publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
|---|---|---|---|
2006-08-22 | Fabrication of alignment structures for a fiber resonator by use of deep-ultraviolet lithography | We present a novel method to mount and align an optical-fiber-based resonator
on the flat surface of an atom chip with ultrahigh precision. The structures
for mounting a pair of fibers, which constitute the fiber resonator, are
produced by a spin-coated SU-8 photoresist technique by use of deep-UV
lithography. The desi... | 0608216v1 |
2008-03-12 | Analysis of angular distributions in gamma N \to pi0 eta N | Angular distributions in the final state of pi0-eta photoproduction on
nucleons are considered. As a formal base the familiar isobar model is used in
which the (pi0 eta N) state is a product of the resonance decay into
eta-Delta(1232) and pi-S_{11}(1535) channels. One of the principal assumptions
used is that in the ac... | 0803.1755v1 |
2008-03-20 | Exotic decay modes of the nucleon resonance $N^*(1535)$ and the $θ^+$ problem | Baryon resonance state with strangeness $S = +1$ observed in systems $p K^0$
and $n K^+$ is interpreted as a result of the decay $N^{*+} \to p \eta$ of the
well-known resonance $N^*(1535)$ (with spin-parity $j^P = {1/2}^-$ and mass $m
\approx 1.54$ GeV) and the subsequent oscillation $\eta \rightleftarrows K^0$.
It is ... | 0803.2936v1 |
2008-07-15 | Excited-state spectroscopy of single NV defects in diamond using optically detected magnetic resonance | Using pulsed optically detected magnetic resonance techniques, we directly
probe electron-spin resonance transitions in the excited-state of single
Nitrogen-Vacancy color centers in diamond. Unambiguous assignment of excited
state fine structure is made, based on changes of NV defect photoluminescence
lifetime. This st... | 0807.2379v2 |
2008-10-27 | Alternating current driven instability in magnetic junctions | An effect is considered of alternating (high-frequency) current on the
spin-valve type magnetic junction configuration. The stability with respect to
small fluctuations is investigated in the macrospin approximation. When the
current frequency is close to the eigenfrequency (precession frequency) of the
free layer, par... | 0810.4753v1 |
2009-06-22 | Kondo resonance narrowing in d- and f-electron systems | By developing a simple scaling theory for the effect of Hund's interactions
on the Kondo effect, we show how an exponential narrowing of the Kondo
resonance develops in magnetic ions with large Hund's interaction. Our theory
predicts an exponential reduction of the Kondo temperature with spin S of the
Hund's coupled mo... | 0906.4107v1 |
2009-07-09 | A Tuneable Few Electron Triple Quantum Dot | In this paper we report on a tuneable few electron lateral triple quantum dot
design. The quantum dot potentials are arranged in series. The device is aimed
at studies of triple quantum dot properties where knowing the exact number of
electrons is important as well as quantum information applications involving
electron... | 0907.1322v1 |
2009-07-29 | Pinning mode resonance of a Skyrme crystal near Landau level filling factor $ν$=1 | Microwave pinning-mode resonances found around integer quantum Hall effects,
are a signature of crystallized quasiparticles or holes. Application of
in-plane magnetic field to these crystals, increasing the Zeeman energy, has
negligible effect on the resonances just below Landau level filling $\nu=2$,
but increases the... | 0907.5218v1 |
2010-02-26 | Controlled generation of field squeezing with cold atomic clouds coupled to a superconducting transmission line resonator | We propose an efficient method for controlled generation of field squeezing
with cold atomic clouds trapped close to a superconducting transmission line
resonator. It is shown that, based on the coherent strong magnetic coupling
between the collective atomic spins and microwave fields in the transmission
line resonator... | 1002.4953v1 |
2010-06-05 | Molecular structure of highly-excited resonant states in $^{24}$Mg and the corresponding $^8$Be+$^{16}$O and $^{12}$C+$^{12}$C decays | Exotic $^8$Be and $^{12}$C decays from high-lying resonances in $^{24}$Mg are
analyzed in terms of a cluster model. The calculated quantities agree well with
the corresponding experimental data. It is found that the calculated decay
widths are very sensitive to the angular momentum carried by the outgoing
cluster. It i... | 1006.1071v1 |
2010-07-06 | Extraction of the resonance parameters at finite times | In this paper we propose a model-independent method to extract the resonance
parameters on the lattice directly from the Euclidean 2-point correlation
functions of the field operators at finite times. The method is tested in case
of the two-point function of the Delta-resonance, calculated at one loop in
Small Scale Ex... | 1007.0860v1 |
2011-05-06 | Radio frequency readout of electrically detected magnetic resonance in phosphorus-doped silicon MOSFETs | We demonstrate radio frequency (RF) readout of electrically detected magnetic
resonance in phosphorus-doped silicon metal-oxide field-effecttransistors
(MOSFETs), operated at liquid helium temperatures. For the first time, the Si:P
hyperfine lines have been observed using radio frequency reflectometry, which
is promisi... | 1105.1235v1 |
2012-03-01 | Current-induced resonance in a ferromagnet - antiferromagnet junction | We calculate the response of a ferromagnet - antiferromagnet junction to a
high-frequency magnetic field as a function of the spin-polarized current
through the junction. Conditions are choused under which the response is zero
in absence of such a current. It is shown that increasing in the current
density leads to pro... | 1203.0114v1 |
2012-05-24 | Resonances in 28Si+28Si. I | A molecular model developed for resonances observed in medium light heavy-ion
collisions is described. At high spins in 28Si+28Si (oblate-oblate system), a
stable dinuclear configuration is found to be equator-equator touching one. The
normal modes around the equilibrium are investigated. These modes are expected
to be... | 1205.5490v1 |
2013-05-23 | Composite or elementary? Probing the nature of the Higgs | I discuss consequences of electroweak symmetry breaking by strong dynamics,
assuming the existence of a light composite scalar appearing as a
pseudo-Goldstone boson of some global symmetry of the new strongly interacting
sector. In such a scenario, the composite scalar has properties very similar to
the Standard Model ... | 1305.5364v1 |
2013-08-01 | Field Theory of the d+t -> n+alpha Reaction Dominated by a 5He* Unstable Particle | An effective, non-relativistic field theory for low-energy d+t -> n+alpha
reaction is presented. The theory assumes that the reaction is dominated by an
intermediate 5He* unstable spin 3/2+ resonance. It involves two parameters in
the coupling of the d+t and n+alpha particles to the unstable resonant state,
and the res... | 1308.0347v1 |
2013-12-21 | Probing the localization length of photo-generated charges in organic materials | We report a new experimental method to measure the localization length of
photo-generated carriers in an organic donor-acceptor photovoltaic blend by
comparing their dielectric and electron spin-resonance susceptibilities which
are simultaneously measured by monitoring the resonance frequency of a
superconducting reson... | 1312.6245v1 |
2014-03-05 | Resonant detection of axion mediated forces with Nuclear Magnetic Resonance | We describe a method based on precision magnetometry that can extend the
search for axion-mediated spin-dependent forces by several orders of magnitude.
By combining techniques used in nuclear magnetic resonance and short-distance
tests of gravity, our approach can substantially improve upon current
experimental limits... | 1403.1290v1 |
2015-03-12 | Chirp spectroscopy applied to the characterization of Ferromagnetic Resonance in Magnetic Tunnel Junctions | Magnetic Tunnel Junction devices find use in several applications based on
the exploitation of the Spin-Transfer Torque phenomenon. The Ferromagnetic
Resonance curve is a key characteristic of any Magnetic Tunnel Junctions. It is
usually characterized both experimentally and numerically by performing a lot
of measureme... | 1503.03719v1 |
2015-07-16 | Antiferromagentic resonance detected by DC voltages in MnF$_2$/Pt bilayers | We performed coplanar waveguide-based broadband ferromagnetic resonance
experiments on the antiferromagnetic insulator MnF$_2$, while simultaneously
recording the DC voltage arising in a thin platinum film deposited onto the
MnF$_2$. The antiferromagnetic resonance is clearly reflected in both the
transmission through ... | 1507.04490v1 |
2016-01-23 | Nonlinear magnetization dynamics of antiferromagnetic spin resonance induced by intense terahertz magnetic field | We report on the nonlinear magnetization dynamics of a HoFeO3 crystal induced
by a strong terahertz magnetic field resonantly enhanced with a split ring
resonator and measured with magneto-optical Kerr effect microscopy. The
terahertz magnetic field induces a large change (~40%) in the spontaneous
magnetization. The fr... | 1601.06213v1 |
2016-04-21 | Interaction of two magnetic resonance modes in polar phase of superfluid 3He | We report results of low frequency nuclear magnetic resonance (NMR)
experiments in the superfluid polar phase of 3He which is stabilized by a new
type of "nematic" aerogel - nafen. We have found that an interaction between
transverse and longitudinal NMR modes may essentially influence the spin
dynamics. Theoretical fo... | 1604.06233v1 |
2016-05-21 | Propagators of resonances and rescatterings of the decay products | Hadronic resonance propagators which take into account the analytical
properties of decay processes are built in terms of the dispersion relation
technique. Such propagators can describe multi-component systems, for example,
those when quark degrees of freedom create a resonance state, and decay
products correct the co... | 1605.06605v2 |
2016-06-30 | Numeric calculation of antiferromagnetic resonance frequencies for the noncollinear antiferromagnet | We present an algorithm for the numeric calculation of antiferromagnetic
resonance frequencies for the non-collinear antiferromagnets of general type.
This algorithm uses general exchange symmetry approach \cite{andrmar} and is
applicable for description of low-energy dynamics of an arbitrary noncollinear
spin structur... | 1606.09394v1 |
2016-09-28 | Resonant Enhancement of Second Harmonic Generation by Edge States in Transition Metal Dichalcogenide Monolayers | We derive a low-energy theory for edge states in transition metal
dichalcogenide monolayers for a two-band $\bm{kp}$-Hamiltonian in case of
uncoupled valleys. In the absence of spin-orbit interaction at the edge, these
states possess a linear dispersion described by a single phenomenological
parameter characterizing th... | 1609.08946v1 |
2017-11-10 | GenEx - Exclusive Meson Generator | Exclusive light meson production processes possible to be measured at RHIC
and LHC accelerators are briefly described. This includes Pomeron and photon
induced continuum of pions and kaons as well as $f_0$ and $\rho^0$ resonant
production. Next, GenEx, a new Monte Carlo generator recently developed in
Cracow, is presen... | 1711.03797v2 |
2018-06-05 | Resonant photoemission with circular polarized light on magnetized LSMO | We have used resonant photoemission with circular polarized light as a new
tool to obtain information about the electronic structure of half-metals. After
careful sample surface preparation of La0.7Sr0.3MnO3, we have obtained a
dichroic signal for the L2,3 absorption of Mn. Working with a magnetized sample
and circular... | 1806.01833v1 |
2018-09-24 | Superefficient cascade multiresonator quantum memory | We propose a cascade scheme of a superefficient broadband quantum memory
consisting of four high-Q ring resonators forming a controllable frequency comb
and interacting with long-lived spin systems and with a common waveguide. Using
the transfer function giving extended matching conditions, the optimization of
all spec... | 1809.08759v2 |
2017-02-13 | Resonant Generation of an Electron-Positron Pair by Two Photons to Excited Landau Levels | We consider the resonant generation of an electron-positron pair by two
polarized photons to arbitrarily low Landau levels. The resonance occurs when
the energy of one photon exceeds the one-photon generation threshold, and the
energy of the other photon is multiple to the spacing between the levels. The
cross section ... | 1702.03693v1 |
2008-06-09 | Quark-Model Identification of Baryon Ground and Resonant States | We present a new classification scheme of baryon ground states and resonances
into SU(3) flavor multiplets. The scheme is worked out along a covariant
formalism with relativistic constituent quark models and it relies on detailed
investigations of the baryon spectra, the spin-flavor structure of the baryon
eigenstates,... | 0806.1454v1 |
2016-11-22 | Photons Squeezing Model in a Nonlinear Micro-ring Resonator | Principally, there are two forms of coupling energy when particle(photon) is
moving around the micro-ring resonator, which is generated by the construction
(creation) and the destruction (annihilation) energies that can disturb the
centre nonlinear microring resonator and lead the system unstable from the
harmonic moti... | 1611.07520v3 |
2017-03-04 | Structure of 10N in 9C+p resonance scattering | The structure of exotic nucleus 10N was studied using 9C+p resonance
scattering. Two L=0 resonances were found to be the lowest states in 10N. The
ground state of 10N is unbound with respect to proton decay by 2.2(2) or 1.9(2)
MeV depending on the 2- or 1- spin-parity assignment, and the first excited
state is unbound ... | 1703.01366v1 |
2019-01-14 | Quantum simulation scheme of two-dimensional xy-model Hamiltonian with controllable coupling | We study a scheme of quantum simulator for two-dimensional xy-model
Hamiltonian. Previously the quantum simulator for a coupled cavity array spin
model has been explored, but the coupling strength is fixed by the system
parameters. In the present scheme several cavity resonators can be coupled with
each other simultane... | 1901.04350v1 |
2019-09-29 | Nonlinear Floquet dynamics of spinor condensates in an optical cavity: Cavity-amplified parametric resonance | We investigate Floquet dynamics of a cavity-spinor Bose-Einstein condensate
coupling system via periodic modulation of the cavity pump laser. Parametric
resonances are predicted and we show that due to cavity feedback-induced
nonlinearity the spin oscillation can be amplified to all orders of resonance,
thus facilitati... | 1909.13191v1 |
2021-01-07 | Microwave directional dichroism resonant with spin excitations in the polar ferromagnet GaV$_4$S$_8$ | We have investigated the directional dichroism of magnetic resonance spectra
in the polar ferromagnet GaV$_4$S$_8$. While four types of structural domains
are energetically degenerated under zero field, the magnetic resonance for each
domain is well separated by applying magnetic fields due to uniaxial magnetic
anisotr... | 2101.02411v1 |
2022-03-02 | Observation of microcavity fine structure | We observe fine structure in the resonance spectra of optical microcavities.
We identify the polarization-resolved modes in the spectrum and find that
resonance frequencies split in accordance with the theoretical prediction. The
observed fine structure is dominantly caused by an optical spin-orbit coupling
and non-par... | 2203.01200v1 |
2022-09-26 | High temperature spectroscopy of nitrogen vacancy centers in diamond | We study spectroscopy of negatively charged nitrogen-vacancy center in
diamond at high temperatures under high vacuum conditions. Spin resonances are
studied using optical detection of magnetic resonance (ODMR), and optical
spectroscopy is employed to study radiative transitions. Upon increasing the
temperature the int... | 2209.12558v3 |
2023-04-19 | Resonant and polarization effects in the processes of quantum electrodynamics in a strong magnetic field | The monograph considers resonance and polarization effects in quantum
electrodynamics processes that take place in a strong external magnetic field.
A method for analyzing spin-polarization effects has been developed. The
factorization of process cross sections in resonant conditions and the
representation of these cro... | 2304.09484v1 |
2003-12-15 | Interpreting black hole QPOs | In all the microquasars with two hHz QPOs, the ratio of the frequencies is
3:2, supporting our suggestion that a non-linear resonance between two modes of
oscillation in the accretion disk plays a role in exciting the observed
modulations of the X-ray flux. We discuss the evidence in favor of this
interpretation, and w... | 0312396v1 |
1994-03-10 | Resonating Valence Bond Theory of Coupled Heisenberg Chains | Using numerical results from a density matrix renormalization group study as
a guide, we develop a resonating valence bond (RVB) theory for coupled
Heisenberg chains. We argue that simple topological effects mandate a
short-range RVB description of systems with an even number of chains $n_c$,
with a spin gap, short-ran... | 9403042v2 |
1995-11-07 | Plaquette Resonating-Valence-Bond Ground State of CaV$_4$O$_9$ | A theoretical model is presented to explain the spin gap observed for
CaV$_4$O$_9$. The underlying lattice of the 1/5-depleted square lattice favors
a formation of plaquette resonating valence bond state. Inclusion of the
frustrating second neighbor interaction enhances this tendency, leading to a
quantum disordered st... | 9511034v2 |
1996-11-15 | Magnetic Dynamics in Underdoped YBCO: Direct Observation of a Superconducting Gap | Polarized and unpolarized triple-axis spectrometry has been used to study an
underdoped YBa_2Cu3O6.6. Our results indicate that spin excitations in the
superconducting state are essentially the same as those in the fully doped
material except that the unusual 41 meV resonance is observed at 34.8 meV. The
normal state s... | 9611123v1 |
1997-04-29 | Stochastic resonance and nonlinear response in a dissipative quantum two-state system | We study the dynamics of a dissipative two-level, system driven by a
monochromatic ac field, starting from the usual spin-boson Hamiltonian. The
quantum Langevin equations for the spin variables are obtained. The amplitude
of the coherent oscillations in the average position of the particle is studied
in the high tempe... | 9704243v1 |
1998-06-19 | Integrable Impurity Model with Spin and Flavour: Model Inspired by Resonant Tunneling in Quantum Dot | We introduce an integrable impurity model in which both electrons and
impurity have spin and flavour degrees of freedom. This model is a
generalization of the multi-channel Kondo model and closely related with
resonant tunneling through quantum dot. The Hamiltonian is exactly diagonalized
by means of the Bethe ansatz. | 9806227v4 |
2000-06-06 | A critical examination of the spin dynamics in high-$T_C$ cuprates | A critical examination of the spin dynamics in high-$T_C$ cuprates is made on
the light of inelastic neutron scattering results obtained by different groups.
Recent neutron data show that incommensurate magnetic peaks in YBCO belong to
the same excitation as the resonance peak observed at $(\pi/a,\pi/a)$. Being
only ob... | 0006085v2 |
2000-11-16 | Coordinate Representation of the Two-Spinon wavefunction and Spinon Interaction | By deriving and studying the coordinate representation for the two-spinon
wavefunction, we show that spinon excitations in the Haldane-Shastry model
interact. The interaction is given by a short-range attraction and causes a
resonant enhancement in the two-spinon wavefunction at short separations
between the spinons. W... | 0011270v1 |
2000-12-21 | Optics with an Atom Laser Beam | We report on the atom optical manipulation of an atom laser beam. Reflection,
focusing and its storage in a resonator are demonstrated. Precise and versatile
mechanical control over an atom laser beam propagating in an inhomogeneous
magnetic field is achieved by optically inducing spin-flips between atomic
ground state... | 0012398v2 |
2001-02-26 | Correlation of Tunneling Spectra in Bi2Sr2CaCu2O(8+delta) with the Resonance Spin Excitation | New break-junction tunneling data are reported in Bi2Sr2CaCu2O(8+delta) over
a wide range of hole concentration from underdoped (Tc = 74 K) to optimal doped
(Tc = 95 K) to overdoped (Tc = 48 K). The conductances exhibit sharp dips at a
voltage, Omega/e, measured with respect to the superconducting gap. Clear
trends are... | 0102475v1 |
2002-06-10 | Magnetic anisotropy of BaCu2Si2O7: theory and antiferromagnetic resonance | Antiferromagnetic resonance (AFMR) of BaCu2Si2O7 and a microscopic theory of
the magnetic anisotropy of spin 1/2 chain compounds with folded CuO3 geometry
being in good agreement with the available data are presented. The AFMR studies
at 4.2 K show the existence of two gaps (40 and 76 GHz) at zero magnetic field
and of... | 0206151v1 |
2002-11-26 | ESR investigation of the spin dynamics in (Gd_{1-x}Y_{x})_2PdSi_{3} | We report electron-spin resonance measurements in polycrystalline samples of
(Gd_{1-x}Y_{x})_2PdSi_{3}. We observe the onset of a broadening of the
linewidth and of a decrease of the resonance field at approximately twice the
Neel temperature in the paramagnetic state, this characteristic temperature
coincides with the... | 0211587v1 |
2002-12-28 | Charge Freezing in Zig-zag Chain Cuprates PrBa2Cu4O8 Observed by Cu Nuclear Quadrupole Resonance | We report nuclear quadrupole resonance (NQR) studies on the chain Cu sites of
PrBa$_{2}$Cu$_{4}$O$_{8}$, a quasi-one-dimensional conductor with a nearly
quarter-filled band. The nuclear spin-lattice relaxation rate $1/T_{1}$ shows a
pronounced peak near 100 K caused by fluctuations of electric field gradient
(EFG). Sim... | 0212621v1 |
2003-06-11 | Random Spin Signal in Magnetic Resonance Force Microscopy | We study a random magnetic resonance force microscopy (MRFM) signal caused by
the thermal vibrations of high frequency cantilever modes in the oscillating
cantilever-driven adiabatic reversals (OSCAR) technique. We show that the
regular MRFM signal with a characteristic decay time, $\tau_m$, is followed by
a non-dissip... | 0306292v1 |
2003-08-20 | Theory for Gossamer and Resonating Valence Bond Superconductivity | We use an effective Hamiltonian for two-dimensional Hubbard model including
an antiferromagnetic spin-spin coupling term to study recently proposed
gossamer superconductivity. We formulate a renormalized mean field theory to
approximately take into account the strong correlation effect in the partially
projected Gutzwi... | 0308398v1 |
2003-11-19 | Theory of indirect resonant inelastic X-ray scattering | We express the cross section for indirect resonant inelastic X-ray scattering
in terms of an intrinsic dynamic correlation function of the system that is
studied with this technique. The cross section is a linear combination of the
charge response function and the dynamic longitudinal spin density correlation
function.... | 0311446v1 |
2004-01-05 | Resonance magneto-resistance in double barrier structure with spin-valve | The conductance and tunnel magneto-resistance (TMR) of the double barrier
magnetic tunnel junction with spin-valve sandwich (F/P/F) inserted between two
insulating barrier, are theoretically investigated. It is shown, that resonant
tunnelling, due to the quantum well states of the electron confined between two
barriers... | 0401006v2 |
2004-01-31 | Resonant magnetic mode in superconducting 2-leg ladders | The spin dynamics of a doped 2-leg spin ladder is investigated by numerical
techniques. We show that a hole pair-magnon boundstate evolves at finite hole
doping into a sharp magnetic excitation below the two-particle continuum. This
is supported by a field theory argument based on a SO(6)-symmetric ladder.
Similarities... | 0402011v1 |
2004-07-27 | Selective optical manipulation of the spin state of a single magnetic impurity in a semiconductor quantum dot | We consider the optical properties of a single magnetic impurity in a
self-assembled quantum dot. We show that using the resonant pumping one can
address and manipulate selectively individual spin states of a magnetic
impurity. The mechanisms of resonant optical polarization of a single impurity
in a quantum dot involv... | 0407705v1 |
2005-02-07 | Electron paramagnetic resonance detected via magnetization measurements | Presented are magnetization measurements on a crystal of Fe8 single-molecule
magnets using a Hall probe magnetometer. Irradiation with microwaves at
frequencies of 92 and 110-120 GHz leads to the observation of electron
paramagnetic resonance (EPR) detected via magnetization measurements. A
quantitative analysis of the... | 0502175v1 |
2005-08-19 | Resonant Tunneling in Truly Axial Symmetry Mn12 Single-Molecule Magnets: Sharp Crossover between Thermally Assisted and Pure Quantum Tunneling | Magnetization measurements of a truly axial symmetry Mn12-tBuAc molecular
nanomagnet with a spin ground state of S = 10 show resonance tunneling. This
compound has the same magnetic anisotropy as Mn12-Ac but the molecules are
better isolated and the crystals have less disorder and a higher symmetry.
Hysteresis loop mea... | 0508437v1 |
2005-09-09 | Quantum trajectory analysis for electrical detection of single-electron spin resonance | A Monte Carlo simulation on the basis of quantum trajectory approach is
carried out for the measurement dynamics of a single electron spin resonance.
The measured electron, which is confined in either a quantum dot or a defect
trap, is tunnel-coupled to a side reservoir and continuously monitored by a
mesoscopic detect... | 0509228v2 |
2006-01-12 | Comment on On the Yield of Singlet Excitons in Organic Light-Emitting Devices: a Double Modulation Photoluminescence-Detected Magnetic Resonance Study | In a recent Letter Lee et al. studied the spin 1/2 photoluminescence-detected
magnetic resonance (PLDMR) of a soluble derivative of poly-phenylene vinylene
[MEH-PPV] and argued that it originates from the interaction of triplet
excitons with polarons. We show that in MEH-PPV as well as in other conjugated
polymers the ... | 0601246v1 |
2006-06-30 | Momentum-resolved electron-phonon interaction in lead determined by neutron resonance spin-echo spectroscopy | Neutron resonance spin-echo spectroscopy was used to monitor the temperature
evolution of the linewidths of transverse acoustic phonons in lead across the
superconducting transition temperature, $T_c$, over an extended range of the
Brillouin zone. For phonons with energies below the superconducting energy gap,
a linewi... | 0606816v1 |
2006-08-10 | Gate-controlled nuclear magnetic resonance in an AlGaAs/GaAs quantum Hall device | We study the resistively detected nuclear magnetic resonance (NMR) in an
AlGaAs/GaAs quantum Hall device with a side gate. The strength of the hyperfine
interaction between electron and nuclear spins is modulated by tuning a
position of the two-dimensional electron systems with respect to the polarized
nuclear spins us... | 0608237v1 |
1999-09-25 | On the Resonant Spin Flavor Precession of the Neutrino in the Sun | This work deals with the possible solution of the solar neutrino problem in
the framework of the resonant neutrino spin-flavor precession scenario. The
event rate results from the solar neutrino experiments as well as the recoil
electron energy spectrum from SuperKamiokande are used to constrain the free
parameters of ... | 9909512v1 |
2004-05-24 | Composite Vector Mesons from QCD to the Little Higgs | We review how the rho meson can be modeled in an effective theory and discuss
the implications of applying this approach to heavier spin-one resonances.
Georgi's vector limit is explored, and its relationship to locality in a
deconstructed extra-dimension is discussed. We then apply the formalism for
rho's to strongly ... | 0405242v1 |
2006-04-07 | The sum rules for the spin dependent structure functions $g_1$ in the isovector reaction | In the isovector reaction, the sum rule for the spin dependent function $g_1$
which is related to the cross section of the photoproduction is derived. In the
small $Q^2$ region, the sum rule is dominated by the low energy contribution
and it tightly connects the resonance, the elastic, and the non-resonant
contribution... | 0604073v2 |
2007-01-28 | The constraint on the spin dependent structure function $g_1$ at low $Q^2$ through the sum rule corresponding to the moment at $n=0$ | The sum rules for the spin dependent structure function $g_1^{ab}$ in the
null-plane formalism corresponding to the moment at $n=0$ has been transformed
to the sum rule which relates the $g_1^{ab}$ with the cross section of the
isovector photon or the real photon. Based on these sum rules, we argue that
there is a deep... | 0701236v1 |
2000-02-09 | Polarization phenomena in the reaction NN to NNpi near threshold | First calculations for spin-dependent observables of the reactions $pp \to
pp\pi^0$, $pp \to pn\pi^+$ and $pp \to d\pi^+$ near threshold are presented,
employing the J\"ulich model for pion production. The influence of resonant
(via the excitation of the $\Delta (1232)$) and non-resonant p-wave pion
production mechanis... | 0002025v1 |
2003-02-25 | Realistic simulations of single-spin nondemolition measurement by magnetic resonance force microscopy | A requirement for many quantum computation schemes is the ability to measure
single spins. This paper examines one proposed scheme: magnetic resonance force
microscopy, including the effects of thermal noise and back-action from
monitoring. We derive a simplified equation using the adiabatic approximation,
and produce ... | 0302178v1 |
2007-07-27 | Direct observation of mixing of spin-multiplets in an antiferromagnetic molecular nanomagnet by electron paramagnetic resonance | High-frequency electron paramagnetic resonance (EPR) studies of the
antiferromagnetic Mn-$[3\times 3]$ molecular grid clearly reveal a breaking of
the $\Delta S = 0$ selection rule, providing direct evidence for the mixing of
spin wavefunctions ($S$-mixing) induced by the comparable exchange and
magneto-anisotropy ener... | 0707.4109v1 |
2007-10-04 | Deuteron spin structure functions in the resonance and DIS regions | We derive relations between spin-dependent nuclear and nucleon g_1 and g_2
structure functions within the nuclear impulse approximation, which are valid
at all Q^2, and in both the resonance and deep inelastic regions. We apply the
formalism to the specific case of the deuteron, which is often used as a source
of neutr... | 0710.1101v4 |
2008-05-18 | The Aharonov-Bohm-Casher ring-dot as a flux-tunable resonant tunneling diode | A mesoscopic ring subject to the Rashba spin-orbit interaction and
sequentially coupled to an interacting quantum dot, in the presence of
Aharonov-Bohm flux, is proposed as a flux tunable tunneling diode. The analysis
of the conductance by means of the nonequilibrium Green's function technique,
shows an intrinsic bista... | 0805.2715v1 |
2008-09-23 | Spin structure functions of 3He at finite Q^2 | Using recently derived relations between spin-dependent nuclear and nucleon
g_1 and g_2 structure functions at finite Q^2, we study nuclear effects in 3He
in the nucleon resonance and deep inelastic regions. Comparing the finite-Q^2
results with the standard convolution formulas obtained in the large-Q^2 limit,
we find... | 0809.3998v2 |
2009-03-22 | Spin resonance in chiral helimagnet | It is suggested that marked features of symmetry breaking mechanism and
elementary excitations in chiral helimagnet come up as visible effects in
electron spin resonance (ESR) profile. Under the magnetic field applied
parallel and perpendicular to the helical axis, elementary excitations are
respectively described by t... | 0903.3699v2 |
2009-05-14 | Single-Spin Microscope with Sub-Nanoscale Resolution Based on Optically Detected Magnetic Resonance | We summarize our new scanning magnetic 3-D imaging system. This scanning
system uses optically detected magnetic resonance in a single nitrogen vacancy
center in a diamond nanocrystal. The theoretical analysis and the first
experimental demonstrations have proved that this method has single spin
sensitivity and a sub-n... | 0905.2361v1 |
2009-05-25 | Electron Spin Resonance investigation of undoped and Li-doped CdWO_4 scintillator crystals | Electron spin resonance (ESR) spectra of Fe3+ and Mn2+ ions have been studied
in the nominally pure and 0.05% Li-doped single crystals of CdWO4. The
zero-field splitting parameters are determined with a high precision for both
of the impurities. The result suggest that the Li-doping leads to the increase
of the ionic c... | 0905.4011v1 |
2009-08-19 | Evolution of the spin resonance in CeCoIn$_5$ under magnetic field | The evolution of the magnetic excitation spectrum of the unconventional
superconductor CeCoIn$_{5}$ was studied by inelastic neutron scattering as a
function of magnetic field applied in the [1, -1, 0] direction. The spin
resonance characteristic of the superconducting states was observed up to about
$H_{c2}$/2 : it is... | 0908.2688v1 |
2009-11-04 | Theory of Resonant Inelastic X-ray Scattering by Collective Magnetic Excitations | I present a tractable theory for the Resonant Inelastic X-ray Scattering
(RIXS) spectral function of magnons. The low-energy transition operator is
written as a product of local spin operators times fundamental x-ray absorption
spectra. This leads to simple selection rules for the magnetic cross section.
The scattering... | 0911.0706v2 |
2010-04-03 | The incarnation of the Nersesyan-Tsvelik model in (NO)[Cu(NO3)3] | The topology of the magnetic interactions of the copper spins in the
nitrosonium nitratocuprate (NO)[Cu(NO3)3] suggests that it could be a
realization of the Nersesyan-Tsvelik model, whose ground state was argued to be
either a resonating valence bond (RVB) state or a valence bond crystal (VBC).
The measurement of ther... | 1004.0444v1 |
2010-09-15 | Using Superconducting Qubit Circuits to Engineer Exotic Lattice Systems | We propose an architecture based on superconducting qubits and resonators for
the implementation of a variety of exotic lattice systems, such as spin and
Hubbard models in higher or fractal dimensions and higher-genus topologies.
Spin systems are realized naturally using qubits, while superconducting
resonators can be ... | 1009.2888v2 |
2011-01-11 | Observation of quark-hadron duality in gamma*-p helicity cross sections | Combining data on unpolarized and polarized inclusive proton structure
functions, we perform the first detailed study of quark-hadron duality in
individual helicity-1/2 and 3/2 virtual photoproduction cross sections. We find
that duality is realized more clearly in the helicity-1/2 channel, with duality
violating corre... | 1101.2016v1 |
2011-02-14 | Application of Resonance Perturbation Theory to Dynamics of Magnetization in Spin Systems Interacting with Local and Collective Bosonic Reservoirs | We apply our recently developed resonance perturbation theory to describe the
dynamics of magnetization in paramagnetic spin systems interacting
simultaneously with local and collective bosonic environments. We derive
explicit expressions for the evolution of the reduced density matrix elements.
This allows us to calcu... | 1102.2847v1 |
2012-07-08 | Signatures of Non-Standard Electroweak Symmetry Breaking | This is the write-up of a talk given at the EW session in Moriond (March
2012). I summarize some non-standard electroweak scenarios, and how they
predict the existence of new spin-two resonances. Spin-two resonances, whether
coming from the compactification of extra-dimensions or from a new sector of
strong interaction... | 1207.1912v1 |
2012-10-31 | Adiabatic Continuation between Resonating-Valence-Bond Electron and Spin Liquids | The Hubbard model in the strong-coupling regime is studied by the
Kondo-lattice theory. If no symmetry is broken at a sufficiently low
temperature in sufficiently low dimensions, an electron liquid is stabilized by
the Fock-type exchange effect of the superexchange interaction. Since the
stabilization mechanism is none... | 1210.8211v1 |
2013-04-01 | Fulde-Ferrell superfluidity in ultracold Fermi gases with Rashba spin-orbit coupling | We theoretically investigate the inhomogeneous Fulde-Ferrell (FF)
superfluidity in a three dimensional atomic Fermi gas with Rashba spin-orbit
coupling near a broad Feshbach resonance. We show that within mean-field theory
the FF superfluid state is always more favorable than the standard
Bardeen-Cooper-Schrieffer (BCS... | 1304.0387v2 |
2013-04-11 | Electrically-protected resonant exchange qubits in triple quantum dots | We present a modulated microwave approach for quantum computing with qubits
comprising three spins in a triple quantum dot. This approach includes single-
and two-qubit gates that are protected against low-frequency electrical noise,
due to an operating point with a narrowband response to high frequency electric
fields... | 1304.3407v2 |
2013-07-15 | Theory of the Electron Spin Resonance in the Heavy Fermion Metal β-YbAlB4 | The heavy fermion metal \beta-YbAlB4 exhibits a bulk room temperature
conduction electron ESR signal which evolves into an Ising-anisotropic
f-electron signal exhibiting hyperfine features at low temperatures. We develop
a theory for this phenomenon based on the development of resonant scattering
off a periodic array o... | 1307.4109v2 |
2013-10-01 | Isoscalar Giant Resonance Strengths in $^{32}$S and possible excitations of superdeformed and $^{28}$Si + $α$ cluster bandheads | Isoscalar giant resonances and low spin states in $^{32}$S have been measured
with inelastic $\alpha$ scattering at extremely forward angles including zero
degrees at E$_{\alpha}$ = 386 MeV. By applying the multipole decomposition
analysis, various excited states are classified according to their spin and
parities (J$^... | 1310.0169v1 |
2014-02-20 | Polarization Test of Higgs Spin and Parity | A polarization test is applied to determine the spin and the parity of the
observed resonance at LHC, which is believed to be the expected "Higgs"
particle. The test is based on very general principles and is completely
independent of dynamical assumptions. We have also identified a set of
observables that discriminate... | 1402.5117v2 |
2014-04-04 | All-optical high-resolution magnetic resonance using a nitrogen-vacancy spin in diamond | We propose an all-optical scheme to prolong the quantum coherence of a
negatively charged nitrogen-vacancy (NV) center in diamond. Optical control of
the NV spin suppresses energy fluctuations of the $^{3}\text{A}_{2}$ ground
states and forms an energy gap protected subspace. By optical control, the
spectral linewidth ... | 1404.1190v1 |
2014-05-08 | A single quantum dot as an optical thermometer for mK temperatures | Resonant laser spectroscopy of a negatively charged self-assembled quantum
dot is utilized to measure the temperature of a three dimensional fermionic
reservoir down to 100mK. With a magnetic field applied to the quantum dot the
single charged ground state is split by the Zeeman energy. As the quantum dot
is in tunnel ... | 1405.1981v1 |
2014-05-15 | Measuring the Spin and Parity of a Resonance in the Diphoton Decay Channel | We present a way to determine the spin and parity of a resonance produced
through gluon fusion with a decay to a $\gamma\gamma$ pair based on the
transverse momentum and Collins-Soper $\phi$ distribution. This method also
allows one to distinguish between various non-minimal coupling spin-2 scenarios
and can be used in... | 1405.3875v1 |
2014-10-28 | Resonant Landau-Zener transitions in helical magnetic fields | The spin-dependent electron transport has been studied in magnetic
semiconductor waveguides (nanowires) in the helical magnetic field. We have
shown that -- apart from the known conductance dip located at the magnetic
field equal to the helical-field amplitude $B_h$ -- the additional conductance
dips (with zero conduct... | 1410.7662v1 |
2015-05-14 | Resonant single and multi-photon coherent transitions in a detuned regime | We performed quantum manipulations of the multi-level spin system S=5/2 of a
Mn$^{2+}$ ion, by means of a two-tone pulse drive. The detuning between the
excitation and readout radio frequency pulses allows one to select the number
of photons involved in a Rabi oscillation as well as increase the frequency of
this nutat... | 1505.03649v1 |
2015-10-01 | Effect of Geomagnetism on 101Ru Nuclear Quadrupole Resonance Measurements of CeRu2 | We performed 101Ru nuclear quadrupole resonance (NQR) measurements on the
s-wave superconductor CeRu2 and found oscillatory behavior in the spin-echo
amplitude at the +-1/2 <-> +-3/2 transitions but not at the +-3/2 <-> +-5/2
transitions. The modulation disappears in the superconducting state or in a
magnetic shield, w... | 1510.00107v1 |
2016-09-08 | Kondo resonance of a Co atom exchange coupled to a ferromagnetic tip | The Kondo effect of a Co atom on Cu(100) was investigated with a
low-temperature scanning tunneling microscope using a monoatomically sharp
nickel tip. Upon a tip-Co contact, the differential conductance spectra exhibit
a spin-split asymmetric Kondo resonance. The computed ab initio value of the
exchange coupling is to... | 1609.02363v1 |
2017-07-10 | Spontaneous and Superfluid Chiral Edge States in Exciton-Polariton Condensates | We present a scheme of interaction-induced topological bandstructures based
on the spin anisotropy of exciton-polaritons in semiconductor microcavities. We
predict theoretically that this scheme allows the engineering of topological
gaps, without requiring a magnetic field or strong spin-orbit interaction
(transverse e... | 1707.02776v1 |
2017-11-19 | Superefficient long-lived multiresonator quantum memory | In this paper, we propose a scheme of a long-lived broadband superefficient
multiresonator quantum memory in which a common resonator is connected with an
external waveguide and with a system of high-quality miniresonators containing
long-lived resonant electron spin ensembles. The scheme with 4 miniresonators
has been... | 1711.07014v1 |
2017-11-20 | Electron paramagnetic resonance g-tensors from state interaction spin-orbit coupling density matrix renormalization group | We present a state interaction spin-orbit coupling method to calculate
electron paramagnetic resonance (EPR) $g$-tensors from density matrix
renormalization group wavefunctions. We apply the technique to compute
$g$-tensors for the \ce{TiF3} and \ce{CuCl4^2-} complexes, a [2Fe-2S] model of
the active center of ferredox... | 1711.07195v3 |
2017-12-08 | $^{89}$Y nuclear spin-lattice relaxation in SrY$_2$O$_4$:Ho$^{3+}$ single crystals | Measurements of 89Y nuclear spin-lattice relaxation in SrY2O4:Ho3+ crystals
for the magnetic field B parallel to the crystal c axis show that 89Y at T < 20
K relaxes due to fluctuating magnetic field created only by Ho13+ transitions
between the ground and the first excited Zeeman sublevels of the 5I8 multiplet. | 1712.03041v1 |
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