiconductor quantum dot can be coherently controlled
by an external electric field, an effect called electric-dipole spin resonance
(EDSR). Several mechanisms can give rise to the EDSR effect, among which there
is a hyperfine mechanism, where the spin-electric coupling is mediated by the
electr... | 1511.06503v2 |
2016-02-11 | Probing ultrafast spin dynamics in the antiferromagnetic multiferroic HoMnO$_3$ through a magnon resonance | We demonstrate a new approach for directly measuring the ultrafast energy
transfer between elec- trons and magnons, enabling us to track spin dynamics in
an antiferromagnet (AFM). In multiferroic HoMnO3, optical photoexcitation
creates hot electrons, after which changes in the spin order are probed with a
THz pulse tun... | 1602.03872v2 |
2016-09-07 | Spin-Polarized Surface Resonances Accompanying Topological Surface State Formation | Topological insulators host spin-polarized surface states born out of the
energetic inversion of bulk bands driven by the spin-orbit interaction. Here we
discover previously unidentified consequences of band-inversion on the surface
electronic structure of the topological insulator Bi$_2$Se$_3$. By performing
simultane... | 1609.01842v1 |
2016-09-07 | Cu nuclear magnetic resonance study of charge and spin stripe order in La$_{1.875}$Ba$_{0.125}$CuO$_4$ | We present a Cu nuclear magnetic/quadrupole resonance study of the charge
stripe ordered phase of LBCO, with detection of previously unobserved
('wiped-out') signal. We show that spin-spin and spin-lattice relaxation rates
are strongly enhanced in the charge ordered phase, explaining the apparent
signal decrease in ear... | 1609.02162v1 |
2017-12-07 | Spin-strain interaction in nitrogen-vacancy centers in diamond | The interaction of solid-state electronic spins with deformations of their
host crystal is an important ingredient in many experiments realizing quantum
information processing schemes. Here, we theoretically characterize that
interaction for a nitrogen-vacancy (NV) center in diamond. We derive the
symmetry-allowed Hami... | 1712.02684v1 |
2017-02-15 | Topological Properties of a Coupled Spin-Photon System Induced by Damping | We experimentally examine the topological nature of a strongly coupled
spin-photon system induced by damping. The presence of both spin and photonic
losses results in a non-Hermitian system with a variety of exotic phenomena
dictated by the topological structure of the eigenvalue spectra and the
presence of an exceptio... | 1702.04797v2 |
2019-05-20 | Dual-frequency spin resonance spectroscopy of diamond nitrogen-vacancy centers in zero magnetic field | The methods for controlling spin states of negatively charged
nitrogen-vacancy (NV) centers using microwave (MW) or radiofrequency (RF)
excitation fields for electron spin and nuclear spin transitions are effective
in strong magnetic fields where a level anti-crossing (LAC) occurs. A LAC can
also occur at zero field in... | 1905.08158v1 |
2020-03-17 | Dispersive Readout of Room Temperature Spin Qubits | We demonstrate dispersive readout of the spin of an ensemble of
Nitrogen-Vacancy centers in a high-quality dielectric microwave resonator at
room temperature. The spin state is inferred from the reflection phase of a
microwave signal probing the resonator. Time-dependent tracking of the spin
state is demonstrated, and ... | 2003.07562v1 |
2020-11-19 | Spin Structure and Resonant Driving of Spin-1/2 Defects in SiC | Transition metal (TM) defects in silicon carbide have favorable spin
coherence properties and are suitable as quantum memory for quantum
communication. To characterize TM defects as quantum spin-photon interfaces, we
model defects that have one active electron with spin 1/2 in the atomic $D$
shell. The spin structure, ... | 2011.09987v1 |
2021-02-04 | Resonant spin amplification in Faraday geometry | We demonstrate the realization of the resonant spin amplification (RSA)
effect in Faraday geometry where a magnetic field is applied parallel to the
optically induced spin polarization so that no RSA is expected. However, model
considerations predict that it can be realized for a central spin interacting
with a fluctua... | 2102.02780v2 |
2021-08-20 | Spin-to-Charge conversion with electrode confinement in diamond | The nitrogen-vacancy (NV) center in diamond has a wide range of potential
applications in quantum metrology, communications and computation. The key to
its use lies in how large the optical spin contrast is and the associated
fidelity of spin state readout. In this paper we propose a new mechanism for
improving contras... | 2108.09027v1 |
2021-01-06 | Spin-transport in an organic semiconductor without free charge carrier involvement | We have experimentally tested the hypothesis of free charge carrier mediated
spin-transport in the small molecule organic semiconductor Alq3 at room
temperature. A spin current was pumped into this material by pulsed
ferromagnetic resonance of an adjacent NiFe layer, while a charge current
resulting from this spin curr... | 2101.02140v1 |
2021-05-22 | Photoinduced spin-Hall resonance in a k^3-Rashba spin-orbit coupled two dimensional hole system | We study the band structure modulation and spin-Hall effect of a
two-dimensional heavy-hole system with $k^3$-Rashba spin-orbit coupling (RSOC),
irradiated by linearly polarized light. We find that the band structure becomes
anisotropic under the illumination by the light. Most remarkably, a pair of
additional spin-deg... | 2105.10732v2 |
2022-07-21 | Probing dynamics of a two-dimensional dipolar spin ensemble using single qubit sensor | Understanding the thermalization dynamics of quantum many-body systems at the
microscopic level is among the central challenges of modern statistical
physics. Here we experimentally investigate individual spin dynamics in a
two-dimensional ensemble of electron spins on the surface of a diamond crystal.
We use a near-su... | 2207.10688v2 |
2023-09-05 | Dynamics of anisotropic frustrated antiferromagnet Cs2CoBr4 in a spin-liquid regime | Cs2CoBr4 is a triangular-lattice antiferromagnet which can be viewed as
weakly interacting spin chains due to spatially anisotropic frustrating
exchange couplings. The spin-orbit interaction in Co(2+) spin-3/2 ions leads to
a strong easy-plane single-ion anisotropy which allows to consider the
low-energy spin dynamics ... | 2309.02266v1 |
2023-10-24 | Measuring nuclear spin qubits by qudit-enhanced spectroscopy in Silicon Carbide | Nuclear spins with hyperfine coupling to single electron spins are highly
valuable quantum bits. In this work we probe and characterise the particularly
rich nuclear spin environment around single silicon vacancy color-centers (V2)
in 4H-SiC. By using the electron spin-3/2 qudit as a 4 level sensor, we
identify several... | 2310.15557v1 |
2015-12-05 | Kinetic theory of spin-polarized systems in electric and magnetic fields with spin-orbit coupling: II. RPA response functions and collective modes | The spin and density response functions in the random phase approximation
(RPA) are derived by linearizing the kinetic equation including a magnetic
field, the spin-orbit coupling, and mean fields with respect to an external
electric field. Different polarization functions appear describing various
precession motions s... | 1512.01661v1 |
2013-01-15 | Travelling Wave Magnetic Resonance Imaging at 3 Tesla | Waveguides have been successfully used to generate magnetic resonance images
at 7 T with whole-body systems. The bore limits the magnetic resonance signal
transmitted because its specific cut-off frequency is greater than the majority
of resonant frequencies. This restriction can be overcome by using a
parallel-plate w... | 1301.3426v1 |
2003-04-17 | Field-Induced Spin-Density-Wave Phases in Quasi-One-Dimensional Conductors: Theory versus Experiment | We show that "Quantizied Nesting" model misses important features of the
magnetic field-induced spin-density-wave (FISDW) phase diagram. Among them are:
1) the FISDW wave vector is not strictly quantized; 2) in some compounds, the
FISDW diagram consists of two regions: a) at low temperatures, there are jumps
of the wav... | 0304406v1 |
2005-10-31 | Coexistence of double-Q spin density wave and multi-Q pair density wave in cuprate oxide superconductors | Spatial 4a x 4a modulations, with a the lattice constant of CuO_2 planes, or
the so called checkerboards can arise from double-Q spin density wave (SDW)
with Q_1 = (pm pi/a, pm 3 pi/4a) and Q_2 = (pm 3 pi/4a, pm pi/a). When multi-Q
pair density wave, that is, the condensation of d gamma-wave Cooper pairs with
zero tota... | 0510829v1 |
2017-01-05 | Wave Packet Dynamics in the Majorana Equation | In the Majorana equation for particles with arbitrary spin, wave packets
occur due to not only the uncertainty that affects position and momentum but
also due to infinite components with decreasing mass that form the Majorana
spinor. In this paper, we prove that such components contribute to increase the
spreading of w... | 1701.03012v1 |
2004-02-26 | Superslow Self-Organized Motions in a Multimode Microwave Phonon Laser (Phaser) under Resonant Destabilization of Stationary Acoustic Stimulated Emission | Two qualitatively different kinds of resonant destabilization of phonon
stimulated emission (SE) are experimentally revealed for periodically forced
multimode ruby phaser (phonon laser) operating at SE frequencies about 9 GHz,
i.e. at microwave acoustic wavelengths of 1 micron. The inversion state of
Cromium(3+) spin-s... | 0402640v1 |
2016-12-22 | Frequency control and coherent excitation transfer in a nanostring resonator network | Coupling, synchronization, and non-linear dynamics of resonator modes are
omnipresent in nature and highly relevant for a multitude of applications
ranging from lasers to Josephson arrays and spin torque oscillators.
Nanomechanical resonators are ideal candidates to study these effects on a
fundamental level and to rea... | 1612.07511v1 |
2008-02-21 | Liquid Density Sensing Using Resonant Flexural Plate Wave Device with Sol-Gel PZT Thin Films | This paper presents the design, fabrication and preliminary experimental
results of a flexure plate wave (FPW) resonator using sol-gel derived lead
zirconate titanates (PZT) thin films. The resonator adopts a two-port structure
with reflecting grates on the composite membrane of PZT and SiNx. The design of
the reflecti... | 0802.3043v1 |
2010-05-03 | $ρN$ resonance dynamics in the proton nucleus reaction | The strong coupling of rho meson to the nucleon produces $s$ and $p$ wave rho
meson nucleon $(\rho N)$ resonances. In a nucleus, the $\rho N$ resonance-hole
polarization generates the optical potential or self-energy for the rho meson.
The scattering of rho meson due to this potential provides valuable
informations abo... | 1005.0187v2 |
2014-09-17 | Nonhermitian transport effects in coupled-resonator optical waveguides | Coupled-resonator optical waveguides (CROWs) are known to have interesting
and useful dispersion properties. Here, we study the transport in these
waveguides in the general case where each resonator is open and asymmetric,
i.e., is leaky and possesses no mirror-reflection symmetry. Each individual
resonator then exhibi... | 1409.5037v1 |
2017-07-04 | Tuning of bound states in the continuum by waveguide rotation | We consider acoustic wave transmission in non axisymmetric waveguide which
consists of cylindrical resonator and two semi-infinite cylindrical waveguides
whose axes are shifted relative to the resonator axis and each other by
azimuthal angle $\Delta\phi$. We show that for rotation of one of attached
waveguides the coup... | 1707.00864v1 |
2017-12-12 | Topological interface modes in local resonant acoustic systems | Topological phononic crystals (PCs) are periodic artificial structures which
can support nontrivial acoustic topological bands, and their topological
properties are linked to the existence of topological edge modes. Most previous
studies focused on the topological edge modes in Bragg gaps which are induced
by lattice s... | 1712.04252v1 |
2019-11-09 | Perturbation theories for symmetry-protected bound states in the continuum on two-dimensional periodic structures | On dielectric periodic structures with a reflection symmetry in a periodic
direction, there can be antisymmetric standing waves (ASWs) that are
symmetry-protected bound states in the continuum (BICs). The BICs have found
many applications, mainly because they give rise to resonant modes of extremely
large quality-facto... | 1911.03612v1 |
2018-10-15 | Ridge Resonance: A new Resonance Phenomenon for Silicon Photonics Harnessing Bound States in the Continuum | We present a new resonant behavior based on bound states in the continuum in
a guided wave silicon platform. The continuum has the form of a collimated beam
of light which is confined vertically in a TE mode of a silicon slab. The bound
state is a discrete TM mode of a ridge on the silicon slab. The coupling
between th... | 1810.06734v3 |
2018-12-19 | Coherent interplay between surface acoustic waves and coupled mechanical resonators: transition from plasmon-like to surface mediated coupling | Manipulation of mechanical motion at the micro-scale has been attracting
continuous attention, leading to the successful implementation of various
strategies with potential impact on classical and quantum information
processing. We here propose an approach based on the interplay between a pair
of localized mechanical r... | 1812.07952v2 |
2020-08-24 | Chromospheric resonances above sunspots and potential seismological applications | Oscillations in sunspot umbrae exhibit remarkable differences between the
photosphere and chromosphere. We evaluate two competing scenarios proposed for
explaining those observations: a chromospheric resonant cavity and waves
traveling from the photosphere to upper atmospheric layers. We have employed
numerical simulat... | 2008.10623v1 |
2008-06-17 | Resonance enhancement of magnetic Faraday rotation | Magnetic Faraday rotation is widely used in optics. In natural transparent
materials, this effect is very weak. One way to enhance it is to incorporate
the magnetic material into a periodic layered structure displaying a high-Q
resonance. One problem with such magneto-optical resonators is that a
significant enhancemen... | 0806.2884v1 |
2019-04-30 | On the convergence of the normal form transformation in discrete Rossby and drift wave turbulence | We study numerically the region of convergence of the normal form
transformation for the case of the Charney-Hasagawa-Mima (CHM) equation to
investigate whether certain finite amplitude effects can be described in normal
coordinates. We do this by taking a Galerkin truncation of four Fourier modes
making part of two tr... | 1904.13272v1 |
2019-12-03 | Multi-reflection model of subwavelength grating diffraction based on simplified modal method | A multi-reflection model of grating diffraction based on the simplified modal
method is proposed. Simulation results for a guided mode resonance Brewster
grating using our method and rigorous coupled wave analysis are presented to
verify our model. The solution of our method is in good agreement with that of
rigorous c... | 1912.01226v1 |
2020-06-30 | $ΛΛN$-$ΞNN$ $S$ wave resonance | We use an existing model of the $\Lambda\Lambda N - \Xi NN$ three-body system
based in two-body separable interactions to study the $(I,J^P)=(1/2,1/2^+)$
three-body channel. For the $\Lambda\Lambda$, $\Xi N$, and $\Lambda\Lambda -
\Xi N$ amplitudes we have constructed separable potentials based on the most
recent resul... | 2006.16567v1 |
2021-03-08 | Fine structure of second-harmonic resonances in χ^{(2)} optical microresonators | Owing to the discrete frequency spectrum of whispering gallery resonators
(WGRs), the resonance and phase-matching conditions for the interacting waves
in the case of second-harmonic generation (SHG) cannot generally be fulfilled
simultaneously. To account for this, we develop a model describing SHG in WGRs
with non-ze... | 2103.04926v1 |
2021-03-23 | Bound states in the continuum and Fano resonances in subwavelength resonator arrays | When wave scattering systems are subject to certain symmetries, resonant
states may decouple from the far-field continuum; they remain localized to the
structure and cannot be excited by incident waves from the far field. In this
work, we use layer-potential techniques to prove the existence of such states,
known as bo... | 2103.12470v1 |
2021-05-12 | Fano interference in quantum resonances from angle-resolved elastic scattering | Asymmetric spectral line shapes are a hallmark of interference of a
quasi-bound state with a continuum of states. Such line shapes are well known
for multichannel systems, for example, in photoionization or Feshbach
resonances in molecular scattering. On the other hand, in resonant single
channel scattering, the signat... | 2105.05959v2 |
2021-06-29 | What is the resonant state in open quantum systems? | The article reviews the theory of open quantum system from a perspective of
the non-Hermiticity that emerges from the environment with an infinite number
of degrees of freedom. The non-Hermiticity produces resonant states with
complex eigenvalues, resulting in peak structures in scattering amplitudes and
transport coef... | 2106.15068v1 |
2021-12-13 | Effect of interfacial damping on high-frequency surface wave resonance on a nanostrip-bonded substrate | Since surface acoustic waves (SAW) are often generated on substrates to which
nanostrips are periodically attached, it is very important to consider the
effect of interface between the deposited strip and the substrate surface,
which is an unavoidable issue in manufacturing. In this paper, we propose a
theoretical mode... | 2112.06367v1 |
2022-08-29 | Resonant Kushi-comb-like multi-frequency radiation of oscillating two-color soliton molecules | Nonlinear waveguides with two distinct domains of anomalous dispersion can
support the formation of molecule-like two-color pulse compounds. They consist
of two tightly bound subpulses with frequency loci separated by a vast
frequency gap. Perturbing such a two-color pulse compound triggers periodic
amplitude and width... | 2208.13829v1 |
2023-10-25 | Kerr-Nonlinearity Assisted Exceptional Point Degeneracy in a Detuned PT-Symmetric System | Systems operating at exceptional points (EPs) are highly responsive to small
perturbations, making them suitable for sensing applications. Although this
feature impedes the system working exactly at an EP due to imperfections
arising during the fabrication process. We propose a fast self-tuning scheme
based on Kerr non... | 2310.16259v2 |
2023-12-07 | Simulations of Non-Integer Upconversion in Resonant Six-Wave Scattering | Resonant upconversion through a sixth order relativistic nonlinearity
resulting in a unique resonance was recently proposed [V. M. Malkin and N. J.
Fisch, Physical Review E 108, 045208 (2023)]. The high order resonance is a
unique non-integer multiple of a driving pump frequency resulting in a
frequency upshift by a fa... | 2312.04699v1 |
1999-11-26 | Acoustic Cyclotron Resonance and Giant High Frequency Magnetoacoustic Oscillations in Metals with Locally Flattened Fermi Surface | We consider the effect of local flattening on the Fermi surface (FS) of a
metal upon geometric oscillations of the velocity and attenuation of ultrasonic
waves in the neighborhood of the acoustic cyclotron resonance. It is shown that
such peculiarities of the local geometry of the FS can lead to a significant
enhanceme... | 9911440v2 |
2000-01-03 | Signature of Dynamical Localization in the Lifetime Distribution of Wave-Chaotic Dielectric Resonators | We consider the effect of dynamical localization on the lifetimes of the
resonances in open wave-chaotic dielectric cavities. We show that dynamical
localization leads to a log-normal distribution of the resonance lifetimes
which scales with the localization length in excellent agreement with the
results of numerical c... | 0001017v1 |
2004-12-14 | Nonlinear Fano resonance and bistable wave transmission | We consider a discrete model that describes a linear chain of particles
coupled to a single-site defect with instantaneous Kerr nonlinearity. We show
that this model can be regarded as a nonlinear generalization of the familiar
Fano-Anderson model, and it can generate the amplitude depended bistable
resonant transmissi... | 0412341v1 |
2005-09-12 | Backward-wave regime and negative refraction in chiral composites | Possibilities to realize a negative refraction in chiral composites in in
dual-phase mixtures of chiral and dipole particles is studied. It is shown that
because of strong resonant interaction between chiral particles (helixes) and
dipoles, there is a stop band in the frequency area where the backward-wave
regime is ex... | 0509287v1 |
1999-11-15 | Resonant Spheres: Multifrequency Detectors of Gravitational Waves | We discuss the capabilities of spherical antenn\ae as single multifrequency
detectors of gravitational waves. A first order theory allows us to evaluate
the coupled spectrum and the resonators readouts when the first and the second
quadrupole bare sphere frequencies are simultaneously selected for layout
tuning. We str... | 9911056v1 |
2004-12-16 | Pentaquark Resonances from Collision Times | Having successfully explored the existing relations between the S-matrix and
collision times in scattering reactions to study the conventional baryon and
meson resonances, the method is now extended to the exotic sector. To be
specific, the collision time in various partial waves of K+ N elastic
scattering is evaluated... | 0412240v1 |
2004-08-02 | Conservation of resonant periodic solutions for the one-dimensional nonlinear Schroedinger equation | We consider the one-dimensional nonlinear Schr\"odinger equation with
Dirichlet boundary conditions in the fully resonant case (absence of the
zero-mass term). We investigate conservation of small amplitude
periodic-solutions for a large set measure of frequencies. In particular we
show that there are infinitely many p... | 0408017v1 |
2003-01-18 | Statistical properties of resonance widths for open Quantum Graphs | We connect quantum compact graphs with infinite leads, and turn them into
scattering systems. We derive an exact expression for the scattering matrix,
and explain how it is related to the spectrum of the corresponding closed
graph. The resulting expressions allow us to get a clear understanding of the
phenomenon of res... | 0301021v1 |
1998-08-24 | Solitary Waves on a Coasting High-Energy Stored Beam | In this work we derive evolution equations for the nonlinear behavior of a
coasting beam under the influence of a resonator impedance. Using a
renormalization group approach we find a set of coupled nonlinear equations for
the beam density and the resonator voltage. Under certain conditions, these may
be analytically s... | 9808032v1 |
1999-09-21 | Qualitative analysis of low-lying resonances of the dipositronium emerging from Ps-Ps and Ps-Ps* collisions | An analysis of the channel wave functions is made to clarify the types of
resonance emerging from Ps-Ps and Ps-Ps* collisions. The ordering of the energy
levels of the states of the dipositronium is evaluated based on the inherent
nodal structures of wave functions and on existing theoretical results. A few
very probab... | 9909041v1 |
2003-04-17 | Efficient photon counting and single-photon generation using resonant nonlinear optics | The behavior of an atomic double lambda system in the presence of a strong
off-resonant classical field and a few-photon resonant quantum field is
examined. It is shown that the system possesses properties that allow a
single-photon state to be distilled from a multi-photon input wave packet. In
addition, the system is... | 0304121v1 |
2004-09-01 | "Paradoxical" coexistence of continuum of 'bound' waves and discrete set of unlimited motion states | We have combined two remarkable phenomena: resonance tunneling and Anderson
localization. It results in unexpected spectrum reverse to usual notions. It is
demonstrated by the quantum system with chaotic distribution of potential
resonance tunneling traps over the whole coordinate axis. The corresponding
spectrum conta... | 0409004v1 |
2008-08-26 | Pattern selection in parametrically-driven arrays of nonlinear resonators | We study the problem of pattern selection in an array of
parametrically-driven nonlinear resonators with application to
microelectromechanical and nanoelectromechanical systems (MEMS & NEMS), using
an amplitude equation recently derived by Bromberg, Cross, and Lifshitz [PRE
73, 016214 (2006)]. We describe the transitio... | 0808.3589v1 |
2009-02-24 | Optical potentials using resonance states in Supersymmetric Quantum Mechanics | Complex potentials are constructed as Darboux-deformations of short range,
radial nonsingular potentials. They behave as optical devices which both
refracts and absorbs light waves. The deformation preserves the initial
spectrum of energies and it is implemented by means of a Gamow-Siegert function
(resonance state). A... | 0902.4052v1 |
2009-05-08 | Variational study of the neutron resonance mode in the cuprate superconductors | A Gutzwiller-type variational wave function is proposed for the neutron
resonance mode in the cuprate superconductors. An efficient re-weighting
technique is devised to perform variational Monte Carlo simulation on the
proposed wave function which is composed of linearly superposed Gutzwiller
projected Slater determina... | 0905.1232v1 |
2009-09-07 | Disentangling the dynamical origin of P11 Nucleon Resonances | We show that two almost degenerate poles near the $\pi\Delta$ threshold and
the next higher mass pole in the $P_{11}$ partial wave of $\pi N$ scattering
evolve from a single bare state through its coupling with $\pi N$, $\eta N$ and
$\pi\pi N$ reaction channels. This finding provides new information on
understanding th... | 0909.1356v2 |
2010-04-16 | Resonance wave functions located at the Stark saddle point | We calculate quantum mechanically exact wave functions of resonances in
spectra of the hydrogen atom in crossed external fields and prove the existence
of long-lived decaying quantum states localized at the Stark saddle point. A
spectrum of ground and excited states reproducing the nodal patterns expected
from simple q... | 1004.2876v2 |
2011-07-28 | Enhanced four-wave mixing via crossover resonance in cesium vapor | We report on the observation of enhanced four-wave mixing via crossover
resonance in a Doppler broadened cesium vapor. Using a single laser frequency,
a resonant parametric process in a double-$\Lambda$ level configuration is
directly excited for a specific velocity class. We investigate this process in
different satur... | 1107.5768v1 |
2011-09-23 | Restoring of optical resonances in subwavelength hyperbolic etalons | We give a solution to the fundamental problem of restoring optical resonances
in deep subwavelength structures by resorting to indefinite metamaterials. We
prove that a nanometric thick hyperbolic slab with very small permittivities
exhibits etalon resonances and provides high-contrast optical angular
filtering. This i... | 1109.5101v1 |
2011-11-17 | Resonance instability of axially-symmetric magnetostatic equilibria | We review the evidence for and against the possibility that a strong enough
poloidal field stabilizes an axisymmetric magnetostatic field configuration. We
show that there does exist a class of resonant MHD waves which produce
instability for any value of the ratio of poloidal and toroidal field strength.
We argue that... | 1111.4040v2 |
2012-01-04 | Propagation characteristics of complementary split-ring resonators excited by internal cylindrical wave | For a complementary split-ring resonators (CSRRs) etched on one screen of two
infinite and perfectly conducting plates under cylindrical plane wave
illumination, the transmission coefficients analysis were performed through
finite-difference time-domain simulations. For the single slot ring CSRR, two
transmission dips ... | 1201.1254v2 |
2012-03-21 | Sharp tunneling peaks in a parametric oscillator: quantum resonances missing in the rotating wave approximation | We describe a new mechanism of tunneling between period-two vibrational
states of a weakly nonlinear parametrically modulated oscillator. The tunneling
results from resonant transitions induced by the fast oscillating terms
conventionally disregarded in the rotating wave approximation (RWA). The
tunneling amplitude dis... | 1203.4803v1 |
2012-08-13 | Multichannel parametrization of πN scattering amplitudes and extraction of resonance parameters | We present results of a new multichannel partial-wave analysis for \pi N
scattering in the c.m. energy range 1080 to 2100 MeV. This work explicitly
includes \eta N and K \Lambda channels and the single pion photoproduction
channel. Resonance parameters were extracted by fitting partial-wave amplitudes
from all consider... | 1208.2710v2 |
2013-05-20 | Multichannel parametrization of $\bar K N$ scattering amplitudes and extraction of resonance parameters | We present results of a new multichannel partial-wave analysis for $\bar K N$
scattering in the c.m.\ energy range 1480 to 2100 MeV. Resonance parameters
were extracted by fitting partial-wave amplitudes from all considered channels
using a multichannel parametrization that is consistent with $S$-matrix
unitarity. The ... | 1305.4575v2 |
2013-09-25 | Self-organization, Pattern Formation, Cavity Solitons and Rogue Waves in Singly Resonant Optical Parametric Oscillators | Spatio-temporal dynamics of singly resonant optical parametric oscillators
with external seeding displays hexagonal, roll and honeycomb patterns, optical
turbulence, rogue waves and cavity solitons. We derive appropriate mean-field
equations with a sinc$^2$ nonlinearity and demonstrate that off-resonance
seeding is nec... | 1309.6543v1 |
2014-01-05 | Optical Rogue Waves in Whispering-Gallery-Mode Resonators | We report a theoretical study showing that rogue waves can emerge in
whispering gallery mode resonators as the result of the chaotic interplay
between Kerr nonlinearity and anomalous group-velocity dispersion. The
nonlinear dynamics of the propagation of light in a whispering gallery-mode
resonator is investigated usin... | 1401.0924v1 |
2014-01-18 | Semitransparent One Dimensional Potential, A Green's Function Approach | We study the unstable harmonic oscillator and the unstable linear potential
in the presence of the point potential, which is the superposition of the Dirac
$\delta(x)$ and the derivative $\delta'(x)$. Using the \textit{physical}
boundary conditions for the Green's function we derive for both systems the
resonance poles... | 1401.4588v2 |
2014-03-22 | Poisson wave trace formula for perturbed Dirac operators | We consider self-adjoint Dirac operators $\ham{D}=\ham{D}_0 + V(x)$, where
$\ham{D}_0$ is the free three-dimensional Dirac operator and $V(x)$ is a smooth
compactly supported Hermitian matrix. We define resonances of $\ham{D}$ as
poles of the meromorphic continuation of its cut-off resolvent. An upper bound
on the numb... | 1403.5654v1 |
2014-04-13 | Stable radiating gap solitons and their resonant interactions with dispersive waves in systems with parametric pump | We study the formation of gap solitons in the presence of parametric pump. It
is shown that parametric pump can stabilize stationary solitons continuously
emitting dispersive waves. The resonant interactions of the radiation and the
solitons are studied and it is shown that the solitons can be effectively
controlled by... | 1404.3432v1 |
2014-11-11 | Giant non-equilibrium vacuum friction: Role of singular evanescent wave resonances in moving media | We recently reported on the existence of a singular resonance in moving media
which arises due to perfect amplitude and phase balance of evanescent waves. We
show here that the non-equilibrium vacuum friction (lateral Casimir-Lifshitz
force) between moving plates separated by a finite gap is fundamentally
dominated by ... | 1411.2737v1 |
2015-01-23 | Time-bin entangled photon pair generation from Si micro-ring resonator | We demonstrate time-bin entanglement generation in telecom wavelength using a
7 {\mu}m radius Si micro-ring resonator pumped by a continuous wave laser. The
resonator structure can enhance spontaneous four wave mixing, leading to a
photon pair generation rate of about 90-100 Hz with a laser pump power of as
low as -3.9... | 1501.05687v1 |
2015-01-28 | Optical resonators based on Bloch surface waves | A few recent works suggest the possibility of controlling light propagation
at the interface of periodic multilayers supporting Bloch surface waves (BSWs),
but optical resonators based on BSWs are yet to demonstrate. Here we discuss
the feasibility of exploiting guided BSWs in a ring resonator configuration. In
particu... | 1501.07025v1 |
2015-03-12 | Scalar Resonances in Axially Symmetric Spacetimes | We study properties of resonant solutions to the scalar wave equation in
several axially symmetric spacetimes. We prove that non-axial resonant modes do
not exist neither in the Lanczos dust cylinder, the $(2+1)$ extreme BTZ
spacetime nor in a class of simple rotating wormhole solutions. Moreover, we
find unstable solu... | 1503.03755v1 |
2018-11-05 | Surface acoustic wave coupled to magnetic resonance on a multiferroic CuB$_2$O$_4$ | We observed surface acoustic wave (SAW) propagation on a multiferroic
material CuB$_2$O$_4$ with use of two interdigital transducers (IDTs). The
period of IDT fingers is as short as 1.6 $\mu$m so that the frequency of SAW is
3 GHz, which is comparable with that of magnetic resonance. In
antiferromagnetic phase, the SAW... | 1811.01527v1 |
2016-03-13 | Minnaert resonances for acoustic waves in bubbly media | Through the application of layer potential techniques and Gohberg-Sigal
theory we derive an original formula for the Minnaert resonance frequencies of
arbitrarily shaped bubbles. We also provide a mathematical justification for
the monopole approximation of scattering of acoustic waves by bubbles at their
Minnaert reso... | 1603.03982v1 |
2018-04-16 | Analysis of surface polariton resonance for nanoparticles in elastic system | This paper is concerned with the analysis of surface polariton resonance for
nanoparticles in linear elasticity. With the presence of nanoparticles, we
first derive the perturbed displacement field associated to a given elastic
source field. It is shown that the leading-order term of the perturbed elastic
wave field is... | 1804.05480v1 |
2008-06-17 | Input Impedance and Gain of a Gigahertz Amplifier Using a DC SQUID in a Quarter Wave Resonator | Due to their superior noise performance, SQUIDs are an attractive alternative
to high electron mobility transistors for constructing ultra-low-noise
microwave amplifiers for cryogenic use. We describe the use of a lumped element
SQUID inductively coupled to a quarter wave resonator. The resonator acts as an
impedance t... | 0806.2853v1 |
2020-02-02 | Resonant amplified seismic response within a hill or mountain | We show theoretically what is meant by the term '(surface shape) resonance'
in connection with the seismic response of a protuberance (emerging from flat
ground) such as a hill or mountain of arbitrary shape. We address the specific
problem of cylindrical protuberances of rectangular shape submitted to a SH
plane wave.... | 2002.00389v1 |
2020-07-21 | A Hybrid (Al)GaAs-LiNbO$_3$ Surface Acoustic Wave Resonator for Cavity Quantum Dot Optomechanics | A hybrid device comprising a (Al)GaAs quantum dot heterostructure and a
LiNbO$_3$ surface acoustic wave resonator is fabricated by heterointegration.
High acoustic quality factors $Q>4000$ are demonstrated for an operation
frequency $f\approx 300$ MHz. The measured large quality factor-frequency
products $Q\times f>10^... | 2007.11082v2 |
2022-01-24 | Scattering For three waves Nonlinear Schrödinger System with mass-resonance in 5D | In this paper, we study the dynamics behavior of the NLS system with three
waves interaction in the energy space $H^1(\mathbb{R}^5) \times
H^1(\mathbb{R}^5)\times H^1(\mathbb{R}^5) $. Inspired by B. Dodson and J.
Murphy in \cite{Dodson2018}, we establish an interaction Morawetz estimate for
the NLS system, together wit... | 2201.09408v1 |
2022-09-12 | Minimally-diffracting quartz for ultra-low temperature surface acoustic wave resonators | We simulate and experimentally demonstrate the existence of an orientation of
quartz which minimizes diffraction losses in surface acoustic wave (SAW)
resonators at ultra-low temperatures. The orientation is optimized for
applications to quantum technologies which benefit from high mechanical quality
factors, strong el... | 2209.05501v1 |
2023-07-08 | Coupling high-overtone bulk acoustic wave resonators via superconducting qubits | In this work, we present a device consisting of two coupled transmon qubits,
each of which are coupled to an independent high-overtone bulk acoustic wave
resonator (HBAR). Both HBAR resonators support a plethora of acoustic modes,
which can couple to the qubit near resonantly. We first show qubit-qubit
interaction in t... | 2307.05544v1 |
2023-08-03 | Complete mode conversion for elastic waves reflected by elastic metamaterial slab with double hexapole resonances | In this study, we investigate the phenomenon of mode conversion in elastic
bulk waves using coupled hexapole resonances. A metamaterial slab is proposed
enabling the complete conversion between longitudinal and transverse modes.
Each unit of the elastic metamaterial slab comprises a pair of scatterers, and
their relati... | 2308.01969v1 |
2023-10-07 | Wave scattering by objects made of small particles with pulsating permittivity | In this work we study the wave scattering by small dispersionless particles
with pulsating refractive index. The scattered fields and their resonance
frequencies are calculated by using scalar approximation and exponentially
time-dependent permittivity.
In addition, the scattering by single sphere with the pulsating ... | 2310.04798v2 |
2023-12-21 | Scattering results for the (1+4) dimensional massive Maxwell-Dirac system under Lorenz gauge condition | This paper investigates the \emph{massive} Maxwell-Dirac system under the
Lorenz gauge condition in (4+1) dimensional Minkowski space. The focus is on
establishing global existence and scattering results for small solutions on the
weighted Sobolev class. The imposition of the Lorenz gauge condition transforms
the Maxwe... | 2312.13621v1 |
2014-03-24 | Spin wave imaging in atomically designed nanomagnets | The spin dynamics of all ferromagnetic materials are governed by two types of
collective excitations: spin waves and domain walls. The fundamental processes
underlying these collective modes, such as exchange interactions and magnetic
anisotropy, all originate at the atomic scale; yet, conventional probing
techniques, ... | 1403.5890v1 |
2022-10-19 | Improving the spin-down limits of the continuous gravitational waves emitted from rotating triaxial pulsars | The spin-down limit of the continuous gravitational wave strain from pulsars
assumed to be triaxial stars rotating about a principal moment of inertia axis
depends upon the value of the intrinsic spin frequency derivative of the
pulsar, among other parameters. In order to get more accurate intrinsic spin
frequency deri... | 2210.10355v2 |
2022-08-29 | On Tsunami Waves induced by Atmospheric Pressure Shock Waves after the 2022 Hunga Tonga-Hunga Ha'apai Volcano Eruption | Employing a linear shallow water equation (LSWE) model in the spherical
coordinates, this paper investigates the tsunami waves generated by the
atmospheric pressure shock waves due to the explosion of the submarine volcano
Hunga Tonga-Hunga Ha'apai on January 15, 2022. Using the selected 59
atmospheric pressure records... | 2208.13473v1 |
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