Results for "W. Yang"

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Spin relaxation in diluted magnetic semiconductor quantum dotsJun 28 2005Jun 30 2005Electron spin relaxation induced by phonon-mediated s-d exchange interaction in a II-VI diluted magnetic semiconductor quantum dot is investigated theoretically. The electron-acoustic phonon interaction due to piezoelectric coupling and deformation potential ... More
Nonlinear Rashba Model and Spin Relaxation in Quantum WellsSep 13 2006We find that the Rashba spin splitting is intrinsically a nonlinear function of the momentum, and the linear Rasha model may overestimate it significantly, especially in narrow-gap materials. A nonlinear Rashba model is proposed, which is in good agreement ... More
Models of $μ$ Her with asteroseismic constraintsNov 04 2009Using the Yale stellar evolution code, models of mu Her based on asteroseismic measurements are constructed. A $\chi^{2}$ minimization is performed to approach the best modeling parameters which reproduce the observations within their errors. By combining ... More
Differentiable Learning of Logical Rules for Knowledge Base ReasoningFeb 27 2017Nov 27 2017We study the problem of learning probabilistic first-order logical rules for knowledge base reasoning. This learning problem is difficult because it requires learning the parameters in a continuous space as well as the structure in a discrete space. We ... More
A Symmetry-Based Method for Constructing Nonlocally Related PDE SystemsNov 01 2012Jan 14 2014Nonlocally related partial differential equation (PDE) systems are useful in the analysis of a given PDE system. It is known that each local conservation law of a given PDE system systematically yields a nonlocally related system. In this paper, a new ... More
Statistical Mechanics of the Cosmological Many-body Problem and its Relation to Galaxy ClusteringFeb 04 2009The cosmological many-body problem is effectively an infinite system of gravitationally interacting masses in an expanding universe. Despite the interactions' long-range nature, an analytical theory of statistical mechanics describes the spatial and velocity ... More
The Period-Luminosity Relation of Red Supergiant Stars in the Small Magellanic CloudMay 07 2012The characteristics of light variation of RSGs in SMC are analyzed based on the nearly 8-10 year long data collected by the ASAS and MACHO projects. The identified 126 RSGs are classified into five categories accordingly: 20 with poor photometry, 55 with ... More
Red Supergiant Stars in the Large Magellanic Cloud: I. The Period-Luminosity RelationNov 23 2010From previous samples of Red Supergiants (RSGs) by various groups, 191 objects are assembled to compose a large sample of RSG candidates in LMC. For 189 of them, the identity as a RSG is verified by their brightness and color indexes in several near- ... More
Exact solution of $Z_n$ Belavin model with open boundary conditionAug 20 2003$Z_n$ Belavin model with open boundary condition is studied. The double-row transfer matrices of the model are diagonalized by algebraic Bethe ansatz method in terms of the intertwiner and the face-vertex correspondence relation. The eigenvalues and the ... More
Gauge-invariant microscopic kinetic theory of superconductivity in response to electromagnetic fieldsJul 09 2018Within a gauge-invariant microscopic kinetic theory, we study the electromagnetic response in the superconducting states. Both superfluid and normal-fluid dynamics are involved. We predict that the normal fluid is present only when the excited superconducting ... More
Batched Sparse CodesJun 23 2012Feb 06 2014Network coding can significantly improve the transmission rate of communication networks with packet loss compared with routing. However, using network coding usually incurs high computational and storage costs in the network devices and terminals. For ... More
Gauge-invariant microscopic kinetic theory of superconductivity: application to electromagnetic response of Nambu-Goldstone and Higgs modesDec 17 2018We show that the gauge-invariant kinetic equation of superconductivity provides an efficient approach to study the electromagnetic response of the gapless Nambu-Goldstone and gapful Higgs modes on an equal footing. We prove that the Fock energy in the ... More
Fulde-Ferrell-Larkin-Ovchinnikov state in spin-orbit-coupled superconductorsApr 03 2017We show that in the presence of magnetic field, two superconducting phases with the center-of-mass momentum of Cooper pair parallel to the magnetic field are induced in spin-orbit-coupled superconductor Li$_2$Pd$_3$B. Specifically, at small magnetic field, ... More
Spin diffusion in p-type bilayer WSe$_2$Apr 07 2016Jun 06 2016We investigate the steady-state out-of-plane spin diffusion in p-type bilayer WSe2 in the presence of the Rashba spin-orbit coupling and Hartree-Fock effective magnetic field. The out-of-plane components of the Rashba spin-orbit coupling serve as the ... More
Optimal Control of Conditional Value-at-Risk in Continuous TimeDec 16 2015Jan 23 2017We consider continuous-time stochastic optimal control problems featuring Conditional Value-at-Risk (CVaR) in the objective. The major difficulty in these problems arises from time-inconsistency, which prevents us from directly using dynamic programming. ... More
Solution of the dual reflection equation for $A^{(1)}_{n-1}$ SOS modelAug 19 2003Oct 25 2004We obtain a diagonal solution of the dual reflection equation for elliptic $A^{(1)}_{n-1}$ SOS model. The isomorphism between the solutions of the reflection equation and its dual is studied.
Localized states in a semiconductor quantum ring with a tangent wireJun 13 2014Aug 14 2014We extend a special kind of localized state trapped at the intersection due to the geometric confinement, first proposed in a three-terminal-opening T-shaped structure [Euro. Phys. Lett. {\bf 55}, 539 (2001)], into a ring geometry with a tangent connection ... More
Modular transformation and twist between trigonometric limits of $sl(n)$ elliptic R-matrixMar 23 2001Nov 15 2001We study the modular transformation of ${\bf Z}_n$-symmetric elliptic R-matrix and construct the twist between the trigonometric degeneracy of the elliptic R-matrix.
Pulsed Laser Deposition of a PBN:65 Morphotropic Phase Boundary Thin Film with Large ElectrostrictionJan 03 2005We deposited epitaxial thin films of Morphotropic Phase Boundary (MPB) Pb0.65Ba0.35Nb2O6 (PBN:65) on MgO substrates using pulsed laser deposition. Afterwards, a novel transmission optical experiment was developed to measure the electric field-induced ... More
Optimal Dynamic Contracts for a Large-Scale Principal-Agent Hierarchy: A Concavity-Preserving ApproachJun 17 2015We present a continuous-time contract whereby a top-level player can incentivize a hierarchy of players below him to act in his best interest despite only observing the output of his direct subordinate. This paper extends Sannikov's approach from a situation ... More
Gapped superconductivity with all symmetries in InSb (110) quantum wells in proximity to s-wave superconductor in Fulde-Ferrell-Larkin-Ovchinnikov phase or with a supercurrentNov 15 2016Feb 05 2017We show that all the singlet even-frequency, singlet odd-frequency, triplet even-frequency and triplet odd-frequency pairings, and together with the corresponding order parameters (gaps) can be realized in InSb (110) spin-orbit-coupled quantum well in ... More
Asteroseismic constraints on the OPAL opacity interpolationJun 05 2008The frequency difference between a model used only two-point interpolation of opacity and a model used piecewise linear interpolation of opacity is of the order of several microHertz at a certain stage, which is almost 10 times worse than the observational ... More
Decoherence of coupled electron spins via nuclear spin dynamics in quantum dotsJul 17 2007In double quantum dots, the exchange interaction between two electron spins renormalizes the excitation energy of pair-flips in the nuclear spin bath, which in turn modifies the non-Markovian bath dynamics. As the energy renormalization varies with the ... More
Explicit Integration of Friedmann's Equation with Nonlinear Equations of StateFeb 17 2015Mar 07 2015This paper is a continuation of our earlier study on the integrability of the Friedmann equations in the light of the Chebyshev theorem. Our main focus will be on a series of important, yet not previously touched, problems when the equation of state for ... More
WikiPassageQA: A Benchmark Collection for Research on Non-factoid Answer Passage RetrievalMay 10 2018With the rise in mobile and voice search, answer passage retrieval acts as a critical component of an effective information retrieval system for open domain question answering. Currently, there are no comparable collections that address non-factoid question ... More
Isospin Symmetry Breaking in the Quark Condensates, $< \bar dd>\not= < \bar uu>$, as Estimated from QCD Sum RulesMar 21 1998Isospin symmetry breaking in the quark condensates, $< \bar dd> \not= < \bar uu>$, is a fundamental parameter in both the QCD sum rule studies and the chiral perturbation theory. In this article, we apply the QCD sum rule method to treat the hyperon mass ... More
Intrinsic Spin Hall Effect Induced by Quantum Phase Transition in HgCdTe Quantum WellsNov 13 2007Spin Hall effect can be induced both by the extrinsic impurity scattering and by the intrinsic spin-orbit coupling in the electronic structure. The HgTe/CdTe quantum well has a quantum phase transition where the electronic structure changes from normal ... More
Thermal And Mechanical Analysis of High-power Light-emitting Diodes with Ceramic PackagesJan 07 2008In this paper we present the thermal and mechanical analysis of high-power light-emitting diodes (LEDs) with ceramic packages. Transient thermal measurements and thermo-mechanical simulation were performed to study the thermal and mechanical characteristics ... More
Angular momentum transport and element mixing in the stellar interior I. Application to the rotating SunMay 23 2008The purpose of this work was to obtain diffusion coefficient for the magnetic angular momentum transport and material transport in a rotating solar model. We assumed that the transport of both angular momentum and chemical elements caused by magnetic ... More
Dynamically twisted algebra $A_{q,p;\hatπ}(\hat{gl_2})$ as current algebra generalizing screening currents of q-deformed Virasoro algebraSep 13 1997Oct 24 1997In this paper, we propose an elliptic algebra $A_{q,p;\hat{\pi}}(\hat{gl_2})$ which is based on the relations $RLL=LLR^{*}$, where $R$ and $R^{*}$ are the dynamical R-maxtrices of $A^{(1)}_{1}$ type face model with the elliptic moduli shifted by the center ... More
Kinematics of the swimming of SpiroplasmaJun 29 2009\emph{Spiroplasma} swimming is studied with a simple model based on resistive-force theory. Specifically, we consider a bacterium shaped in the form of a helix that propagates traveling-wave distortions which flip the handedness of the helical cell body. ... More
A Simple Regularization-based Algorithm for Learning Cross-Domain Word EmbeddingsFeb 01 2019Learning word embeddings has received a significant amount of attention recently. Often, word embeddings are learned in an unsupervised manner from a large collection of text. The genre of the text typically plays an important role in the effectiveness ... More
Proof of a conjecture of Kløve on permutation codes under the Chebychev distanceApr 05 2017Let $d$ be a positive integer and $x$ a real number. Let $A_{d, x}$ be a $d\times 2d$ matrix with its entries $$ a_{i,j}=\left\{ \begin{array}{ll} x\ \ & \mbox{for} \ 1\leqslant j\leqslant d+1-i, 1\ \ & \mbox{for} \ d+2-i\leqslant j\leqslant d+i, 0\ \ ... More
A Variational Approach to Nonlocal Exciton-Phonon CouplingSep 19 1996In this paper we apply variational energy band theory to a form of the Holstein Hamiltonian in which the influence of lattice vibrations (optical phonons) on both local site energies (local coupling) and transfers of electronic excitations between neighboring ... More
The frequency separations of stellar p-modesJun 21 2007Sep 03 2007Aims. The purpose of this work is to investigate a new frequency separation of stellar p-modes and its characteristics. Methods. Frequency separations are deduced from the asymptotic formula of stellar p-modes. Then, using the theoretical adiabatic frequencies ... More
Quantile Regression for Large-scale ApplicationsMay 01 2013Jan 07 2014Quantile regression is a method to estimate the quantiles of the conditional distribution of a response variable, and as such it permits a much more accurate portrayal of the relationship between the response variable and observed covariates than methods ... More
Solar Models with Revised Abundances and OpacitiesMay 23 2008Using reconstructed opacities, we construct solar models with low heavy-element abundance. Rotational mixing and enhanced diffusion of helium and heavy elements are used to reconcile the recently observed abundances with helioseismology. The sound speed ... More
Central elements of the elliptic $Z_n$ monodromy matrix algebra at roots of unityApr 13 2004Feb 27 2005The central elements of the algebra of monodromy matrices associated with the $\mathbb{Z}_n$ R-matrix are studied. When the crossing parameter $w$ takes a special rational value $w=\frac{n}{N}$, where $N$ and $n$ are positive coprime integers, the center ... More
Analytical Solutions of Singular Isothermal Quadrupole LensMay 13 2013Using analytical method, we study the Singular Isothermal Quadrupole (SIQ) lens system, which is the simplest lens model that can produce four images. In this case, the radial mass distribution is in accord with the profile of the Singular Isothermal ... More
Hierarchical Maximum Margin Learning for Multi-Class ClassificationFeb 14 2012Due to myriads of classes, designing accurate and efficient classifiers becomes very challenging for multi-class classification. Recent research has shown that class structure learning can greatly facilitate multi-class learning. In this paper, we propose ... More
Two-component theory of a droplet of electrons in half-filled Landau levelMar 31 1999We have investigated low energy excitations of a disk of electrons in half-filled Landau level using trail wave function and small-size exact diagonalization approaches. We have constructed a set of many-body basis states that describe correctly the low ... More
Scaling behavior of charged hadron $p_{T}$ distributions in $pp$ and $p\bar{p}$ collisionsMar 21 2014Aug 18 2014We report on a scaling behaviour in the transverse momentum ($p_{T}$) distributions for charged hadrons produced in proton-proton ($pp$) collisions with different center of mass energies ($\sqrt{s}$ = 0.9, 2.76 and 7 TeV) at the Compact Muon Solenoid ... More
Heralded Quantum Entanglement between Distant Matter QubitsJan 20 2014Jun 15 2015We propose a scheme to realize heralded quantum entanglement between two distant matter qubits using two $\Lambda$ atom systems. Our proposal does not need any photon interference. We also present a general theory of outcome state of non-monochromatic ... More
Analytic Solutions for D-optimal Factorial Designs under Generalized Linear ModelsJun 22 2013Oct 11 2013We develop two analytic approaches to solve D-optimal approximate designs under generalized linear models. The first approach provides analytic D-optimal allocations for generalized linear models with two factors, which include as a special case the $2^2$ ... More
Hole spin relaxation in bilayer WSe$_2$Jun 15 2015We investigate the hole spin relaxation due to the Rashba spin-orbit coupling induced by an external perpendicular electric field in bilayer WSe$_2$. The Rashba spin-orbit coupling coefficients in bilayer WSe$_2$ are constructed from the corresponding ... More
Large spin pumping effect in antisymmetric precession of Ni$_{79}$Fe$_{21}$/Ru/Ni$_{79}$Fe$_{21}$Mar 25 2016In magnetic trilayer structures, a contribution to the Gilbert damping of ferromagnetic resonance arises from spin currents pumped from one layer to another. This contribution has been demonstrated for layers with weakly coupled, separated resonances, ... More
Implementing Randomized Matrix Algorithms in Parallel and Distributed EnvironmentsFeb 10 2015Jul 27 2015In this era of large-scale data, distributed systems built on top of clusters of commodity hardware provide cheap and reliable storage and scalable processing of massive data. Here, we review recent work on developing and implementing randomized matrix ... More
A q-analogue of some binomial coefficient identities of Y. SunAug 09 2010Apr 05 2011We give a $q$-analogue of some binomial coefficient identities of Y. Sun [Electron. J. Combin. 17 (2010), #N20] as follows: {align*} \sum_{k=0}^{\lfloor n/2\rfloor}{m+k\brack k}_{q^2}{m+1\brack n-2k}_{q} q^{n-2k\choose 2} &={m+n\brack n}_{q}, \sum_{k=0}^{\lfloor ... More
Nearly isotropic spin-pumping related Gilbert damping in Pt/Ni$_{81}$Fe$_{19}$/PtOct 24 2018Feb 22 2019A recent theory by Chen and Zhang [Phys. Rev. Lett. 114, 126602 (2015)] predicts strongly anisotropic damping due to interfacial spin-orbit coupling in ultrathin magnetic films. Interfacial Gilbert-type relaxation, due to the spin pumping effect, is predicted ... More
Raman spectroscopic determination of the length, strength, compressibility, Debye temperature, elasticity, and force constant of the C-C bond in grapheneSep 19 2011From the perspective of bond relaxation and vibration, we have reconciled the Raman shifts of graphene under the stimuli of the number-of-layer, uni-axial-strain, pressure, and temperature in terms of the response of the length and strength of the representative ... More
Interaction Effects and Pseudogap in Two-Dimensional Lateral Tunnel JunctionsFeb 28 2006Tunneling characteristics of a two-dimensional lateral tunnel junction (2DLTJ) are reported. A pseudogap on the order of Coulomb energy is detected in the tunneling density of states (TDOS) when two identical two-dimensional electron systems are laterally ... More
Cascade of Quantum Phase Transitions in Tunnel-Coupled Edge StatesNov 03 2003Feb 04 2004We report on the cascade of quantum phase transitions exhibited by tunnel-coupled edge states across a quantum Hall line junction. We identify a series of quantum critical points between successive strong and weak tunneling regimes in the zero-bias conductance. ... More
Entanglement without Dissipation: A Touchstone for an exact Comparison of Entanglement MeasuresMay 11 2010Entanglement, which is an essential characteristic of quantum mechanics, is the key element in potential practical quantum information and quantum communication systems. However, there are many open and fundamental questions (relating to entanglement ... More
Spintronic properties of one-dimensional electron gas in graphene armchair ribbonsApr 02 2012Sep 17 2012We have investigated, using effective mass approach (EMA), magnetic properties of a one-dimensional electron gas in graphene armchair ribbons when the electrons of occupy only the lowest conduction subband. We find that magnetic properties of the one-dimensional ... More
Quantum-enhanced microscopy with binary-outcome photon countingJun 10 2016A polarized light microscopy using path-entangled $N$-photon states (i.e., the N00N states) has been recently demonstrated to surpass the shot-noise limit at low flux illumination level. However, the microscopy images suffers from divergence of phase ... More
The possible $Σ^0$-$Λ$ mixing in QCD sum rulesFeb 14 1998We calculate the on-shell $\Sigma^0$-$\Lambda$ mixing parameter $\theta$ with the method of QCD sum rule. Our result is $\theta (m^2_{\Sigma^0}) =(-)(0.5\pm 0.1)$MeV. The electromagnetic interaction is not included.
On the Analysis of Bacterial Cooperation with a Characterization of 2D Signal PropagationDec 01 2018The exchange of small molecular signals within microbial populations is generally referred to as quorum sensing (QS). QS is ubiquitous in nature and enables microorganisms to respond to fluctuations of living environments by working together. In this ... More
Bell-state preparation for fullerene based electron spins in distant peapod nanotubesSep 18 2008We propose a potentially practical scheme, in combination with the Bell-state analyzer [Zhang et al., Phys. Rev. A 73, 014301 (2006)], to generate Bell states for two electron spins confined, respectively, in two distant fullerenes. To this end, we consider ... More
Expected Density of Cooperative Bacteria in a 2D Quorum Sensing Based Molecular Communication SystemDec 01 2018May 04 2019The exchange of small molecular signals within microbial populations is generally referred to as quorum sensing (QS). QS is ubiquitous in nature and enables microorganisms to respond to fluctuations in living environments by working together. In this ... More
aNMM: Ranking Short Answer Texts with Attention-Based Neural Matching ModelJan 05 2018As an alternative to question answering methods based on feature engineering, deep learning approaches such as convolutional neural networks (CNNs) and Long Short-Term Memory Models (LSTMs) have recently been proposed for semantic matching of questions ... More
$Z_n$ elliptic Gaudin model with open boundariesSep 01 2004Oct 18 2004The $Z_n$ elliptic Gaudin model with integrable boundaries specified by generic non-diagonal K-matrices with $n+1$ free boundary parameters is studied. The commuting families of Gaudin operators are diagonalized by the algebraic Bethe ansatz method. The ... More
Spin-polarized transport in a lateral two-dimensional diluted magnetic semiconductor electron gasSep 23 2005The transport property of a lateral two-dimensional diluted magnetic semiconductor electron gas under a spatially periodic magnetic field is investigated theoretically. We find that the electron Fermi velocity along the modulation direction is highly ... More
Standing waves in near-parallel vortex filamentsNov 19 2014Aug 19 2016A model derived in [14] for n near-parallel vortex filaments in a three dimensional fluid region takes into consideration the pairwise interaction between the filaments along with an approximation for motion by self-induction. The same system of equations ... More
Nanosize confinement induced enhancement of spontaneous polarization in a ferroelectric nanowireMay 17 2010We theoretically showed that the spontaneous polarization in ferroelectric (FE) nanowires (NWs) can be considerably enhanced due to the nanosize confinement by the first-principles calculations. The spontaneous polarization along the wire direction in ... More
Natural Fueling of a Tokamak Fusion ReactorDec 17 2009A natural fueling mechanism that helps to maintain the main core deuterium and tritium (DT) density profiles in a tokamak fusion reactor is discussed. In H-mode plasmas dominated by ion- temperature gradient (ITG) driven turbulence, cold DT ions near ... More
Quantum interferometry with binary-outcome measurements in the presence of phase diffusionApr 04 2014Jul 09 2014Optimal measurement scheme with an efficient data processing is important in quantum-enhanced interferometry. Here we prove that for a general binary outcome measurement, the simplest data processing based on inverting the average signal can saturate ... More
Several Localized Waves Induced by Linear Interference between a Nonlinear Plane Wave and Bright SolitonsAug 31 2017We investigate linear interference effects between a nonlinear plane wave and bright solitons, which are admitted by pair-transition coupled two-component Bose-Einstein condensate. We demonstrate the interference effects can induce several localized waves ... More
Possible Nematic Spin Liquid in Spin-$1$ Antiferromagnetic System on the Square Lattice: Implication for the Nematic Paramagnetic State of FeSeJun 03 2016The exotic normal state of iron chalcogenide superconductor FeSe, which exhibits vanishing magnetic order and possesses an electronic nematic order, triggered extensive explorations of its magnetic ground state. To understand its novel properties, we ... More
Refined Coding Bounds and Code Constructions for Coherent Network Error CorrectionApr 13 2009Jan 22 2010Coherent network error correction is the error-control problem in network coding with the knowledge of the network codes at the source and sink nodes. With respect to a given set of local encoding kernels defining a linear network code, we obtain refined ... More
Comments on k-Strings at Large NDec 29 2010Jan 04 2011We present a computation of the k-string tension in the large N limit of the two dimensional lattice Yang-Mills theory. It is well known that the problems of computing the partition function and the Wilson loop can be both reduced to a unitary matrix ... More
Electromagnetic decays of vector mesons as derived from QCD sum rulesFeb 14 1998We apply the method of QCD sum rules in the presence of external electromagnetic fields $F_{\mu\nu}$ to the problem of the electromagnetic decays of various vector mesons, such as $\rho\to\pi\gamma$, $K^\ast\to K\gamma$ and $\eta'\to\rho\gamma$. The induced ... More
The Sigma_c and Lamda_c magnetic moments from QCD spectral sum rulesAug 20 1997We use QCD spectral sum rules to extract the Sigma_c and Lambda_c magnetic moments. The elctromagnetic field is treated as the external field. We adopt the value of the susceptibility chi=-4.5 GeV^{-2}, which is determined from an overall analysis of ... More
Quantum-memory-assisted entropic uncertainty relation with a single nitrogen-vacancy center in diamondSep 30 2012Dec 22 2012The limitation of simultaneous measurements of noncommuting observables can be eliminated when the measured particle is maximally entangled with a quantum memory. We present a proposal for testing this quantum-memory-assisted entropic uncertainty relation ... More
Quantum Teleportation: from Pure to Mixed States and Standard to OptimalAug 01 2003Teleportation for pure states, mixed states with standard and optimal protocols are introduced and investigated systematically. An explicit equation governing the teleportation of finite dimensional quantum pure states by a generally given non-local entangled ... More
Fluctuations and scaling of inverse participation ratios in random binary resonant compositesMay 09 2002We study the statistics of local field distribution solved by the Green's-function formalism (GFF) [Y. Gu et al., Phys. Rev. B {\bf 59} 12847 (1999)] in the disordered binary resonant composites. For a percolating network, the inverse participation ratios ... More
Learning to Organize Knowledge and Answer Questions with N-Gram MachinesNov 17 2017Mar 03 2019Though deep neural networks have great success in natural language processing, they are limited at more knowledge intensive AI tasks, such as open-domain Question Answering (QA). Existing end-to-end deep QA models need to process the entire text after ... More
Scaling law for the electromagnetic form factors of the protonNov 19 1999The violation of the scaling law for the electric and magnetic form factors of the proton are examined within the cloudy bag model. The suppression of the ratio of the electric and magnetic form factors is natural in the bag model. The pion cloud plays ... More
Non-Darcian flow or fractional derivative ?Jun 04 2018Aug 27 2018Modeling of water and gas flow in low-permeability media is an important topic for a number of engineering such as exploitation of tight gas and disposal of high-level radioactive waste. It has been well documented in the literature that Darcy's linear ... More
Analysis of a selected sample of RR Lyrae stars in LMC from OGLE IIIAug 23 2012A systematic study of RR Lyrae stars is performed based on a selected sample of 655 objects in the Large Magellanic Cloud with observation of long span and numerous measurements by the Optical Gravitational Lensing Experiment III project. The Phase Dispersion ... More
Analysis of the Frequency Offset Effect on Zadoff-Chu Sequence Timing PerformanceJun 13 2014Zadoff-Chu (ZC) sequences have been used as synchronization sequences in modern wireless communication systems, replacing the conventional pseudo-random noise (PN) sequences due to their perfect autocorrelation properties. We first study the ambiguity ... More
Observationally quantified reconnection providing a viable mechanism for active region coronal heatingFeb 17 2018The heating of the Sun's corona has been explained by several different mechanisms including wave dissipation and magnetic reconnection. While both have been shown capable of supplying the requisite power, neither has been used in a quantitative model ... More
Spin-flop transition and magnetic phase diagram in CaCo$_{2}$As$_{2}$ revealed by torque measurementsOct 13 2015The magnetic properties of CaCo$_{2}$As$_{2}$ single crystal was systematically studied by using dc magnetization and magnetic torque measurements. A paramagnetic to antiferromagnetic transition occurs at $T_N$ = 74 K with Co spins being aligned parallel ... More
Friedmann's Equations in All Dimensions and Chebyshev's TheoremSep 11 2014Dec 03 2014This short but systematic work demonstrates a link between Chebyshev's theorem and the explicit integration in cosmological time $t$ and conformal time $\eta$ of the Friedmann equations in all dimensions and with an arbitrary cosmological constant $\Lambda$. ... More
The Period-Luminosity Relations of Red Supergiants in M33 and M31Feb 20 2019Based on previously selected preliminary samples of Red Supergiants (RSGs) in M33 and M31, the foreground stars and luminous Asymptotic Giant Branch stars (AGBs) are further excluded, which leads to the samples of 717 RSGs in M33 and 420 RSGs in M31. ... More
The $Ω$ and $Σ^0$-$Λ$ transition magnetic moments in QCD sum rulesFeb 14 1998The method of QCD sum rules in the presence of external elctromagnetic fields is used to calculate the $\Omega$ magnetic moment $\mu_{\Omega^-}$ and $\Sigma^0$-$\Lambda$ transition magnetic moment $\mu_{\Sigma^0\Lambda}$, with the susceptibilities obtained ... More
Semi-quantum secret sharing using entangled statesJun 10 2009Sep 06 2009Secret sharing is a procedure for sharing a secret among a number of participants such that only the qualified subsets of participants have the ability to reconstruct the secret. Even in the presence of eavesdropping, secret sharing can be achieved when ... More
Newton-MR: Newton's Method Without Smoothness or ConvexitySep 30 2018Establishing global convergence of the classical Newton's method has long been limited to making (strong) convexity assumptions. This has limited the application range of Newton's method in its classical form. Hence, many Newton-type variants have been ... More
Phonon induced two-mode squeezing of nitrogen-vacancy center ensemblesDec 29 2015We propose a potentially practical scheme for realization of two-mode squeezed state with respect to two distant nitrogen-vacancy center ensembles coupled to two interconnected mechanical modes of diamond nanoresonators. By making use of the tunable phonon-spin ... More
A Burgers-KPZ Type Parabolic Equation \par\noindent for the Path-Independence of the Density of the Girsanov TransformationMay 26 2010Let $X_t$ solve the multidimensional It\^o's stochastic differential equations on $\R^d$ $$dX_t=b(t,X_t)dt+\sigma(t,X_t)dB_t$$ where $b:[0,\infty)\times\R^d\to\R^d$ is smooth in its two arguments, $\sigma:[0,\infty)\times\R^d\to\R^d\otimes\R^d$ is smooth ... More
The Period-Luminosity Relations of Red Supergiants in M33 and M31Feb 20 2019Mar 30 2019Based on previously selected preliminary samples of Red Supergiants (RSGs) in M33 and M31, the foreground stars and luminous Asymptotic Giant Branch stars (AGBs) are further excluded, which leads to the samples of 717 RSGs in M33 and 420 RSGs in M31. ... More
New quaternary sequences of even length with optimal auto-correlationMay 16 2017Sequences with low auto-correlation property have been applied in code-division multiple access communication systems, radar and cryptography. Using the inverse Gray mapping, a quaternary sequence of even length $N$ can be obtained from two binary sequences ... More
Bayesian analysis of accumulated damage models in lumber reliabilityJun 14 2017Wood products that are subjected to sustained stress over a period of long duration may weaken, and this effect must be considered in models for the long-term reliability of lumber. The damage accumulation approach has been widely used for this purpose ... More
Statistics of level spacing of geometric resonances in random binary compositesNov 05 2001Nov 13 2001We study the statistics of level spacing of geometric resonances in the disordered binary networks. For a definite concentration $p$ within the interval $[0.2,0.7]$, numerical calculations indicate that the unfolded level spacing distribution $P(t)$ and ... More
Quantum-enhanced microscopy with binary-outcome photon countingJun 10 2016Jan 26 2017Polarized light microscopy using path-entangled $N$-photon states (i.e., the N00N states) has been demonstrated to surpass the shot-noise limit at very low light illumination. However, the microscopy images suffer from divergence of phase sensitivity, ... More
Free boson representation of $DY_{\hbar}(\hat{sl} (M+1|N+1)) $ at level oneMar 21 2001Nov 15 2001We construct a realization of the central extension of super-Yangian double $DY_{\hbar}(\hat{sl}(M+1|N+1))$ at level-one in terms of free boson fields with a continuous parameter.
A new approach for calculating the Nambu-Gorkov propagator in color superconductivity theoryAug 30 2005Sep 03 2005In this article, we propose a new approach to calculate the Nambu-Gorkov propagator intuitively with some linear algebra techniques in presence of the scalar diquark condensates. With the help of energy projective operators, we can obtain relatively simple ... More
Quantum-memory-assisted entropic uncertainty principle under noiseMar 15 2012The measurement outcomes of two incompatible observables on a particle can be precisely predicted when it is maximally entangled with a quantum memory, as quantified recently [Nature Phys. 6, 659 (2010)]. We explore the behavior of the uncertainty relation ... More
Dissipative dynamics of quantum discord under quantum chaotic environmentOct 19 2010We investigate the dissipative dynamics of quantum discord in a decoherence model with two initially entangled qubits in addition to a quantum kicked top. The two qubits are uncoupled during the period of our study and one of them interacts with the quantum ... More
Determination of the Sign of g factors for Conduction Electrons Using Time-resolved Kerr RotationDec 23 2009The knowledge of electron g factor is essential for spin manipulation in the field of spintronics and quantum computing. While there exist technical difficulties in determining the sign of g factor in semiconductors by the established magneto-optical ... More
Chiral and helical $p$-wave superconductivity in doped bilayer BiHSep 17 2018We investigate the superconductivity (SC) driven by correlation effects in electron-doped bilayer BiH near a type-II van Hove singularity (vHS). By functional renormalization group, we find triplet $p$-wave pairing prevails in the interaction parameter ... More