Results for "Xiang Lin"

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Randomized Iterative Methods with Alternating ProjectionsAug 31 2017We use a unified framework to summarize sixteen randomized iterative methods including Kaczmarz method, coordinate descent method, etc. Some new iterative schemes are given as well. Some relationships with \textsc{mg} and \textsc{ddm} are also discussed. ... More
Gradient Estimates for Solutions To Quasilinear Elliptic Equations with Critical Sobolev Growth and Hardy PotentialFeb 13 2015This note is a continuation of the work \cite{CaoXiangYan2014}. We study the following quasilinear elliptic equations \[ -\Delta_{p}u-\frac{\mu}{|x|^{p}}|u|^{p-2}u=Q(x)|u|^{\frac{Np}{N-p}-2}u,\quad\, x\in\mathbb{R}^{N}, \] where $1<p<N,0\leq\mu<\left((N-p)/p\right)^{p}$ ... More
Remarks on Nondegeneracy of Ground States for Quasilinear Schrödinger EquationsJun 11 2015Jun 25 2015In this paper, we answer affirmatively the problem proposed by A. Selvitella in his paper "Nondegenracy of the ground state for quasilinear Schr\"odinger Equations" (see Calc. Var. Partial Differ. Equ., {\bf 53} (2015), pp 349-364): every ground state ... More
Asymptotic Expansion with Boundary Layer Analysis for Strongly Anisotropic Elliptic EquationsJan 09 2017In this article, we derive the asymptotic expansion, up to an arbitrary order in theory, for the solution of a two-dimensional elliptic equation with strongly anisotropic diffusion coefficients along different directions, subject to the Neumann boundary ... More
Asymptotic Behaviors of Solutions to quasilinear elliptic Equations with critical Sobolev growth and Hardy potentialFeb 13 2015Optimal estimates on the asymptotic behaviors of weak solutions both at the origin and at the infinity are obtained to the following quasilinear elliptic equations \[-\Delta_{p}u-\frac{\mu}{|x|^{p}}|u|^{p-2}u=Q(x)|u|^{\frac{Np}{N-p}-2}u,\quad\,x\in \mathbb{R}^{N},\] ... More
Uniqueness of Positive Radial Solutions To Singular Critical Growth Quasilinear Elliptic EquationsMar 20 2015In this paper, we prove that there exists at most one positive radial weak solution to the following quasilinear elliptic equation with singular critical growth \[ \begin{cases} -\Delta_{p}u-{\displaystyle \frac{\mu}{|x|^{p}}|u|^{p-2}u}{\displaystyle ... More
A Note on Asymptotic Behaviors Of Solutions To Quasilinear Elliptic Equations with Hardy PotentialJan 08 2015Jan 30 2015Optimal estimates on asymptotic behaviors of weak solutions both at the origin and at the infinity are obtained to the following quasilinear elliptic equations \begin{eqnarray*} -\Delta_{p}u-\frac{\mu}{|x|^{p}}|u|^{p-2}u+m|u|^{p-2}u=f(u), & & x\in\R^{N}, ... More
Uniqueness and nondegeneracy of positive solutions to a class of Kirchhoff equations in $\mathbb{R}^3$Oct 25 2016In this paper, we establish a type of uniqueness and nondegeneracy results for positive solutions to the following nonlocal Kirchhoff equations \begin{eqnarray*} -\left(a+b\int_{\mathbb{R}^{3}}|\nabla u|^{2}\text{d} x\right)\Delta u+u=|u|^{p-1}u & & \text{in ... More
Hidden-charm molecular pentaquarks and their charm-strange partnersJan 13 2016Apr 06 2016In the framework of one-pion-exchange (OPE) model, we study the hidden-charm and charm-strange molecular pentaquark systems composed of a heavy baryon $(\Sigma_c, \Sigma_c^*)$ and a vector meson $(\bar{K}^*, \bar{D}^*)$, where the S-D mixing effect is ... More
The silicate model and carbon rich model of CoRoT-7b, Kepler-9d and Kepler-10bMay 30 2012May 31 2012Possible bulk compositions of the super-Earth exoplanets, CoRoT-7b, Kepler-9d, and Kepler-10b are investigated by applying a commonly used silicate and a non-standard carbon model. Their internal structures are deduced using the suitable equation of state ... More
Some regularity results for $p$-harmonic mappings between Riemannian manifoldsFeb 03 2018Apr 30 2019Let $M$ be a $C^2$-smooth Riemannian manifold with boundary and $N$ a complete $C^2$-smooth Riemannian manifold. We show that each stationary $p$-harmonic mapping $u\colon M\to N$, whose image lies in a compact subset of $N$, is locally $C^{1,\alpha}$ ... More
Regularity and quantitative gradient estimate of p-harmonic mappings between Riemannian manifoldsFeb 03 2018Feb 26 2018Let $M$ be a $C^2$-smooth Riemannian manifold with boundary and $N$ a complete $C^2$-smooth Riemannian manifold. We show that each stationary $p$-harmonic mapping $u\colon M\to N$, whose image lies in a compact subset of $N$, is locally $C^{1,\alpha}$ ... More
Time-varying perturbations can distinguish among integrate-to-threshold models for perceptual decision-making in reaction time tasksJan 15 2009Several integrate-to-threshold models with differing temporal integration mechanisms have been proposed to describe the accumulation of sensory evidence to a prescribed level prior to motor response in perceptual decision-making tasks. An experiment and ... More
Phenomenology of Modified Gravity at RecombinationOct 04 2018We discuss the phenomenological imprints of modifications to gravity in the early universe with a specific focus on the time of recombination. We derive several interesting results regarding the effect that such modifications have on cosmological observables, ... More
Bi-axial shear of confined colloidal suspensions: the structure and rheology of the vorticity-aligned string phaseMay 31 2013Using a novel bi-axial confocal rheoscope, we investigate the structure and rheology of sheared colloidal suspensions under confinement. Consistent with previous work [X. Cheng \textit{et al., Proc. Natl. Acad. Sci. U. S. A.}, 2011, 109, 63], we observe ... More
Explore Stochastic Instabilities of Periodic Points by Transition Path TheoryJan 07 2016We consider the noise-induced transitions in the randomly perturbed discrete logistic map from a linearly stable periodic orbit consisting of T periodic points. The traditional large deviation theory and asymptotic analysis for small noise limit as well ... More
Entanglement Entropy in $T\overline{T}$-Deformed CFTJul 22 2018Aug 28 2018In this paper, we study the entanglement entropy of a single interval on a cylinder in two-dimensional $T\overline{T}$-deformed conformal field theory. For such case, the (R\'enyi) entanglement entropy takes a universal form in a CFT. We compute the correction ... More
Massively Parallel Ray Tracing Algorithm Using GPUApr 13 2015Ray tracing is a technique for generating an image by tracing the path of light through pixels in an image plane and simulating the effects of high-quality global illumination at a heavy computational cost. Because of the high computation complexity, ... More
A Note on Asymptotic Behaviors Of Solutions To Quasilinear Elliptic Equations with Hardy PotentialFeb 13 2015Optimal estimates on asymptotic behaviors of weak solutions both at the origin and at the infinity are obtained to the following quasilinear elliptic equations \begin{eqnarray*} -\Delta_{p}u-\frac{\mu}{|x|^{p}}|u|^{p-2}u+m|u|^{p-2}u=f(u), & & x\in\R^{N}, ... More
Chiral corrections to the $1^{-+}$ exotic meson massMar 21 2016Dec 12 2016We first construct the effective chiral Lagrangians for the $1^{-+}$ exotic mesons. With the infrared regularization scheme, we derive the one-loop infrared singular chiral corrections to the $\pi_1(1600)$ mass explicitly. We investigate the variation ... More
Initial state radiation correction and its effect to data-taking scheme for $σ^{\mathrm{B}}(e^+e^-\to ZH)$ measurementFeb 25 2019The measurement of Born cross section of $e^+e^-\to ZH$ process is one of the major goals of the future Circular Electron Positron Collider, which may reach a precision of 0.5\%. Such unprecedented precision must be guaranteed by both theoretical and ... More
Non-intrusive Subdomain POD-TPWL Algorithm for Reservoir History MatchingJun 09 2018This paper presents a non-intrusive subdomain POD-TPWL (SD POD-TPWL) algorithm for reservoir data assimilation through integrating domain decomposition (DD), radial basis function (RBF) interpolation and the trajectory piecewise linearization (TPWL). ... More
Subdomain POD-TPWL with Local Parameterization for Large-Scale Reservoir History Matching ProblemsJan 23 2019We have recently proposed an efficient subdomain POD-TPWL (Xiao et al, 2018) for history matching without the need of model intrusion. From a computational point of view, a local parameterization where the parameters are separately defined in each subdomain ... More
Subcategory-aware Convolutional Neural Networks for Object Proposals and DetectionApr 16 2016Mar 09 2017In CNN-based object detection methods, region proposal becomes a bottleneck when objects exhibit significant scale variation, occlusion or truncation. In addition, these methods mainly focus on 2D object detection and cannot estimate detailed properties ... More
On the p-regularized trust region subproblemSep 16 2014The $p$-regularized subproblem (p-RS) is a regularisation technique in computing a Newton-like step for unconstrained optimization, which globally minimizes a local quadratic approximation of the objective function while incorporating with a weighted ... More
Learning Dual Retrieval Module for Semi-supervised Relation ExtractionFeb 20 2019Feb 22 2019Relation extraction is an important task in structuring content of text data, and becomes especially challenging when learning with weak supervision---where only a limited number of labeled sentences are given and a large number of unlabeled sentences ... More
Estimation of exciton diffusion lengths of organic semiconductors in random domainsDec 14 2017Exciton diffusion length plays a vital role in the function of opto-electronic devices. Oftentimes, the domain occupied by an organic semiconductor is subject to surface measurement error. In many experiments, photoluminescence over the domain is measured ... More
On the Mutual Information in Conformal Field TheoryApr 12 2017Apr 25 2017In this work, we study the universal behaviors in the mutual information of two disjoint spheres in a conformal field theory(CFT). By using the operator product expansion of the spherical twist operator in terms of the conformal family, we show that the ... More
Using Context Information to Enhance Simple Question AnsweringApr 27 2019With the rapid development of knowledge bases(KBs),question answering(QA)based on KBs has become a hot research issue. In this paper,we propose two frameworks(i.e.,pipeline framework,an end-to-end framework)to focus answering single-relation factoid question. ... More
A Unified Linear-Time Framework for Sentence-Level Discourse ParsingMay 14 2019We propose an efficient neural framework for sentence-level discourse analysis in accordance with Rhetorical Structure Theory (RST). Our framework comprises a discourse segmenter to identify the elementary discourse units (EDU) in a text, and a discourse ... More
A Multi-length Bunches Design for Electron Storage Rings with Odd BucketsSep 11 2014A scheme with two superconducting RF cavities (sc-cavities) is designed to upgrade electron storage rings with odd buckets into multi-length bunches. In this paper, Hefei Light Source II (HLS II) is given as an example for odd buckets. In accordance with ... More
Terrestrial Planets Formation around Circumbinary Habitable Zone: Inward Migration in the Planetesimal SwarmNov 29 2012According to the core accretion theory, circumbinary embryos can form only beyond a critical semimajor axis (CSMA). However, due to the relatively high density of solid materials in the inner disk, significant amount of small planetesimals must exist ... More
$L^\infty$-variational problems associated to measurable Finsler structuresAug 12 2015Aug 13 2015We study $L^\infty$-variational problems associated to measurable Finsler structures in Euclidean spaces. We obtain existence and uniqueness results for the absolute minimizers.
The behavior of the fractional quantum Hall states in the LLL and 1LL with in-plane magnetic field and Landau level mixing: a numerical investigationMay 02 2018By exactly solving the effective two-body interaction for two-dimensional electron system with layer thickness and an in-plane magnetic field, we recently found that the effective interaction can be described by the generalized pseudopotentials (PPs) ... More
Energy Efficiency Evaluation of Cellular Networks Based on Spatial Distributions of Traffic Load and Power ConsumptionDec 17 2014Energy efficiency has gained its significance when service providers' operational costs burden with the rapidly growing data traffic demand in cellular networks. In this paper, we propose an energy efficiency model for Poisson-Voronoi tessellation (PVT) ... More
Strong LHCb evidence for supporting the existence of hidden-charm molecular pentaquarksMar 26 2019In 26 March 2019, at the Rencontres de Moriond QCD conference, the LHCb Collaboration reported the observation of new pentaquarks, namely $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$. Within the framework of one-boson-exchange (OBE) model, our study indicates ... More
Hadronic molecules with both open charm and bottomMar 06 2012Apr 30 2012With the one-boson-exchange model, we study the interaction between the S-wave $D^{(*)}/D^{(*)}_s$ meson and S-wave $B^{(*)}/B^{(*)}_s$ meson considering the S-D mixing effect. Our calculation indicates that there may exist the $B_c$-like molecular states. ... More
X(1576) and the Final State Interaction EffectJan 04 2007Mar 07 2007We study whether the broad peak X(1576) observed by BES Collaboration arises from the final state interaction effect of $\rho(1450,1700)$ decays. The interference effect could produce an enhancement around 1540 MeV in the $K^+K^-$ spectrum with typical ... More
Spherical collapse and virialization in $f(T)$ gravitiesDec 18 2016Mar 23 2017Using the classical top-hat profile, we study the non-linear growth of spherically symmetric density perturbation and structure formation in $f(T)$ gravities. In particular, three concrete models, which have been tested against the observation of large-scale ... More
Oscillation Driven Magnetospheric Activity In PulsarsNov 21 2014Nov 25 2014We study the magnetospheric activity in the polar cap region of pulsars under stellar oscillations. The toroidal oscillation of the star propagates into the magnetosphere, which provides additional voltage due to unipolar induction, changes Goldreich-Julian ... More
The hidden-charm pentaquark and tetraquark statesJan 09 2016May 22 2016In the past decade many charmonium-like states were observed experimentally. Especially those charged charmonium-like $Z_c$ states and bottomonium-like $Z_b$ states can not be accommodated within the naive quark model. These charged $Z_c$ states are good ... More
Quantum phase transition in a multiconnected Jaynes-Cummings latticeFeb 07 2017The rapid progress in quantum technology enables the implementation of artificial many-body systems with correlated photons and polaritons. A multiconnected Jaynes-Cummings (MCJC) lattice can be constructed by connecting qubits and cavities alternatively. ... More
Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarksMar 26 2019Mar 28 2019On March 26th, 2019, at the Rencontres de Moriond QCD conference, the LHCb Collaboration reported the observation of three new pentaquarks, namely $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$, which are consistent with the loosely bound molecular hidden-charm ... More
Predictions of the hidden-charm molecular states with four-quark componentNov 11 2015May 31 2016In this work, we study the $T\bar{T}$-type molecular systems systematically via one pion exchange model, where $T$ denotes the narrow $J^P=1^+$ $D_1$ meson or $2^+$ $D_2^*$ meson and $\bar{T}$ is its antiparticle. With the effective potentials, we try ... More
Multi-peak positive solutions to a class of Kirchhoff equationsAug 05 2017In the present paper, we consider the nonlocal Kirchhoff problem \begin{eqnarray*} -\left(\epsilon^2a+\epsilon b\int_{\mathbb{R}^{3}}|\nabla u|^{2}\right)\Delta u+V(x)u=u^{p},\,\,\,u>0 & & \text{in }\mathbb{R}^{3}, \end{eqnarray*} where $a,b>0$, $1<p<5$ ... More
Sparse Optimization Problem with s-difference RegularizationMay 11 2019In this paper, a s-difference type regularization for sparse recovery problem is proposed, which is the difference of the normal penalty function R(x) and its corresponding struncated function R (xs). First, we show the equivalent conditions between the ... More
Thickness dependent electronic structure in WTe$_2$ thin filmsMar 08 2017We study the electronic structure of WTe$_2$ thin film fakes with different thickness down to 11 nm. Angle-dependent quantum oscillations reveal a crossover from a three-dimensional (3D) to a two-dimensional (2D) electronic system when the sample thickness ... More
Speeding up the Metabolism in E-commerce by Reinforcement Mechanism DesignJul 02 2018In a large E-commerce platform, all the participants compete for impressions under the allocation mechanism of the platform. Existing methods mainly focus on the short-term return based on the current observations instead of the long-term return. In this ... More
First Electromagnetic Pulse Associated with a Gravitational-Wave Event: Profile, Duration, and DelayMar 05 2018We study the first electromagnetic pulse after the gravitational wave chirp signal, focusing on the profile and duration. It is found that the light curve, especially the steep decay (SD) phase, can be very different by adopting different viewing angle ... More
Effect of pressure on the physical properties of the superconductor NiBi3Sep 20 2018Dec 13 2018We present an experimental study of the superconducting properties of NiBi3 as a function of pressure by means of resistivity and magnetization measurements and combine our results with DFT calculations of the band structure under pressure. We find a ... More
Use of Cernox thermometers in AC specific heat measurements under pressureJan 15 2019Feb 20 2019We report on the resistance behavior of bare-chip Cernox thermometers under pressures up to 2 GPa, generated in a piston-cylinder pressure cell. Our results clearly show that Cernox thermometers, frequently used in low-temperature experiments due to their ... More
Temporal Selective Max Pooling Towards Practical Face RecognitionSep 22 2016Sep 26 2016In this report, we deal with two challenges when building a real-world face recognition system - the pose variation in uncontrolled environment and the computational expense of processing a video stream. First, we argue that the frame-wise feature mean ... More
Determination of the neutron capture cross sections of 232Th at 14.1 MeV and 14.8 MeV using the neutron activation methodJul 30 2016The 232Th(n,{\gamma})233Th neutron capture reaction cross sections were measured at average neutron energies of 14.1 MeV and 14.8 MeV using the activation method. The neutron flux was determined using the monitor reaction 27Al(n,{\alpha})24Na. The induced ... More
The molecular systems composed of the charmed mesons in the $H\bar{S}+h.c.$ doubletMay 06 2010May 10 2010We study the possible heavy molecular states composed of a pair of charm mesons in the H and S doublets. Since the P-wave charm-strange mesons $D_{s0}(2317)$ and $D_{s1}(2460)$ are extremely narrow, the future experimental observation of the possible ... More
Uniqueness and Nondegeneracy of Ground States for Choquard Equations in three dimensionsJun 04 2015We obtain uniqueness and nondegeneracy results for ground states of Choquard equations $-\Delta u+u=\left(|x|^{-1}\ast|u|^{p}\right)|u|^{p-2}u$ in $\mathbb{R}^{3}$, provided that $p>2$ and $p$ is sufficiently close to 2.
Linearized Alternating Direction Method with Adaptive Penalty and Warm Starts for Fast Solving Transform Invariant Low-Rank TexturesMay 24 2012Jan 29 2013Transform Invariant Low-rank Textures (TILT) is a novel and powerful tool that can effectively rectify a rich class of low-rank textures in 3D scenes from 2D images despite significant deformation and corruption. The existing algorithm for solving TILT ... More
Neutral excitation and bulk gap of the Fractional Quantum Hall liquids in disk geometryMar 23 2019For the numerical simulation of the fractional quantum Hall effects on a finite disk, the rotational symmetry is the only symmetry that were used in diagonalizing the Hamiltonian. In this work, we propose a method of using the weak translational symmetry ... More
QCD sum rule study of hidden-charm pentaquarksFeb 07 2016We study the mass spectra of hidden-charm pentaquarks having spin $J = {1\over2},{3\over2},{5\over2}$ and quark contents $uud c \bar c$. We systematically construct all the relevant local hidden-charm pentaquark currents, and select some of them to perform ... More
Average entropy of a subsystem over a global unitary orbit of a mixed bipartite stateSep 01 2015Oct 26 2016We investigate the average entropy of a subsystem within a global unitary orbit of a given mixed bipartite state in the finite-dimensional space. Comparison with Page's formula for the average entropy of a subsystem of random bipartite pure state case, ... More
A variant of Horn's problem and derivative principleJul 23 2017Mar 06 2019Identifying the spectrum of the sum of two given Hermitian matrices with fixed eigenvalues is the famous Horn's problem.In this note, we investigate a variant of Horn's problem, i.e., we identify the probability density function (abbr. pdf) of the diagonals ... More
Average entropy of a subsystem over a global unitary orbit of a mixed bipartite stateSep 01 2015Mar 05 2017We investigate the average entropy of a subsystem within a global unitary orbit of a given mixed bipartite state in the finite-dimensional space. Without working out the closed-form expression of such average entropy for the mixed state case, we provide ... More
Nonlinear Liouville problems in a quarter planeSep 28 2015We answer affirmatively the open problem proposed by Cabr\'e and Tan in their paper "Positive solutions of nonlinear problems involving the square root of the Laplacian" (see Adv. Math. {\bf 224} (2010), no. 5, 2052-2093).
Maximum relative excitation of a specific vibrational mode via optimum laser pulse durationJan 07 2010Oct 01 2010For molecules and materials responding to femtosecond-scale optical laser pulses, we predict maximum relative excitation of a Raman-active vibrational mode with period T when the pulse has an FWHM duration of 0.42 T. This result follows from a general ... More
Non-locally Enhanced Encoder-Decoder Network for Single Image De-rainingAug 04 2018Single image rain streaks removal has recently witnessed substantial progress due to the development of deep convolutional neural networks. However, existing deep learning based methods either focus on the entrance and exit of the network by decomposing ... More
Uniqueness and Nondegeneracy of positive solutions to Kirchhoff equations and its applications in singular perturbation problemsMar 16 2017In the present paper, we establish the uniqueness and nondegeneracy of positive energy solutions to the Kirchhoff equation \begin{eqnarray*} -\left(a+b\int_{\mathbb{R}^{3}}|\nabla u|^{2}\right)\Delta u+u=|u|^{p-1}u & & \text{in }\mathbb{R}^{3}, \end{eqnarray*} ... More
Controlling quantum spin Hall state via strain in various stacking bilayer phosphoreneFeb 06 2015Quantum spin Hall (QSH) state of matter has a charge excitation bulk bandgap and a pair of gapless spin-filtered edge-states, which can support backscattering-free transport. Bilayer phosphorene possesses a large tunable bandgap and high carrier mobilities, ... More
The $X(4140)$, $X(4270)$, $X(4500)$ and $X(4700)$ and their $cs\bar{c}\bar{s}$ tetraquark partnersAug 29 2016In the simple color-magnetic interaction model, we investigate possible ground $cs\bar{c}\bar{s}$ tetraquark states in the diquark-antidiquark basis. We use several methods to estimate the mass spectrum and discuss possible assignment for the $X$ states ... More
Oscillation: The Key For Understanding Strange Radio Behaviors Of AXP/SGRsDec 14 2015We suggest stellar oscillations are responsible for the strange radio behaviors of Anomalous X-ray pulsars and soft Gamma-ray repeaters (AXP/SGRs), within the framework of both solid quark star model and magnetar model. In solid quark star model, the ... More
Cache-Aided Non-Orthogonal Multiple Access: The Two-User CaseJan 29 2018Mar 19 2019In this paper, we propose a cache-aided non-orthogonal multiple access (NOMA) scheme for spectrally efficient downlink transmission. The proposed scheme not only reaps the benefits associated with NOMA and caching, but also exploits the data cached at ... More
Cache-Aided Non-Orthogonal Multiple AccessDec 27 2017Jan 29 2018In this paper, we propose a novel joint caching and non-orthogonal multiple access (NOMA) scheme to facilitate advanced downlink transmission for next generation cellular networks. In addition to reaping the conventional advantages of caching and NOMA ... More
Superconductivity and abnormal pressure effect in Sr0.5La0.5FBiSe2 superconductorApr 29 2016Through the solid state reaction method, we synthesized a new BiSe2-based superconductor Sr0:5La0:5FBiSe2 with superconducting transition temperature Tc?3.8 K. A strong diamagnetic signal below Tc in susceptibility ?(T) is observed indicating the bulk ... More
Femtosecond soliton diode on heterojunction Bragg-grating structureAug 11 2016We numerically propose a scheme for realizing an all-optical femtosecond soliton diode based on a tailored heterojunction Bragg grating, which is designed by two spatially asymmetric chirped cholesteric liquid crystals. Our simulations demonstrate that ... More
Gaussian-modulated coherent-state measurement-device-independent quantum key distributionDec 18 2013May 01 2014Measurement-device-independent quantum key distribution (MDI-QKD), leaving the detection procedure to the third partner and thus being immune to all detector side-channel attacks, is very promising for the construction of high-security quantum information ... More
Social capital at venture capital firms and their financial performance: Evidence from ChinaOct 06 2018This paper studies the extent to which social capital drives performance in the Chinese venture capital market and explores the trend toward VC syndication in China. First, we propose a hybrid model based on syndicated social networks and the latent-variable ... More
Orbital density wave order and electronic correlation driven insulating 1T-TaS2 monolayerJul 05 2014We present the orbital resolved electronic properties of structurally distorted 1T-TaS2 monolayers. After optimizing the crystal structures, we obtain the lattice parameters and atomic positions in the star-of-David structure, and show the low-temperature ... More
Visualizing and Understanding Deep Neural Networks in CTR PredictionJun 22 2018Although deep learning techniques have been successfully applied to many tasks, interpreting deep neural network models is still a big challenge to us. Recently, many works have been done on visualizing and analyzing the mechanism of deep neural networks ... More
Exotic tetraquark states with the $qq\bar{Q}\bar{Q}$ configurationJul 04 2017Oct 11 2017In this work, we study systematically the mass splittings of the $qq\bar{Q}\bar{Q}$ ($q=u$, $d$, $s$ and $Q=c$, $b$) tetraquark states with the color-magnetic interaction by considering color mixing effects and estimate roughly their masses. We find that ... More
Adiabatic Generation of N-quNit Singlet States with Cavity QEDJul 27 2016A theoretical scheme is presented for the adiabatic generation of N-quNit singlet states with $N\geqslant3$, which may be more feasible than previous ones in a cavity. In this proposal, the system may be robust both parameter fluctuations and dissipation ... More
Boosted Higgs-pair production associated with large $E_T^{miss}$: a signal of $Z^\prime$Apr 02 2018Non-resonant production of Higgs-pair via heavy intermediate states may be a distinctive signature for extended discrete symmetries when accompaied by large missing transvers energy. We discuss $T$-parity as an example of such symmetry within the Littlest ... More
Triply heavy tetraquark states with the $QQ\bar{Q}\bar{q}$ configurationSep 20 2016Dec 25 2016In the framework of the color-magnetic interaction, we systematically investigate the mass splittings of the $QQ\bar{Q}\bar{q}$ tetraquark states and estimated their rough masses in this work. These systems include the explicitly exotic states $cc\bar{b}\bar{q}$ ... More
$X(4140)$, $X(4270)$, $X(4500)$ and $X(4700)$ and their $cs\bar{c}\bar{s}$ tetraquark partnersAug 29 2016Nov 20 2016In the simple color-magnetic interaction model, we investigate possible ground $cs\bar{c}\bar{s}$ tetraquark states in the diquark-antidiquark basis. We use several methods to estimate the mass spectrum and discuss possible assignment for the $X$ states ... More
Quantum Mechanical Simulation of Electronic Transport in Nanostructured Devices by Efficient Self-consistent Pseudopotential CalculationNov 02 2010We present a new empirical pseudopotential (EPM) calculation approach to simulate the million atom nanostructured semiconductor devices under potential bias using the periodic boundary conditions. To treat the non-equilibrium condition, instead of directly ... More
The effect of planet-planet scattering on the survival of exomoonsMay 08 2013Compared to the giant planets in the solar system, exoplanets have many remarkable properties such as the prevalence of giant planets on eccentric orbits and the presence of hot Jupiters. Planet-planet scattering (PPS) between giant planets is a possible ... More
A Machine Learning-Based Detection Technique for Optical Fiber Nonlinearity MitigationFeb 27 2019Mar 06 2019We investigate the performance of a machine learning classification technique, called the Parzen window, to mitigate the fiber nonlinearity in the context of dispersion managed and dispersion unmanaged systems. The technique is applied for detection at ... More
Distributed rank-1 dictionary learning: Towards fast and scalable solutions for fMRI big data analyticsAug 08 2017The use of functional brain imaging for research and diagnosis has benefitted greatly from the recent advancements in neuroimaging technologies, as well as the explosive growth in size and availability of fMRI data. While it has been shown in literature ... More
A variant of Horn's problem and derivative principleJul 23 2017Feb 22 2019Identifying the spectrum of eigenvalues of the sum of two given Hermitian matrices with fixed eigenvalues is the famous Horn's problem.In this note, we investigate a variant of Horn's problem, i.e., we identify the probability density function (abbr. ... More
A Unified Framework for Mutual Improvement of SLAM and Semantic SegmentationDec 25 2018This paper presents a novel framework for simultaneously implementing localization and segmentation, which are two of the most important vision-based tasks for robotics. While the goals and techniques used for them were considered to be different previously, ... More
Pentaquark and Tetraquark statesMar 28 2019The past seventeen years have witnessed tremendous progress on the experimental and theoretical explorations of the multiquark states. The hidden-charm and hidden-bottom multiquark systems were reviewed extensively in [Phys. Rept. 639 (2016) 1-121]. In ... More
Real-Time Optical flow-based Video Stabilization for Unmanned Aerial VehiclesJan 13 2017This paper describes the development of a novel algorithm to tackle the problem of real-time video stabilization for unmanned aerial vehicles (UAVs). There are two main components in the algorithm: (1) By designing a suitable model for the global motion ... More
Controlling quantum-dot light absorption and emission by a surface-plasmon fieldJul 11 2014The possibility for controlling the probe-field optical gain and absorption switching and photon conversion by a surface-plasmon-polariton near field is explored for a quantum dot above the surface of a metal. In contrast to the linear response in the ... More
Resonant Scattering of Surface Plasmon Polaritons by Dressed Quantum DotsMay 01 2014The resonant scattering of surface plasmon-polariton waves by embedded semiconductor quantum dots above the dielectric/metal interface is explored in the strong-coupling regime. In contrast to non-resonant scattering by a localized dielectric surface ... More
Some Developments of the Casimir Effect in $p$-Cavity of $(D+1)$-Dimensional SpacetimeDec 02 2014The Casimir effect for rectangular boxes has been studied for several decades. But there are still some points unclear. Recently, there are new developments related to this topic, including the demonstration of the equivalence of the regularization methods ... More
Is X(3872) {\sl Really} a Molecular State?Jan 23 2008May 13 2008After taking into account both the pion and sigma meson exchange potential, we have performed a dynamical calculation of the $D^0\bar{D}^{\ast0}$ system. The $\sigma$ meson exchange potential is repulsive from heavy quark symmetry and numerically important ... More
$Z_b(10610)^\pm$ and $Z_b(10650)^\pm$ as the $B^*\bar{B}$ and $B^*\bar{B}^{*}$ molecular statesJun 15 2011In the framework of the one-boson-exchange model, we have studied the interaction of the $B^*\bar{B}$ and $B^*\bar{B}^{*}$ system. After considering the S-wave and D-wave mixing, we notice that both $Z_b(10610)^\pm$ and $Z_b(10650)^\pm$ can be interpreted ... More
Physical accessible transformations on a finite number of quantum statesNov 09 2006We consider to treat the usual probabilistic cloning, state separation, unambiguous state discrimination, \emph{etc} in a uniform framework. All these transformations can be regarded as special examples of generalized completely positive trace non-increasing ... More
Dual-Level Compressed Aggregation: Recovering Fields of Physical Quantities from Incomplete Sensory DataJul 25 2011Jul 30 2011Although wireless sensor networks (WSNs) are powerful in monitoring physical events, the data collected from a WSN are almost always incomplete if the surveyed physical event spreads over a wide area. The reason for this incompleteness is twofold: i) ... More
Decoy-state quantum key distribution with both source errors and statistical fluctuationsFeb 26 2009Nov 21 2009We show how to calculate the fraction of single photon counts of the 3-intensity decoy-state quantum cryptography faithfully with both statistical fluctuations and source errors. Our results only rely on the bound values of a few parameters of the states ... More
Multi-Level Power-Imbalance Allocation Control for Secondary Frequency Control of Power SystemsAug 13 2017Jun 13 2018A consensus-control-based multi-level control law named Multi-Level Power-Imbalance Allocation Control (MLPIAC) is presented for a large-scale power system partitioned into two or more areas. Centralized control is implemented in each area while distributed ... More
Decay properties of $P$-wave charmed baryons from light-cone QCD sum rulesMar 22 2017May 22 2017We study decay properties of the $P$-wave charmed baryons using the method of light-cone QCD sum rules, including the $S$-wave decays of the flavor $\mathbf{\bar 3}_F$ $P$-wave charmed baryons into ground-state charmed baryons accompanied by a pseudoscalar ... More
Decoding the $X(5568)$ as a fully open-flavor $su\bar b\bar d$ tetraquark stateFeb 29 2016Jun 17 2016We investigate the recent evidence for a charged $X(5568)$ meson as an exotic open-flavor tetraquark state $su\bar b\bar d$ with $J^P=0^+/1^+$ in the framework of QCD sum rules. We use the color antisymmetric $[\mathbf{\bar 3_c}]_{su} \otimes [\mathbf{3_c}]_{\bar{b}\bar ... More