Results for "H. -S. Zhong"

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Implementation of Resistive Type Superconducting Fault Current Limiters in Electrical Grids: Performance Analysis and Measuring of Optimal LocationsAug 04 2015Feb 25 2016In the past few years there has been a significant rise in the short-circuit current levels in transmission and distribution networks, it due to the increasing demands on power and the addition of sources of distributed generations. It leads to the need ... 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
Beam energy dependence of Hanbury-Brown-Twiss radii from a blast-wave modelFeb 04 2016Sep 09 2016The beam energy dependence of correlation lengths (the Hanbury-Brown-Twiss radii) is calculated by using a blast-wave model and the results are comparable with those from RHIC-STAR beam energy scan data as well as the LHC-ALICE measurements. A set of ... More
Remote generation of entanglement for individual atoms via optical fibersMay 29 2008The generation of atomic entanglement is discussed in a system that atoms are trapped in separate cavities which are connected via optical fibers. Two distant atoms can be projected to Bell-state by synchronized turning off the local laser fields and ... More
Addendum to "Energies of zeros of random sections on Riemann surfaces" [arXiv:0705.2000]. Indiana Univ. Math. J. 57 (2008), no. 4, 1753-1780Sep 22 2010This is an addendum to the article of Qi Zhong cited above [arXiv:0705.2000]. It outlines how to apply the main result of that article to calculate the asymptotics of the expected energy of zeros of random polynomials on the Riemann sphere $S^2$ with ... More
$φ$-meson production at forward/backward rapidity in high-energy nuclear collisions from a multiphase transport modelApr 15 2016Within the framework of a multiphase transport model (AMPT), the $\phi$-meson production is studied in d+Au collisions at \srt = {200} GeV in the forward (d-going, $1.2<y<2.2$) and backward (Au-going, $-2.2<y<-1.2$) direction. The AMPT model with string ... More
Nuclear cluster structure effect on elliptic and triangular flows in heavy-ion collisionsFeb 08 2017May 02 2017The initial geometry effect on collective flows, which are inherited from initial projectile structure, is studied in relativistic heavy-ion collisions of $^{12}$C + Au by using a multi-phase transport model (AMPT). Elliptic flow ($v_2$) and triangular ... More
Quantized Anomalous Hall Effect in Magnetic Topological InsulatorsFeb 04 2010The Hall effect, the anomalous Hall effect and the spin Hall effect are fundamental transport processes in solids arising from the Lorentz force and the spin-orbit coupling respectively. The quantum versions of the Hall effect and the spin Hall effect ... More
$Ω$ and $φ$ in Au + Au ~collisions at \srt~= 200 and 11.5 GeV from a multiphase transport modelJun 03 2017Within the framework of a multiphase transport model, we study the production and properties of $\Omega$ and $\phi$ in Au + Au collisions with a new set of parameters for $\sqrt{s_{NN}}$ = 200 GeV and with the original set of parameters for $\sqrt{s_{NN}}$ ... More
Collective flows of $α$-clustering $^{12}\mathrm{C}$ + $^{197}\mathrm{Au}$ by using different flow analysis methodsAug 30 2018Recently the ratio of triangular flow to the elliptic flow ($v_3/v_2$) of hadrons was proposed as a probe to detect the pattern of $\alpha$-clustering $^{12}\mathrm{C}$ in $^{12}\mathrm{C}$+$^{197}\mathrm{Au}$ collisions at relativistic energy by a participant ... More
Study on high order modes in a beta=0.09 srf hwr cavity for 100 ma proton accelerationFeb 13 2017There's presently a growing demand for cw high current proton and deuteron linear accelerators based on superconducting technology to better support various fields of science. Up to now, high order modes (HOMs) studies induced by ion beams with current ... More
Production and ratio of $π$, K, p and $Λ$ in Pb + Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeVDec 13 2013Feb 13 2014The particle production and their ratios for $\pi$, $K$, $p$, and $\Lambda$ are studied in Pb + Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV based on a blast-wave model with thermal equilibrium mechanism. The transverse momentum spectra of the above mentioned ... More
Packet Throughput Analysis of Static and Dynamic TDD in Small Cell NetworksApr 05 2017We develop an analytical framework for the perfor- mance comparison of small cell networks operating under static time division duplexing (S-TDD) and dynamic TDD (D-TDD). While in S-TDD downlink/uplink (DL/UL) cell transmissions are synchronized, in D-TDD ... More
The properties of a large volume-limited sample of face-on low surface brightness disk galaxiesMay 11 2012We select a large volume-limited sample of low surface brightness galaxies (LSBGs, 2,021) to investigate their statistical properties and their differences from high surface brightness galaxies (HSBGs, 3,639) in details. The distributions of stellar masses ... More
Extraction of dihadron-jet correlations with rigorous flow-background subtraction in a multiphase transport modelSep 26 2013Dihadron azimuthal correlations in Au+Au collisions at $\sqrt{S_{NN}}$=200 GeV have been explored by using a multi-phase transport (AMPT) model. In order to obtain the contributions from jet-medium interactions, the combined harmonic flow background is ... More
Longitudinal broadening of near side jets due to parton cascadeJul 25 2008Longitudinal broadening along $\Delta\eta$ direction on near side in two-dimensional ($\Delta\phi \times \Delta\eta$) di-hadron correlation distribution has been studied for central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, within a dynamical multi-phase ... More
Proximal Quasi-Newton for Computationally Intensive L1-regularized M-estimatorsJun 27 2014Jan 23 2015We consider the class of optimization problems arising from computationally intensive L1-regularized M-estimators, where the function or gradient values are very expensive to compute. A particular instance of interest is the L1-regularized MLE for learning ... More
A spectroscopic fingerprint of electron correlation in high temperature superconductorsOct 17 2013The so-called "strange metal phase" [1] of high temperature (high Tc) superconductors remains at the heart of the high Tc mystery. Better experimental data and insightful theoretical work would improve our understanding of this enigmatic phase. In particular, ... More
Charged Black Holes in Colored Lifshitz SpacetimesJan 08 2015Jan 16 2015We consider Einstein gravities coupled to a cosmological constant and $SU(2)$ Yang-Mills fields in four and five dimensions. We find that the theories admit colored Lifshitz solutions with dynamic exponents $z>1$. We study the wave equations of the $SU(2)$ ... More
Nonflow contribution to Dihadron Azimuthal Correlations in 200 GeV/c Au+Au CollisionsDec 02 2012Dihadron azimuthal correlations in 200 GeV/c Au+Au have been simulated by a multi-phase transport (AMPT) model. Contribution from jet-medium interaction to correlation function is obtained by subtracting the combined harmonic flow background from the ... More
Static and Dynamic Hairy Planar Black HolesMay 13 2015We consider Einstein gravity in general dimensions, coupled to a scalar field either minimally or non-minimally, together with a generic scalar potential. By making appropriate choices of the scalar potential, we obtain large classes of new scalar hairy ... More
Thermodynamical First Laws of Black Holes in Quadratically-Extended GravitiesDec 30 2014Feb 13 2015Einstein gravities in general dimensions coupled to a cosmological constant and extended with quadratic curvature invariants admit a variety of black holes that may asymptote to Minkowski, anti-de Sitter or Lifshitz spacetimes. We adopt the Wald formalism ... More
Electrically-Charged Lifshitz Spacetimes, and Hyperscaling ViolationsJan 21 2015Electrically-charged Lifshitz spacetimes are hard to come by. In this paper, we construct a class of such solutions in five dimensional Einstein gravity coupled to Maxwell and $SU(2)$ Yang-Mills fields. The solutions are electrically-charged under the ... More
SU(2)-Colored (A)dS Black Holes in Conformal GravityNov 19 2014Jan 12 2015We consider four-dimensional conformal gravity coupled to the U(1) Maxwell and SU(2) Yang-Mills fields. We study the structure of general black hole solutions carrying five independent parameters: the mass, the electric U(1) and magnetic SU(2) charges, ... More
Quasi-particle dynamics of a strongly correlated polaron metalSep 29 1998We develop a simple diagrammatic low-energy boson exchange strong-coupling model for an antiferromagnetically correlated polaronic metal. Important low-temperature features of such a model are (i) a large polaronic mass enhancement $Z$ and a strongly ... More
Charged Black Holes with Scalar HairJul 15 2015Sep 22 2015We consider a class of Einstein-Maxwell-Dilaton theories, in which the dilaton coupling to the Maxwell field is not the usual single exponential function, but one with a stationary point. The theories admit two charged black holes: one is the Reissner-Nordstr{\o}m ... More
Collision system size dependence of dihadron azimuthal correlations in ultra-relativistic heavy ion collisionsApr 02 2009Apr 22 2010The system size dependence of dihadron azimuthal correlations in ultra-relativistic heavy ion collision is simulated by a multi-phase transport model. The structure of correlation functions and yields of associated particles show clear participant path-length ... More
System-size scan of dihadron azimuthal correlations in ultra-relativistic heavy ion collisionsMay 13 2011System-size dependence of dihadron azimuthal correlations in ultra-relativistic heavy ion collision is simulated by a multi-phase transport model. The structure of correlation functions and yields of associated particles show clear participant path-length ... More
Near-Zero Moment Ferromagnetism in the Semiconductor SmNApr 10 2008Oct 16 2008The magnetic behaviour of SmN has been investigated in stoichiometric polycrystalline films. All samples show ferromagnetic order with Curie temperature (T_c) of 27 +/- 3 K, evidenced by the occurrence of hysteresis below T_c. The ferromagnetic state ... More
An analytic system with a computable hyperbolic sink whose basin of attraction is non-computableSep 03 2014In many applications one is interested in finding the stability regions (basins of attraction) of some stationary states (attractors). In this paper we show that one cannot compute, in general, the basins of attraction of even very regular systems, namely ... More
Low energy and dynamical properties of a single hole in the t-Jz modelJan 16 1995We review in details a recently proposed technique to extract information about dynamical correlation functions of many-body hamiltonians with a few Lanczos iterations and without the limitation of finite size. We apply this technique to understand the ... More
Ferroelectricity driven magnetism at domain walls in LaAlO$_3$/PbTiO$_3$ superlatticesAug 12 2015Charge dipole moment and spin moment rarely coexist in single-phase bulk materials except in some multiferroics. Despite the progress in the past decade, for most multiferroics their magnetoelectric performance remains poor due to the intrinsic exclusion ... More
Franck-Condon Blockade in a Single-Molecule TransistorJun 08 2016We investigate vibron-assisted electron transport in single-molecule transistors containing an individual Fe4 Single-Molecule Magnet. We observe a strong suppression of the tunneling current at low bias in combination with vibron-assisted excitations. ... More
Breaking of the number-of-constituent-quark scaling for identified-particle elliptic flow as a signal of phase change in low-energy data taken at the BNL Relativistic Heavy Ion Collider (RHIC)Jun 29 2009We argue that measurements of identified-particle elliptic flow in a wide energy range could shed light on the possible phase change in high-energy heavy ion collisions at the BNL Relativistic Heavy Ion Collider (RHIC). When the hadronization process ... More
Forward-backward elliptic anisotropy correlation in parton cascadeMar 10 2011A potential experimental probe, forward-backward elliptic anisotropy correlation ($C_{FB} $), has been proposed by Liao and Koch to distinguish the jet and true elliptic flow contribution to the measured elliptic flow ($v_2$) in relativistic heavy-ion ... More
Initial fluctuation effect on harmonic flow in high-energy heavy-ion collisionsMay 26 2011Nov 19 2011Within the framework of a multi-phase transport model, harmonic flows $v_n$ (n = 2, 3 and 4) are investigated for Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV and Pb + Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV. The event-by-event geometry fluctuations ... More
Berry phases and pairing symmetry in Holstein-Hubbard polaron systemsMay 25 1998We study the tunneling dynamics of dopant-induced hole polarons which are self-localized by electron-phonon coupling in a two-dimensional antiferro- magnet. Our treatment is based on a path integral formulation of the adia- batic approximation, combined ... More
$Λ$$Λ$ interactions in finite-density QCD sum rulesSep 11 2006May 30 2007The properties of $\Lambda$-hyperons in pure $\Lambda$ matter are studied with the finite-density QCD sum rule approach. The first order quark and gluon condensates in $\Lambda$ nuclear matter are deduced from the chiral perturbation theory. The sum rule ... More
Structure and evolution of rotationally and tidally distorted starsJul 26 2009This paper aims to study the configuration of two components caused by rotational and tidal distortions in the model of a binary system. The potentials of the two distorted components can be approximated to 2nd-degree harmonics. Furthermore, both the ... More
Non-conventional Superconductors and PercolationJan 19 2011This paper presents a novel theory for understanding the mechanics behind non-conventional superconductors. It presents the hypothesis that non-conventional superconductors are 2D lattices of super-cells and that the superconductivity mechanism involves ... More
Baryon-Strangeness correlations in Parton/Hadron transport model for Au + Au collisions at \sqrt{s_{NN}} = 200 GeVDec 03 2007Baryon-strangeness correlation (C$_{BS}$) has been investigated with a multi-phase transport model (AMPT) in $^{197}$Au + $^{197}$Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. The centrality dependence of C$_{BS}$ is presented within the model, from partonic ... More
Coherent THz emission of Bi_2Sr_2CaCu_2O_8 intrinsic Josephson junction stacks in the hot spot regimeMay 01 2010We report on THz emission measurements and low temperature scanning laser imaging of Bi_2Sr_2CaCu_2O_8 intrinsic Josephson junction stacks. Coherent emission is observed at large dc input power, where a hot spot and a standing wave, formed in the "cold" ... More
Interaction of hot spots and THz waves in Bi_2Sr_2CaCu_2O_8 intrinsic Josephson junction stacks of various geometryMay 12 2010At high enough input power in stacks of Bi_2Sr_2CaCu_2O8 intrinsic Josephson junctions a hot spot (a region heated to above the superconducting transition temperature) coexists with regions still in the superconducting state. In the ``cold'' regions cavity ... More
Reaction plane angle dependence of dihadron azimuthal correlations from a multiphase transport model calculationMar 12 2009Jan 07 2010Dihadron azimuthal angle correlations relative to the reaction plane have been investigated in Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV using a multi-phase transport model (AMPT). Such reaction plane azimuthal angle dependent correlations can shed ... More
On Synergy effect of Ohkawa Current Drive of Electron Cyclotron Waves and Lower Hybrid Current Drive: A New MechanismJul 31 2018A new synergy mechanism between Ohkawa current drive (OKCD) of electron cyclotron (EC) waves and lower hybrid current drive (LHCD) is discovered and discussed. And the methodology to achieve this synergy effect is also introduced. Improvement of OKCD ... More
Computability, Noncomputability, and Hyperbolic SystemsDec 30 2011In this paper we study the computability of the stable and unstable manifolds of a hyperbolic equilibrium point. These manifolds are the essential feature which characterizes a hyperbolic system. We show that (i) locally these manifolds can be computed, ... More
Realization of a Spin liquid in a Two Dimensional Quantum AntiferromagnetAug 03 1993The ground state properties of the two dimensional spatially anisotropic Heisenberg model are investigated by use of field theory mappings, spin-wave expansion and Lanczos technique. Evidence for a disorder transition induced by anisotropy at about $J_y/J_x ... More
Supercurrent transferring through c-axis cuprate Josephson junctions with thick normal-metal-bridgeJun 09 2008Aug 07 2008With simple but exactly solvable model, we investigate the supercurrent transferring through the c-axis cuprate superconductor-normal metal-superconductor junctions with the clean normal metal much thicker than its coherence length. It is shown that the ... More
Weak localization and magnetoconductance of Dirac fermions under charged impurities in grapheneOct 23 2008Dec 28 2008On the basis of self-consistent Born approximation, we present a theory of weak localization of Dirac fermions under finite-range scatters in graphene. With an explicit solution to the ground state of singlet pseudospin Cooperons, we solve the Bethe-Salpeter ... More
Learning Non-overlapping Convolutional Neural Networks with Multiple KernelsNov 08 2017In this paper, we consider parameter recovery for non-overlapping convolutional neural networks (CNNs) with multiple kernels. We show that when the inputs follow Gaussian distribution and the sample size is sufficiently large, the squared loss of such ... More
Absence of broken inversion symmetry phase of electrons in bilayer graphene under charge density fluctuationsApr 05 2012Sep 25 2012On a lattice model, we study the possibility of existence of gapped broken inversion symmetry phase (GBISP) of electrons with long-range Coulomb interaction in bilayer graphene using both self-consistent Hartree-Fock approximation (SCHFA) and the renormalized-ring-diagram ... More
Study of interacting electrons in graphene under the renormalized-ring-diagram approximationMay 18 2007Using the tight-binding model with long-range Coulomb interactions between electrons, we study some of the electronic properties of graphene. The Coulomb interactions are treated with the renormalized-ring-diagram approximation. By self-consistently solving ... More
Integer Quantum Hall Effect of Interacting Electrons in GrapheneOct 16 2016Feb 03 2017By taking into account the charge and spin orderings and the exchange interactions between all the Landau levels, we investigate the integer quantum Hall effect of electrons in graphene using the mean-field theory. At the fillings $\nu = 4n+2$ with $n ... More
Ordered-Current State of Electrons in Bilayer GrapheneJan 16 2013Jul 09 2013Based on the four-band continuum model, we study the ordered-current state (OCS) for electrons in bilayer graphene at the charge neutrality point. The present work resolves the puzzles that (a) the energy gap increases significantly with increasing the ... More
Optimal queue-size scaling in switched networksOct 21 2011Sep 03 2014We consider a switched (queuing) network in which there are constraints on which queues may be served simultaneously; such networks have been used to effectively model input-queued switches and wireless networks. The scheduling policy for such a network ... More
Current orderings of interacting electrons in bilayer grapheneMay 28 2015Jul 10 2015By taking into account the possibility of all the intralayer as well as the interlayer current orderings, we derive an eight-band model for interacting electrons in bilayer graphene. With the numerical solution to the model, we show that only the current ... More
Possible Broken Inversion and Time-Reversal Symmetry State of Electrons in Bilayer GrapheneSep 30 2012Dec 18 2012With the two-band continuum model, we study the broken inversion and time-reversal symmetry state of electrons with finite-range repulsive interactions in bilayer graphene. With the analytical solution to the mean-field Hamiltonian, we obtain the electronic ... More
Hall Coefficient of Dirac Fermions in Graphene under Charged Impurity ScatteringsApr 06 2009With a conserving formalism within the self-consistent Born approximation, we study the Hall conductivity of Dirac fermions in graphene under charged impurity scatterings. The calculated inverse Hall coefficient is compared with the experimental data. ... More
Surface states of gapped electron systems and semi-metalsDec 01 2017Sep 28 2018With a generic lattice model for electrons occupying a semi-infinite crystal with a hard surface, we study the eigenstates of the system with a bulk band gap (or the gap with nodal points). The exact solution to the wave functions of scattering states ... More
Compressibility Instability of Interacting Electrons in Bilayer GrapheneOct 21 2010Jan 10 2011Using the self-consistent Hartree-Fock approximation, we study the compressibility instability of the interacting electrons in bilayer graphene. The chemical potential and the compressibility of the electrons can be significantly altered by an energy ... More
Magnetoconductivity of Dirac fermions in graphene under charged impurity scatteringsApr 12 2009On the basis of self-consistent Born approximation, we solve the Bethe-Salpeter matrix equations for Cooperon propagator of the Dirac fermions in graphene under the charged impurity scatterings and a weak external magnetic field. In the absence of the ... More
Spin-Polarized-Current State of Electrons in Bilayer GrapheneMay 02 2014We propose a model of spin-polarized-current state for electrons in bilayer graphene. The model resolves the puzzles as revealed by experiments that (a) the energy gap $E_{\rm gap}$ of the insulating ground state at the charge neutrality point (CNP) can ... More
Weak Localization of Dirac Fermions in GrapheneJan 24 2008May 14 2008In the presence of the charged impurities, we study the weak localization (WL) effect by evaluating the quantum interference correction (QIC) to the conductivity of Dirac fermions in graphene. With the inelastic scattering rate due to electron-electron ... More
Fluctuation-Exchange Study of Antiferromagnetism in Electron-Doped Cuprate Superconductors with DisorderApr 21 2006May 08 2006On the basis of the Hubbard model, we extend the fluctuation-exchange (FLEX) approach to investigating the properties of antiferromagnetic (AF) phase in electron-doped cuprate superconductors. Furthermore, by incorporating the effect of scatterings due ... More
Electronic structure studies of BaFe2As2 by angle-resolved photoemission spectroscopyMar 05 2009We report high resolution angle-resolved photoemission spectroscopy (ARPES) studies of the electronic structure of BaFe$_2$As$_2$, which is one of the parent compounds of the Fe-pnictide superconductors. ARPES measurements have been performed at 20 K ... More
Integer Quantum Hall Effect of Interacting Electrons in GrapheneOct 16 2016By taking into account the charge and spin orderings and the exchange interactions between all the Landau levels, we investigate the integer quantum Hall effect of electrons in graphene using the mean-field theory. At the fillings $\nu = 4n+2$ with $n ... More
Orbital magnetization of interacting Dirac fermions in grapheneApr 14 2017Sep 02 2017We present a formalism to calculate the orbital magnetization of interacting Dirac fermions under a magnetic field. In this approach, the divergence difficulty is overcome with a special limit of the derivative of the thermodynamic potential with respect ... More
Study of two-dimensional electron systems in the renormalized-ring-diagram approximationOct 09 2006With a super-high-efficient numerical algorithm, we are able to self-consistently calculate the Green's function in the renormalized-ring-diagram approximation for a two-dimensional electron system with long-range Coulomb interactions. The obtained ground-state ... More
Compressibility of Interacting Electrons in Bilayer GrapheneMar 26 2011May 17 2011Using the renormalized-ring-diagram approximation, we study the compressibility of the interacting electrons in bilayer graphene. The compressibility is equivalent to the spin susceptibility apart from a constant factor. The chemical potential and the ... More
Nernst effect of Dirac fermions in graphene under weak magnetic fieldFeb 12 2010The derivation for the transport coefficients of an electron system in the presence of temperature gradient and the electric and magnetic fields are presented. The Nernst conductivity and the transverse thermoelectric power of the Dirac fermions in graphene ... More
Hole dynamics in a quantum antiferromagnet beyond the retraceable path approximationOct 13 1993Dec 08 1993The one-hole spectral weight for two chains and two dimensional lattices is studied numerically using a new method of analysis of the spectral function within the Lanczos iteration scheme: the Lanczos spectra decoding method. This technique is applied ... More
Decoupled Pairing Amplitude and Electronic Coherence in Iron-Based SuperconductorsApr 20 2018Here we use angle-resolved photoemission spectroscopy to study superconductivity that emerges in two extreme cases, from a Fermi liquid phase (LiFeAs) and an incoherent bad-metal phase (FeTe0.55Se0.45). We find that although the electronic coherence can ... More
Electronically Guided Self Assembly within Quantum CorralsSep 06 2012A grand challenge of nanoscience is to master the control of structure and properties in order to go beyond present day functionality. The creation of nanostructures via atom manipulation by means of a scanning probe represents one of the great achievements ... More
Orbital character variation of the Fermi surface and doping dependent changes of the dimensionality in BaFe2-xCoxAs2 from angle-resolved photoemission spectroscopyOct 01 2009From a combination of high resolution angle-resolved photoemission spectroscopy and density functional calculations, we show that BaFe2As2 possesses essentially two-dimensional electronic states, with a strong change of orbital character of two of the ... More
The properties of a large sample of low surface brightness galaxies from SDSSOct 11 2009A large sample of low surface brightness (LSB) disk galaxies is selected from SDSS with B-band central surface brightness mu_0(B) from 22 to 24.5 mag arcsec^(-2). Some of their properties are studied, such as magnitudes, surface brightness, scalelengths, ... More
Carbon Kagome lattice and orbital frustration-induced metal-insulator transition for optoelectronicsOct 19 2015A three-dimensional elemental carbon Kagome lattice (CKL), made of only fourfold coordinated carbon atoms, is proposed based on first-principles calculations. Despite the existence of 60{\deg} bond angles in the triangle rings, widely perceived to be ... More
Starfish-shaped Cooper pairs with ultrashort antinodal length scales in cuprate superconductorsSep 06 2018Cooper pairs of mutually attracting electrons form the building blocks of superconductivity. Thirty years after the discovery of high-temperature superconductivity in cuprates, many details of the pairs remain unknown, including their size and shape. ... More
Inelastic Neutron Scattering Study of Mn_12-AcetateSep 08 1998Sep 18 1998We report zero-field inelastic neutron scattering experiments on a deuterated powder sample of Mn12-Acetate consisting of a large number of nominally identical spin-10 magnetic clusters. Our resolution enables us to see a series of peaks corresponding ... More
A large sample of low surface brightness disk galaxies from the SDSS. I: The sample and the stellar populationsSep 18 2008We present the properties of a large sample (12,282) of nearly face-on low surface brightness (LSB) disk galaxies selected from the main galaxy sample of SDSS-DR4. These properties include B-band central surface brightness mu_0(B), scale lengths h, integrated ... More
A large sample of low surface brightness disc galaxies from the SDSS- II. Metallicities in surface brightness binsApr 21 2010We study the spectroscopic properties of a large sample of Low Surface Brightness galaxies (LSBGs) (with B-band central surface brightness mu0(B)>22 mag arcsec^(-2)) selected from the Sloan Digital Sky Survey Data Release 4 (SDSS-DR4) main galaxy sample. ... More
The 2016 Reactivations of Main-Belt Comets 238P/Read and 288P/(300163) 2006 VW139Sep 27 2018We report observations of the reactivations of main-belt comets 238P/Read and 288P/(300163) 2006 VW139, that also track the evolution of each object's activity over several months in 2016 and 2017. We additionally identify and analyze archival SDSS data ... More
Reconfigurable on-chip entangled sources based on lithium-niobate waveguide circuitsApr 01 2014Integrated quantum optics becomes a consequent tendency towards practical quantum information processing. Here, we report the on-chip generation and manipulation of photonic entanglement based on reconfigurable lithium niobate waveguide circuits. By introducing ... More
Coherent population transfer between weakly-coupled states in a ladder-type superconducting qutritAug 08 2015Stimulated Raman adiabatic passage (STIRAP) offers significant advantages for coherent population transfer between un- or weakly-coupled states and has the potential of realizing efficient quantum gate, qubit entanglement, and quantum information transfer. ... More
Isomerism in the "south-east" of $^{132}$Sn and a predicted neutron-decaying isomer in $^{129}$PdSep 09 2016Excited states in neutron-rich nuclei located south-east of $^{132}$Sn are investigated by shell-model calculations. A new shell-model Hamiltonian is constructed for the present study. The proton-proton and neutron-neutron interactions of the Hamiltonian ... More
Transverse momentum and pseudorapidity dependences of $'\bm{Mach-like}'$ correlations for central Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeVJun 26 2007The transverse momentum and pseudorapidity dependences of partonic {`\it{Mach-like}'} shock wave have been studied by using a multi-phase transport model (AMPT) with both partonic and hadronic interactions. The splitting parameter $D$, i.e. half distance ... More
Time evolution of Mach-like structure in a partonic transport modelOct 24 2006The time evolution of Mach-like structure (the splitting of the away side peak in di-hadron $\Delta\phi$ correlation) is presented in the framework of a dynamical partonic transport model. With the increasing of the lifetime of partonic matter, Mach-like ... More
Three-Particle Correlations from Parton Cascades in Au+Au CollisionsAug 22 2006Feb 15 2007We present a study of three-particle correlations among a trigger particle and two associated particles in Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV using a multi-phase transport model (AMPT) with both partonic and hadronic interactions. We found ... More
On the momentum-dependence of $K^{-}$-nuclear potentialsJan 22 2007May 09 2007The momentum dependent $K^{-}$-nucleus optical potentials are obtained based on the relativistic mean-field theory. By considering the quarks coordinates of $K^-$ meson, we introduced a momentum-dependent "form factor" to modify the coupling vertexes. ... More
Multi-deformed Configurations and Shape Coexistence for Superheavy ElementsOct 20 2004We use the considered axial deformed relativistic mean field theory to perform systematical calculations for Z=112 and 104 isotopic chains with force parameters NL3, NL-SH and NL-Z2 sets. Three deformed chains (oblate, moderate prolate and super-deformed ... More
3-D mapping of diffuse scattering in PZN-xPTApr 26 2004Apr 28 2004High energy (67 keV) x-ray diffuse scattering measurements were performed on single crystals of Pb(Zn$_{1/3}$Nb$_{2/3}$)O$_3$-$x$PbTiO$_3$ (PZN-$x$PT). A novel technique was developed to map out the diffuse scattering distribution in all three dimensions ... More
Heterodyne and adaptive phase measurements on states of fixed mean photon numberDec 11 1998Sep 19 2002The standard technique for measuring the phase of a single mode field is heterodyne detection. Such a measurement may have an uncertainty far above the intrinsic quantum phase uncertainty of the state. Recently it has been shown [H. M. Wiseman and R. ... More
Some Calculations for Cold Fusion Superheavy ElementsOct 18 2004The Q value and optimal exciting energy of the hypothetical superheavy nuclei in cold fusion reaction are calculated with relativistic mean field model and semiemperical shell model mass equation(SSME) and the validity of the two models is tested. The ... More
Electric-field control of oxygen vacancy and magnetic phase transition in cobaltite/manganite bilayerOct 31 2017Manipulation of oxygen vacancies (V_O) in single oxide layers by varying the electric field can result in significant modulation of the ground state. However, in many oxide multilayers with strong application potentials, e.g. ferroelectric tunnel junctions ... More
The $ΣΣ$ interactions in finite-density QCD sum rulesNov 07 2007Mar 26 2008The properties of $\Sigma$-hyperons in pure $\Sigma$ matter are studied with the finite-density quantum chromo-dynamics sum rule (QCDSR) approach. The $\Sigma\Sigma$ nuclear potential $U_\Sigma$ is most likely strongly attractive, it could be about -50 ... More
Violating Bell's inequality with remotely-connected superconducting qubitsAug 09 2018Oct 17 2018Quantum communication relies on the efficient generation of entanglement between remote quantum nodes, due to entanglement's key role in achieving and verifying secure communications. Remote entanglement has been realized using a number of different probabilistic ... More
Phonon-mediated quantum state transfer and remote qubit entanglementMar 13 2019Phonons, and in particular surface acoustic wave phonons, have been proposed as a means to coherently couple distant solid-state quantum systems. Recent experiments have shown that superconducting qubits can control and detect individual phonons in a ... More
Ferroelectric switched all-metallic-oxide $p$-$n$ junctionsNov 19 2006We report the first formation of the metallic $p$-$n$ junctions, the ferroelectric (Ba,Sr)TiO$_3$ (BST) switched optimally electron-doped ($n$-type) metallic T'-phase superconductor, (La,Ce)$_2$CuO$_4$ (LCCO), and hole-doped ($p$-type) metallic CMR manganite ... More
On Quasi-Hopf superalgebrasNov 10 1998Nov 19 1998In this work we investigate several important aspects of the structure theory of the recently introduced quasi-Hopf superalgebras (QHSAs), which play a fundamental role in knot theory and integrable systems. In particular we introduce the opposite structure ... More
Atomic and electronic structure of ideal and reconstructed $α$-Sn (111) surfaceDec 07 1995We have carried out an ab-initio study of $\alpha$-Sn (111), with the aim of predicting and understanding its structure, reconstructions, and electronic states. We consider a variety of structural possibilities, and optimize them by moving atoms according ... More
Streaks to Rings to Vortex Grids: Generic Patterns in Transient Convective Spin-UpJan 24 2010Jun 28 2010We observe the transient formation of a ringed pattern state during spin-up of an evaporating fluid on a time scale of order a few Ekman spin-up times. The ringed state is probed using infrared thermometry and particle image velocimetry and it is demonstrated ... More