Results for "Fu-Sheng Yu"

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$bs\bar u\bar d$ : A Promising Detectable TetraquarkSep 08 2017We propose to investigate a particle with four different flavors, $bs\bar u\bar d$, which is a promising detectable tetraquark state. Its $BK$ threshold, 5773 MeV, is 270 MeV higher than the $B_s\pi$ threshold of $bd\bar u\bar s$ and $bu\bar d\bar s$, ... More
Deterministic entanglement purification and complete nonlocal Bell-state analysis with hyperentanglementDec 01 2009Mar 12 2010Entanglement purification is a very important element for long-distance quantum communication. Different from all the existing entanglement purification protocols (EPPs) in which two parties can only obtain some quantum systems in a mixed entangled state ... More
The noncommutative QED threshold energy versus the optimum collision energySep 15 2003Feb 10 2004Moller Scattering and Bhabha Scattering on noncommutative space-time is restudied. It is shown that the noncommutative correction of scattering cross sections is not monotonous enhancement with the total energy of colliding electrons, there is an optimum ... More
Near Mass Degeneracy in the Scalar Meson Sector: Implications for $B^*_{(s)0}$ and $B'_{(s)1}$ MesonsApr 14 2014Jun 10 2014The empirical observation of near degeneracy of scalar mesons above 1 GeV, namely, the mass of the strange-flavor scalar meson is similar to that of the non-strange one, is at variance with the naive expectation of the quark model. Qualitatively, the ... More
Summary of WG7 at CKM 2018: "Mixing and $CP$ violation in the $D$ system: $x_D$, $y_D$, $|q/p|_D$, $φ_D$, and direct $CP$ violation in $D$ decays"Jan 23 2019Feb 07 2019The "10$^{\rm th}$ International Workshop on the CKM Unitary Triangle" took place at the University of Heidelberg on September 17$^{\rm th}$-21$^{\rm st}$, 2018. In this write-up, we summarize the material discussed at the workshop by the Working Group ... More
Masses of Scalar and Axial-Vector B Mesons RevisitedApr 04 2017Oct 08 2017The SU(3) quark model encounters a great challenge in describing even-parity mesons. Specifically, the $q\bar q$ quark model has difficulties in understanding the light scalar mesons below 1 GeV, scalar and axial-vector charmed mesons and $1^+$ charmonium-like ... More
Efficient quantum entanglement distribution over an arbitrary collective-noise channelMay 01 2010We present an efficient quantum entanglement distribution over an arbitrary collective-noise channel. The basic idea in the present scheme is that two parties in quantum communication first transmit the entangled states in the frequency degree of freedom ... More
Nonlocal entanglement concentration scheme for partially entangled multipartite systems with nonlinear opticsJun 01 2008Aug 20 2009We present a nonlocal entanglement concentration scheme for reconstructing some maximally entangled multipartite states from partially entangled ones by exploiting cross-Kerr nonlinearities to distinguish the parity of two polarization photons. Compared ... More
Efficient polarization entanglement purification based on parametric down-conversion sources with cross-Kerr nonlinearityMay 01 2008We present a way for entanglement purification based on two parametric down-conversion (PDC) sources with cross-Kerr nonlinearities. It is comprised of two processes. The first one is a primary entanglement purification protocol for PDC sources with nondestructive ... More
Efficient polarization entanglement concentration for electrons with charge detectionNov 01 2008May 07 2009We present an entanglement concentration protocol for electrons based on their spins and their charges. The combination of an electronic polarizing beam splitter and a charge detector functions as a parity check device for two electrons, with which the ... More
Single-photon entanglement concentration for long-distance quantum communicationJul 01 2009Jan 12 2010We present a single-photon entanglement concentration protocol for long-distance quantum communication with quantum nondemolition detector. It is the first concentration protocol for single-photon entangled states and it dose not require the two parties ... More
Efficient and economic five-party quantum state sharing of an arbitrary m-qubit stateMay 01 2010We present an efficient and economic scheme for five-party quantum state sharing of an arbitrary m-qubit state with $2m$ three-particle Greenberger-Horne-Zeilinger (GHZ) states and three-particle GHZ-state measurements. It is more convenient than other ... More
Embeddings of fields in simple algebras over global fieldsAug 03 2011Mar 02 2013Let $F$ be a global field, $A$ a central simple algebra over $F$ and $K$ a finite (separable or not) field extension of $F$ with degree $[K:F]$ dividing the degree of $A$ over $F$. An embedding of $K$ in $A$ over $F$ exists implies an embedding exists ... More
Heavy neutrino searches at future $Z$-factoriesMar 06 2019We analyze the capacity of future $Z$-factories to search for heavy neutrinos with their mass from 10 to 91 GeV. The heavy neutrinos $N$ are considered to be produced via the process $e^+e^-\to Z\to \nu N$ and to decay into an electron or muon and two ... More
Complete hyperentangled-Bell-state analysis for quantum communicationMar 01 2011It is impossible to unambiguously distinguish the four Bell states in polarization, resorting to linear optical elements only. Recently, the hyperentangled Bell state, the simultaneous entanglement in more than one degree of freedom, has been used to ... More
Strange Axial-vector Mesons in D Meson DecaysJan 29 2018The nature of strange axial-vector mesons are not well understood and can be investigated in $D$ meson decays. In this work, it is found that the experimental data of $D^0\rightarrow K^\pm K^\mp_1(1270)(\to \rho K \,\,\text{or}\,\,K^{*}\pi)$ in the $D^0\to ... More
$CP$ violation in charmed hadron decays into neutral kaonsAug 28 2017We find a new $CP$ violating effect in charmed hadron decays into neutral kaons, which is induced by the interference between the Cabibbo-favored and doubly Cabibbo-suppressed amplitudes with the $K^{0}-\overline K^{0}$ mixing. It is estimated to be of ... More
Nonleptonic two-body decays of charmed mesonsJan 25 2011Oct 27 2011Nonleptonic decays of charmed mesons into two pseudoscalar mesons or one pseudoscalar meson and one vector meson are studied on the basis of a generalized factorization method considering the resonance effects in the pole model for the annihilation contributions. ... More
Multipartite entanglement purification with quantum nondemolition detectorsOct 01 2008Sep 04 2009We present a scheme for multipartite entanglement purification of quantum systems in a Greenberger-Horne-Zeilinger state with quantum nondemolition detectors (QNDs). This scheme does not require the controlled-not gates which cannot be implemented perfectly ... More
Efficient faithful qubit transmission with frequency degree of freedomJul 01 2009Aug 16 2009We propose an efficient faithful polarization-state transmission scheme by utilizing frequency degree of freedom besides polarization and an additional qubit prepared in a fixed polarization. An arbitrary single-photon polarization state is protected ... More
Fault tolerant quantum key distribution based on quantum dense coding with collective noiseApr 01 2009Jan 12 2010We present two robust quantum key distribution protocols against two kinds of collective noise, following some ideas in quantum dense coding. Three-qubit entangled states are used as quantum information carriers, two of which forming the logical qubit ... More
$D^0$-$\overline{D}^0$ mixing parameter $y$ in the factorization-assisted topological-amplitude approachMay 20 2017May 09 2018We calculate the $D^0$-$\overline{D}^0$ mixing parameter $y$ in the factorization-assisted topological-amplitude (FAT) approach, considering contributions from $D^{0}\to PP$, $PV$, and $VV$ modes, where $P$ ($V$) stands for a pseudoscalar (vector) meson. ... More
$K_{S}^{0}-K_{L}^{0}$ asymmetries in $D$-meson decaysJan 25 2017Apr 23 2017The $K_{S}^{0}-K_{L}^{0}$ asymmetries in the $D$ meson decays, induced by the interference between the Cabibbo-favored and the doubly Cabibbo-suppressed amplitudes, can help to understand the dynamics of charm decays. All possible processes of two-body ... More
Doubly-Heavy Baryon Weak Decays: $Ξ_{bc}^{0}\to pK^{-}$ and $Ξ_{cc}^{+}\to Σ_{c}^{++}(2520)K^{-}$Jan 12 2017Feb 17 2017Doubly-heavy baryons, with two heavy and one light quarks, are expected to exist in QCD and their masses have been predicted in the quark model. However their existence is not well established so far in experiment. In this work, we explore the possibility ... More
Localization of $q-$form fields on $AdS_{p+1}$ branesDec 10 2013Jun 13 2014In this paper, we investigate localization of a free massless $q-$form bulk field on thin and thick $AdS_{p+1}$ branes with codimension one. It is found that the zero mode of the $q-$form field with $q>(p+2)/2$ can be localized on the thin negative tension ... More
Modified entanglement purification scheme with doubly entangled photon stateOct 11 2008Recently Xiao et al. proposed a scheme for entanglement purification based on doubly entangled photon states (Phys. Rev. A 77(2008) 042315). We modify their scheme for improving the efficiency of entanglement purification. This modified scheme contains ... More
Analysis of Two-body Charmed $B$ Meson Decays in Factorization-Assisted Topological-Amplitude ApproachSep 14 2015Within the factorization-assisted topological-amplitude approach, we study the two-body charmed $B$ meson decays $B_{u,d,s} \to D^{(*)}M$, with $M$ denoting a light pseudoscalar (or vector) meson. The meson decay constants and transition form factors ... More
Complete analysis for arbitrary concatenated Greenberger-Horne-Zeilinger state assisted with photonic Faraday rotationNov 17 2015The concatenated Greenberger-Horne-Zeilinger (C-GHZ) state has great potential application in the future quantum network, for it is robust to the decoherence in a noisy environment. In the paper, we propose a complete C-GHZ state analysis protocol with ... More
Biharmonic hypersurfaces with three distinct principal curvatures in spheresDec 18 2014Dec 19 2014We obtain a complete classification of proper biharmonic hypersurfaces with at most three distinct principal curvatures in sphere spaces with arbitrary dimension. Precisely, together with known results of Balmu\c{s}-Montaldo-Oniciuc, we prove that compact ... More
Biharmonic hypersurfaces with three distinct principal curvatures in Euclidean spaceDec 04 2014Dec 18 2014The well known Chen's conjecture on biharmonic submanifolds states that a biharmonic submanifold in a Euclidean space is a minimal one ([10-13, 16, 18-21, 8]). For the case of hypersurfaces, we know that Chen's conjecture is true for biharmonic surfaces ... More
Discovery Potentials of Doubly Charmed BaryonsMar 27 2017Mar 19 2018The existence of doubly heavy flavor baryons has not been well established experimentally so far. In this Letter we systematically investigate the weak decays of the doubly charmed baryons, $\Xi_{cc}^{++}$ and $\Xi_{cc}^{+}$, which would be helpful for ... More
Noncommutative QED corrections to process $e^+e^-\toμ^+μ^-γ$ at linear collider energiesMar 27 2007The cross section for process $e^+e^-\to\mu^+\mu^-\gamma$ in the framework of noncommutative quantum electrodynamics(NC QED) is studied. It is shown that the NC correction of scattering sections is not monotonous enhancement with total energy of colliding ... More
Experimental observation of three-photon superbunching in linear optical systemSep 10 2018Three-photon superbunching is experimentally observed with the recently proposed superbunching pseudothermal light. To the best of our knowledge, it is the first time that three-photon superbunching is observed in linear optical system. From the quantum ... More
Scalable Self-Adaptive Synchronous Triggering System in Superconducting Quantum ComputingJun 11 2018Superconducting quantum computers (SQC) can solve some specific problems which are deeply believed to be intractable for classical computers. The control and measurement of qubits can't go on without the synchronous operation of digital-to-analog converters ... More
Measurement of the liquid scintillator nonlinear energy response to electronMar 12 2014Nonlinearity of the liquid scintillator energy response is a key to measuring the neutrino energy spectrum in reactor neutrino experiments such as Daya Bay and JUNO. We measured in laboratory the nonlinearity of the Linear Alkyl Benzene based liquid scintillator, ... More
High Performance and Scalable AWG for Superconducting Quantum ComputingJun 10 2018Superconducting quantum computer is manufactured based on semiconductor process which makes qubits integration possible. At the same time, this kind of qubit exhibits high performance fidelity, de-coherence time, scalability and requires a programmable ... More
State complexity of union and intersection combined with star and reversalJun 18 2010In this paper, we study the state complexities of union and intersection combined with star and reversal, respectively. We obtain the state complexities of these combined operations on regular languages and show that they are less than the mathematical ... More
Evolving hypersurfaces by their mean curvature in the background manifold evolving by Ricci flowJul 19 2014Aug 02 2014We consider the problem of deforming a one-parameter family of hypersurfaces immersed into closed Riemannian manifolds with positive curvature operator. The hypersurface in this family satisfies mean curvature flow while the ambient metric satisfying ... More
Silicon nitride metalenses for unpolarized high-NA visible imagingSep 02 2017As one of nanoscale planar structures, metasurface has shown excellent superiorities on manipulating light intensity, phase and/or polarization with specially designed nanoposts pattern. It allows to miniature a bulky optical lens into the chip-size metalens ... More
Chow's theorem for semi-abelian varieties and bounds for splitting fields of algebraic toriJun 04 2019A theorem of Chow concerns homomorphisms of two abelian varieties under a primary field extension base change. In this paper we generalize Chow's theorem to semi-abelian varieties. This contributes to different proofs of a well-known result that every ... More
Irreducibility of the Siegel moduli spaces with parahoric level structureFeb 23 2004Apr 10 2006We prove that the moduli space ${\mathcal A}_{g,\Gamma_0(p)}\otimes \bar {\mathbb F}_p$ of principally polarized abelian varieties of dimension $g$ with a $\Gamma_0(p)$-level structure in characteristic $p$ has $2^g$ irreducible components.The cases of ... More
Human Action Recognition and Prediction: A SurveyJun 28 2018Jul 02 2018Derived from rapid advances in computer vision and machine learning, video analysis tasks have been moving from inferring the present state to predicting the future state. Vision-based action recognition and prediction from videos are such tasks, where ... More
Extension formulae on almost complex manifoldsMar 23 2019Apr 15 2019We give the extension formulae on almost complex manifolds and give decompositions of the extension formulae. As an application, we study the $(n,0)$-Dolbeault cohomology group on almost complex manifolds under some conditions.
Quantum phase transition in a three-level atom-molecule systemDec 20 2012We adopt a three-level bosonic model to investigate the quantum phase transition in an ultracold atom-molecule conversion system which includes one atomic mode and two molecular modes. Through thoroughly exploring the properties of energy level structure, ... More
Numerical Study of Quantum Hall Bilayers at Total Filling $ν_T=1$: A New Phase at Intermediate Layer DistancesMar 24 2017Sep 26 2017We study the phase diagram of quantum Hall bilayer systems with total filing $\nu_T=1/2+1/2$ of the lowest Landau level as a function of layer distances $d$. Based on numerical exact diagonalization calculations, we obtain three distinct phases, including ... More
Labor Contract Law -An Economic ViewFeb 13 2017China's new labor law -- Labor Contract Law has been put into practice for over one year. Since its inception, debates have been whirling around the nation, if not the world. In this article, we take an economic perspective to analyze the possible impact ... More
Mass formula of division algebras over global function fieldsFeb 27 2011Jun 09 2011In this paper we give two proofs of the mass formula for definite central division algebras over global function fields, due to Denert and Van Geel. The first proof is based on a calculation of Tamagawa measures. The second proof is based on analytic ... More
Stable attosecond electron bunches from a nanofiber driven by Laguerre-Gaussian lasersApr 24 2018Generation of attosecond bunches of energetic electrons offers significant potential from ultrafast physics to novel radiation sources. However, it is still a great challenge to stably produce such electron beams with lasers, since the typical sub-femtosecond ... More
Computing Supply Function Equilibria via Spline ApproximationsFeb 03 2015Feb 04 2015The supply function equilibrium (SFE) is a model for competition in markets where each firm offers a schedule of prices and quantities to face demand uncertainty, and has been successfully applied to wholesale electricity markets. However, characterizing ... More
Optimal concentrating arbitrary partially entangled W states with linear opticsJun 16 2013Nov 03 2013We propose two optimal entanglement concentration protocols (ECPs) for arbitrary single-photon multi-mode W state and multi-photon polarization W state, respectively. In both ECPs, we only require one pair of partially entangled W state, and do not consume ... More
Distilling and protecting the single-photon entangled stateNov 04 2014We propose two efficient entanglement concentration protocols (ECPs) for arbitrary less-entangled single-photon entanglement (SPE). Different from all the previous ECPs, these protocols not only can obtain the maximally SPE, but also can protect the single ... More
Distilling single-photon entanglement from photon loss and decoherenceJun 07 2013Jun 11 2013Single-photon entanglement may be the simplest type of entanglement but it is of vice importance in quantum communication. Here we present a practical protocol for distilling the single-photon entanglement from both photon loss and decoherence. With the ... More
Blind quantum computation with noise environmentSep 28 2016Blind quantum computation (BQC) is a new type of quantum computation model. BQC allows a client (Alice) who does not have enough sophisticated technology and knowledge to perform universal quantum computation and resorts a remote quantum computation server ... More
The heralded amplification for the single-photon multi-mode W state of the time-bin qubitJun 01 2016We put forward an effective amplification protocol for protecting the single-photon multi-mode W state of the time-bin qubit. The protocol only relies on linear optical elements, such as the $50:50$ beam splitters, variable beam splitters with the transmission ... More
Blind quantum machine learningJul 26 2015Blind quantum machine learning (BQML) enables a classical client with little quantum technology to delegate a remote quantum machine learning to the quantum server in such a approach that the privacy data is preserved. Here we propose the first BQML protocol ... More
Efficient hybrid entanglement concentration for quantum communicationsJul 23 2013We present two groups of practical entanglement concentration protocols (ECPs) for optical hybrid entangled state (HES). In the first group, it contains two ECPs and both ECPs do not need to know the initial coefficients of the less-entangled state. The ... More
The supersingular locus in Siegel modular varieties with Iwahori level structureJul 08 2008Nov 23 2009We study moduli spaces of abelian varieties in positive characteristic, more specifically the moduli space of principally polarized abelian varieties on the one hand, and the analogous space with Iwahori type level structure, on the other hand. We investigate ... More
Complete classification of biconservative hypersurfaces with diagonalizable shape operator in Minkowski 4-spaceFeb 19 2015In this paper, we study biconservative hypersurfaces in the four dimensional Minkowski space $\mathbb E^4_1$. We give the complete explicit classification of biconservative hypersurfaces with diagonalizable shape operator in $\mathbb E^4_1$.
On superspecial abelian surfaces and type numbers of totally definite quaternion algebrasSep 12 2018In this paper we determine the number of endomorphism rings of superspecial abelian surfaces over a field $\mathbb{F}_q$ of odd degree over $\mathbb{F}_p$ in the isogeny class corresponding to the Weil $q$-number $\pm\sqrt{q}$. This extends earlier works ... More
$δ$(3)-ideal null 2-type hypersurfaces in Euclidean spacesDec 22 2014In the theory of finite type submanifolds, null 2-type submanifolds are the most simple ones, besides 1-type submanifolds (cf. e.g., [3, 12]). In particular, the classification problems of null 2-type hypersurfaces are quite interesting and of fundamentally ... More
Supersingular Kottwitz-Rapoport strata and Deligne-Lusztig varietiesFeb 22 2008Jul 10 2008We investigate Siegel modular varieties in positive characteristic with Iwahori level structure. On these spaces, we have the Newton stratification, and the Kottwitz-Rapoport stratification; one would like to understand how these stratifications are related ... More
EasyConvPooling: Random Pooling with Easy Convolution for Accelerating Training and TestingJun 05 2018Convolution operations dominate the overall execution time of Convolutional Neural Networks (CNNs). This paper proposes an easy yet efficient technique for both Convolutional Neural Network training and testing. The conventional convolution and pooling ... More
Efficient $N$-particle $W$ state concentration with different parity check gatesApr 06 2012We present an universal way to concentrate an arbitrary $N$-particle less-entangled $W$ state into a maximally entangled $W$ state with different parity check gates. It comprises two protocols. The first protocol is based on the linear optical elements ... More
DBI-CurvatonJun 14 2008Jun 20 2008In this paper, we study a curvaton model described by a Dirac-Born-Infeld-like action. We calculate the spectrum of curvature perturbation induced by DBI-curvaton and estimate its non-Gaussianity. We find that in the limit of low sound speed the amplitude ... More
Optimal Sound Absorbing StructuresSep 30 2016Causal nature of the acoustic response, for any materials or structures, dictates an inequality that relates the absorption spectrum of the sample to its thickness. We present a general recipe for constructing sound-absorbing structures that can attain ... More
Anisotropic emission of direct photons and thermal dileptons from Au+Au collisions at $\sqrt{s_{NN}}=200$~GeV with EPOS3Jul 09 2016Electromagnetic probes such as direct photons and dileptons are crucial to study the properties of a Quark-Gluon Plasma (QGP) created in heavy ion collisions. Based on the (3+1)-dimensional event-by-event viscous hydrodynamic model EPOS 3.102, we calculated ... More
Topological phases protected by point group symmetryApr 27 2016Apr 04 2017We consider symmetry protected topological (SPT) phases with crystalline point group symmetry, dubbed point group SPT (pgSPT) phases. We show that such phases can be understood in terms of lower-dimensional topological phases with on-site symmetry, and ... More
Efficient two-step entanglement concentration for arbitrary W statesFeb 14 2012We present two two-step practical entanglement concentration protocols (ECPs) for concentrating an arbitrary three-particle less-entangled W state into a maximally entangled W state assisted with single photons. The first protocol uses the linear optics ... More
Test elements, retracts and automorphic orbitsJul 07 2008Let $A_2$ be a free associative or polynomial algebra of rank two over a field $K$ of characteristic zero. Based on the degree estimate of Makar-Limanov and J.-T.Yu, we prove: 1) An element $p \in A_2$ is a test element if $p$ does not belong to any proper ... More
Experimental Single-Photon Transmission from Satellite to EarthJun 04 2013Free-space quantum communication with satellites opens a promising avenue for global secure quantum network and large-scale test of quantum foundations. Recently, numerous experimental efforts have been carried out towards this ambitious goal. However, ... More
Polarized Lepton-Nucleon Elastic Scattering and a Search for a Light Scalar BosonJul 15 2015Lepton-nucleon elastic scattering, using the one-photon and one-scalar-boson exchange mechanisms considering all possible polarizations, is used to study searches for a new scalar boson and suggest new measurements of the nucleon form factors. A new light ... More
Transition Complexity of Incomplete DFAsAug 10 2010In this paper, we consider the transition complexity of regular languages based on the incomplete deterministic finite automata. A number of results on Boolean operations have been obtained. It is shown that the transition complexity results for union ... More
Discrete States in Light-Like Linear Dilaton BackgroundNov 18 2007Nov 25 2007We study the spectrum of bosonic strings in the light-like linear dilaton background and find discrete states. These are physical states which exist only at specific values of momentum. All except one discrete states generate spacetime symmetries. The ... More
Holographic Model of Dual Superconductor for Quark ConfinementJul 27 2016We show that a hairy black hole solution can provide a holographically dual description of quark confinement. There exists a one-parameter sensible metric which receives the backreaction of matter contents in the holographic action, where the scalar and ... More
On Relations among Fourier Coefficients and Sum-functionsNov 13 2006We generalize five theorems of Leindler on the relations among Fourier coefficients and sum-functions under the more general $NBV$ condition.
Complete Study of Hadroproduction of a $Υ$ Meson Associated with a Prompt $J/ψ$May 10 2016Aug 07 2016We present the first complete study of $\Upsilon$ and prompt $J/\psi$ production from single-parton scattering, including the complete $\mathcal{O}(\alpha_S^6)$ color-singlet contribution, the $\mathcal{O}(\alpha_S^2\alpha^2)$ electroweak contribution, ... More
Optimal control for fast and high-fidelity quantum gates in coupled superconducting flux qubitsJun 30 2014We apply the quantum optimal control theory based on the Krotov method to implement single-qubit $X$ and $Z$ gates and two-qubit CNOT gates for inductively coupled superconducting flux qubits with fixed qubit transition frequencies and fixed off-diagonal ... More
Biholomorphic Convex Mappings of Order alpha on the Unit Ball in Hilbert SpacesJan 21 2012In this paper, we first introduce the concept of biholomorphic convex mapping of order alpha on the unit ball B in a complex Hilbert space X. Next we provide some sufficient conditions that a locally biholomorphic mapping f is a biholomorphic convex mapping ... More
Local Color Contrastive Descriptor for Image ClassificationAug 03 2015Image representation and classification are two fundamental tasks towards multimedia content retrieval and understanding. The idea that shape and texture information (e.g. edge or orientation) are the key features for visual representation is ingrained ... More
Nonlinear preheating with nonminimally coupled scalar fields in the Starobinsky modelJun 03 2019We study the preheating after inflation in the Starobinsky model with a nonminimally coupled scalar field $\chi$. Using the lattice simulation, we analyze the rescattering between the $\chi$ particles and the inflaton condensate, and the backreaction ... More
A parametrization for the growth index of linear matter perturbationsMay 21 2009Jun 13 2009We propose a parametrization for the growth index of the linear matter perturbations, $\gamma(z)=\gamma_0+\frac{z}{1+z}\gamma_1$. The growth factor of the perturbations parameterized as $\Omega_m^{\gamma}$ is analyzed for both the $w$CDM model and the ... More
Dynamics of interacting phantom scalar field dark energy in Loop Quantum CosmologyAug 10 2008Sep 03 2008We study the dynamics of a phantom scalar field dark energy interacting with dark matter in loop quantum cosmology (LQC). Two kinds of coupling of the form $\alpha{\rho_m}{\dot\phi}$ (case I) and $3\beta H (\rho_\phi +\rho_m)$ (case II) between the phantom ... More
Production of gravitational waves during preheating with nonminimal couplingNov 29 2017Apr 30 2018We study the preheating and the in-process production of gravitational waves (GWs) after inflation in which the inflaton is nonminimally coupled to the curvature in a self-interacting quartic potential with the method of lattice simulation. We find that ... More
Brownian motion of a charged test particle driven by vacuum fluctuations near a dielectric half-spaceJul 19 2008We study the Brownian motion of a charged test particle driven by quantum electromagnetic fluctuations in the vacuum region near a non-dispersive and non-absorbing dielectric half-space and calculate the mean squared fluctuations in the velocity of the ... More
The growth of linear perturbations in the DGP modelMay 11 2009May 28 2009We study the linear growth of matter perturbations in the DGP model with the growth index $\gamma$ as a function of redshift. At the linear approximation: $\gamma(z)\approx\gamma_0+\gamma_0^\prime z $, we find that, for $0.2\leq\Omega_{m,0}\leq0.35$, ... More
Monomial, Gorenstein and Bass OrdersAug 27 2013Sep 24 2015In this article we study a class of orders called {\it monomial orders} in a central simple algebra over a non-Archimedean local field. Monomial orders are easily represented and they may be also viewed as a direct generalization of Eichler orders in ... More
Noise and chaotic disturbance on self-similar setDec 25 1998The effect of noise on self-similar set is studied. The iteratie procedure used to generate the self-similar set is moidified by adding a stochastic variable to the diameter of generating sets at each iteration. The noise may causes the generating set ... More
Fixed points and homology of superelliptic JacobiansSep 02 2013Sep 11 2013Let $\eta: C_{f,N}\to \mathbb{P}^1$ be a cyclic cover of $\mathbb{P}^1$ of degree $N$ which is totally and tamely ramified for all the ramification points. We determine the group of fixed points of the cyclic group $\mathbf{mu}_N\cong \mathbb{Z}/N\mathbb{Z}$ ... More
Correlations among Multi-Wavelength Luminosities of Star-Forming GalaxiesDec 08 2004It has been known for two decades that a tight correlation exists between far-infrared (FIR) and radio (1.4 and 4.8 GHz) global fluxes/luminosities from galaxies, which may be explained in terms of massive star formation activities in these galaxies. ... More
$(L,M)$-fuzzy convex structuresFeb 12 2017In this paper, the notion of $(L,M)$-fuzzy convex structures is introduced. It is a generalization of $L$-convex structures and $M$-fuzzifying convex structures. In our definition of $(L,M)$-fuzzy convex structures, each $L$-fuzzy subset can be regarded ... More
Achieving Max-Min Throughput in LoRa NetworksApr 28 2019With growing popularity, LoRa networks are pivotally enabling Long Range connectivity to low-cost and power-constrained user equipments (UEs). Due to its wide coverage area, a critical issue is to effectively allocate wireless resources to support potentially ... More
Separation induced resonances in quasi-one-dimensional ultracold atomic gasesJun 28 2011Jan 16 2012We study the effective one-dimensional (1D) scattering of two distinguishable atoms confined individually by {\em separated} transverse harmonic traps. With equal trapping frequency for two s-wave interacting atoms, we find that by tuning the trap separations, ... More
Unit groups of maximal orders in totally definite quaternion algebras over real quadratic fieldsJul 12 2018Jun 01 2019We study a form of refined class number formula (resp. type number formula) for maximal orders in totally definite quaternion algebras over real quadratic fields, by taking into consideration the automorphism groups of right ideal classes (resp. unit ... More
A New Kind of High-Order Multi-step Schemes for Forward Backward Stochastic Differential EquationsOct 20 2013Mar 26 2014In this work, we concern with the high order numerical methods for coupled forward-backward stochastic differential equations (FBSDEs). Based on the FBSDEs theory, we derive two reference ordinary differential equations (ODEs) from the backward SDE, which ... More
Inflationary dynamics and preheating of the non-minimally coupled inflaton field in the metric and Palatini formalismsJan 12 2018Jan 25 2018The inflationary dynamics and preheating in a model with a non-minimally coupled inflaton field in the metric and Palatini formalisms are studied in this paper. We find that in both formalisms, irrespective of the initial conditions, our Universe will ... More
The growth factor of matter perturbations in an f(R) gravityDec 10 2010The growth of matter perturbations in the $f(R)$ model proposed by Starobinsky is studied in this paper. Three different parametric forms of the growth index are considered respectively and constraints on the model are obtained at both the $1\sigma$ and ... More
Bayesian Estimation Based Load Modeling ReportOct 17 2018Jan 15 2019This report presents the detailed steps of establishing the composite load model in the power system. The derivations of estimation the ZIP model and IM model parameters are proposed in this report. This is a supplementary material for the paper submitted ... More
Biharmonic hypersurfaces in a product space $L^m\times \mathbb{R}$Jun 05 2019In this paper, we study biharmonic hypersurfaces in a product of an Einstein space and a real line. We prove that a biharmonic hypersurface with constant mean curvature in such a product is either minimal or a vertical cylinder generalizing a result of ... More
Efficient single-photon-assisted entanglement concentration for partially entangled photon pairsFeb 10 2012We present two realistic entanglement concentration protocols (ECPs) for pure partially entangled photons. A partially entangled photon pair can be concentrated to a maximally entangled pair with only an ancillary single photon in a certain probability, ... More
Stealthy Malware Traffic - Not as Innocent as It LooksMar 07 2017Malware is constantly evolving. Although existing countermeasures have success in malware detection, corresponding counter-countermeasures are always emerging. In this study, a counter-countermeasure that avoids network-based detection approaches by camouflaging ... More