Results for "Kai-Wen Liang"

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Intervention Pathway Discovery via Context-Dependent Dynamic Sensitivity AnalysisFeb 08 2019The sensitivity analysis of biological system models can significantly contribute to identifying and explaining influences of internal or external changes on model and its elements. We propose here a comprehensive framework to study sensitivity of intra-cellular ... More
Gravitational Quasinormal Modes of Regular Phantom Black HoleMay 27 2016Feb 17 2017We investigate the gravitational quasi-normal modes (QNMs) for a type of regular black hole (BH) known as phantom BH, which is a static self-gravitating solution of a minimally coupled phantom scalar field with a potential. The studies are carried out ... More
The effects of the little Higgs models on $t\bar{t} h^0$ production via $γγ$ collision at linear collidersJun 11 2007In the frameworks of the littlest Higgs($LH$) model and its extension with T-parity($LHT$), we studied the associated $t\bar th^0$ production process $e^+ e^- \to \gamma\gamma \to t \bar t h^0$ at the future $e^+e^-$ linear colliders up to QCD next-to-leading ... More
Nuclear spin pair coherence in diamond for atomic scale magnetometryMar 23 2010The nitrogen-vacancy (NV) centre, as a promising candidate solid state system of quantum information processing, its electron spin coherence is influenced by the magnetic field fluctuations due to the local environment. In pure diamonds, the environment ... More
p-wave holographic superconductor in scalar hairy black holesMar 31 2019We study the properties of the p-wave holographic superconductor for the scalar hairy black holes in the probe limit. The black hole solutions in question possess planar topology, which are derived from the Einstein gravity theory minimally coupled to ... More
On the peripheral-tube description of the two-particle correlations in nuclear collisionsAug 11 2018Jan 06 2019In this work, we study the two-particle correlations regarding a peripheral tube model. From our perspective, the main characteristics of the observed two-particle correlations are attributed to the multiplicity fluctuations and the locally disturbed ... More
A Maxwell-vector p-wave holographic superconductor in a particular background AdS black hole metricMar 16 2018Apr 22 2018We study the p-wave holographic superconductor for AdS black holes with planar event horizon topology for a particular Lovelock gravity, in which the action is characterized by a self-interacting scalar field nonminimally coupled to the gravity theory ... More
Methods to Expand Cell Signaling Models using Automated Reading and Model CheckingJun 15 2017Biomedical research results are being published at a high rate, and with existing search engines, the vast amount of published work is usually easily accessible. However, reproducing published results, either experimental data or observations is often ... More
Image-derived generative modeling of pseudo-macromolecular structures - towards the statistical assessment of Electron CryoTomography template matchingMay 12 2018Cellular Electron CryoTomography (CECT) is a 3D imaging technique that captures information about the structure and spatial organization of macromolecular complexes within single cells, in near-native state and at sub-molecular resolution. Although template ... More
Adiabatic self-consistent collective path in nuclear fusion reactionsMar 13 2017Jun 27 2017Collective reaction paths for fusion reactions, $^{16}$O+$\alpha$ $\rightarrow$ $^{20}$Ne and $^{16}$O+$^{16}$O $\rightarrow$ $^{32}$S, are microscopically determined, on the basis of the adiabatic self-consistent collective coordinate (ASCC) method. ... More
Rashba spin splitting in biased semiconductor quantum wellsDec 07 2005Dec 08 2005Rashba spin splitting (RSS) in biased semiconductor quantum wells is investigated theoretically based on the eight-band envelope function model. We find that at large wave vectors, RSS is both nonmonotonic and anisotropic as a function of in-plane wave ... More
Super sub-Nyquist single-pixel imaging by means of cake-cutting Hadamard basis sortMar 27 2019Single-pixel imaging via compressed sensing can reconstruct high-quality images from a few linear random measurements of an object/scene known a priori to be sparse or compressive, by using a point/bucket detector without spatial resolution. Nevertheless, ... More
Cryptographic key distribution over a public network via variance-based watermarking in compressive measurementsMar 30 2019The optical communication has an increasing need for security in public transmission scenarios. Here we present a protocol for cryptographic key distribution over a public network via photon-counting compressive imaging system with watermarking, which ... More
Nuclear reaction path and requantization of TDDFTFeb 09 2018Using a theory of large amplitude collective motion, the adiabatic self-consistent collective coordinate method, we derive reaction path for the fusion process at sub-barrier energies. The collective Hamiltonian to describe the fusion process is constructed, ... More
Joint Syntacto-Discourse Parsing and the Syntacto-Discourse TreebankAug 28 2017Discourse parsing has long been treated as a stand-alone problem independent from constituency or dependency parsing. Most attempts at this problem are pipelined rather than end-to-end, sophisticated, and not self-contained: they assume gold-standard ... More
Type-Driven Incremental Semantic Parsing with PolymorphismNov 19 2014Dec 16 2014Semantic parsing has made significant progress, but most current semantic parsers are extremely slow (CKY-based) and rather primitive in representation. We introduce three new techniques to tackle these problems. First, we design the first linear-time ... More
Analysis of Compressed Sensing with Spatially-Coupled Orthogonal MatricesFeb 13 2014Recent development in compressed sensing (CS) has revealed that the use of a special design of measurement matrix, namely the spatially-coupled matrix, can achieve the information-theoretic limit of CS. In this paper, we consider the measurement matrix ... More
Frame-based Approach for Sparse Representation of Signal Decomposition and ReconstructionMar 31 2016Apr 07 2017Frame is the corner stone for designing decomposition and reconstruction operations in signal processing. Famous frames include wavelets, curvelets,and Gabor. A celebrated result indicates that if a synthesis frame is chosen for reconstruction, then its ... More
A Metrix Method for Quasinormal Modes: Schwarzschild Black Holes in Asymptotically Flat and (Anti-) de Sitter SpacetimesOct 26 2016In this work, we study the quasinormal modes of Schwarzschild and Schwarzschild (Anti-) de Sitter black holes by a matrix method. The proposed method involves discretizing the master field equation and expressing it in form of a homogeneous system of ... More
A non grid-based interpolation scheme for the eigenvalue problemSep 08 2016We propose a non grid-based interpolation scheme based on the information from the data collected from the vicinity of the query point. As a non-grid-based interpolation, the data points can be distributed randomly in a small region, and the interpolation ... More
On matrix method for black hole quasinormal modesFeb 22 2019Feb 27 2019In this paper, we provide a comprehensive survey of possible applications of the matrix method for black hole quasinormal modes. The proposed algorithm can generally be applied to various background metrics, and in particular, it accommodates for both ... More
An Ab Initio Study on Energy Gap of Bilayer Graphene Nanoribbons with Armchair EdgesJun 19 2008Dependency of energy bandgap (Eg) of bilayer armchair graphene nanoribbons (AGNRB) on their widths, interlayer distance (D) and edge doping concentration of boron/nitrogen is investigated using local density approximation and compare to the results of ... More
A Matrix Method for Quasinormal Modes: Schwarzschild Black Holes in Asymptotically Flat and (Anti-) de Sitter SpacetimesOct 26 2016Apr 01 2017In this work, we study the quasinormal modes of Schwarzschild and Schwarzschild (Anti-) de Sitter black holes by a matrix method. The proposed method involves discretizing the master field equation and expressing it in form of a homogeneous system of ... More
Frame-based Approach for Sparse Representation of Signal Decomposition and ReconstructionMar 31 2016Frame is the corner stone for designing decomposition and reconstruction operations in signal processing. Famous frames include wavelets, curvelets,and Gabor. A celebrated result indicates that if a synthesis frame is chosen for reconstruction, then its ... More
A Theorem on Multi-Objective Optimization Approach for Bit Allocation of Scalable CodingMar 02 2016In the current work, we have formulated the optimal bit-allocation problem for a scalable codec of images or videos as a constrained vector-valued optimization problem and demonstrated that there can be many optimal solutions, called Pareto optimal points. ... More
Neutral regular black hole solution in Rastall gravityDec 25 2018In this work, we investigate the static, spherically symmetric black hole solutions in a generalized Rastall gravity. In particular, the regular black hole solution is uncharged. The properties of the regular black hole solutions are discussed. Moreover, ... More
The Study of Cosmic Ray Tomography Using Multiple Scattering of Muons for Imaging of High-Z MaterialsAug 03 2016Muon tomography is developing as a promising system to detect high-Z (atomic number) material for ensuring homeland security. In the present work, three kinds of spatial locations of materials which are made of aluminum, iron, lead and uranium are simulated ... More
Deep Representation with ReLU Neural NetworksMar 29 2019We consider deep feedforward neural networks with rectified linear units from a signal processing perspective. In this view, such representations mark the transition from using a single (data-driven) linear representation to utilizing a large collection ... More
Quantum Hall Effect in Black Phosphorus Two-dimensional Electron GasApr 27 2015May 19 2015Development of new, high quality functional materials has been at the forefront of condensed matter research. The recent advent of two-dimensional black phosphorus has greatly enriched the material base of two-dimensional electron systems. Significant ... More
The Distributed MIMO Scenario: Can Ideal ADCs Be Replaced by Low-resolution ADCs?May 12 2017May 15 2017This letter considers the architecture of distributed antenna system, which is made up of a massive number of single-antenna remote radio heads (RRHs), some with full-resolution but others with low-resolution analog-to-digital converter (ADC) receivers. ... More
Braided fusion categories, gravitational anomalies, and the mathematical framework for topological orders in any dimensionsMay 22 2014Gravitational anomalies can be realized on the boundary of topologically ordered states in one higher dimension and are described by topological orders in one higher dimension. In this paper, we try to develop a general theory for both topological order ... More
Textual Entailment with Structured Attentions and CompositionJan 04 2017Deep learning techniques are increasingly popular in the textual entailment task, overcoming the fragility of traditional discrete models with hard alignments and logics. In particular, the recently proposed attention models (Rockt\"aschel et al., 2015; ... More
Self-Assembly of Asymmetrically Interacting ABC Star Triblock Copolymer MeltsAug 23 2015The phase behavior of asymmetrically interacting ABC star triblock copolymer melts is investigated by the self-consistent field theory (SCFT). Motivated by the experimental systems, in this study, we focus on the systems in which the Flory-Huggins interaction ... More
Nature of the Roberge-Weiss transition end points in two-flavor lattice QCD with Wilson quarksMar 02 2013May 27 2013We make simulations with 2 flavor Wilson fermions to investigate the nature of the end points of Roberge-Weiss (RW) first order phase transition lines. The simulations are carried out at 9 values of the hopping parameter $\kappa$ ranging from 0.155 to ... More
Locations of Roberge-Weiss transition endpoints in lattice QCD with $N_f=2$ improved KS quarksDec 11 2016Result on the locations of the tricritical points of $N_f=2$ lattice QCD with imaginary chemical potential is presented. Simulations are carried out with Symanzik improved gauge action and Asqtad fermion action. With imaginary chemical potential $i\mu_I=i\pi ... More
Nature of Roberge-Weiss transition end points for heavy quarks in $N_f=2$ lattice QCD with Wilson fermionsMay 10 2014Oct 26 2014The phase structure of QCD with imaginary chemical potential provides information on the phase diagram of QCD with real chemical potential. With imaginary chemical potential $i\mu_I=i\pi T$, previous studies show that the Roberge-Weiss (RW) transition ... More
Macroscopic quantum computation using Bose-Einstein condensatesMar 28 2011Quantum computation using qubits made of two component Bose-Einstein condensates (BECs) is analysed. The use of BECs allows for an increase of energy scales via bosonic enhancement, resulting in gate operations that can be performed at a macroscopically ... More
Probing the statistical properties of CMB $B$-mode polarization through Minkowski FunctionalsOct 27 2015Jul 11 2016The detection of the magnetic type $B$-mode polarization is the main goal of future cosmic microwave background (CMB) experiments. In the standard model, the $B$-mode map is a strongly non-gaussian field due to the lensed component. Besides the two-point ... More
Smoothing methods comparison for CMB E- and B-mode separationNov 04 2015The anisotropies of the B-mode polarization in the cosmic microwave background radiation play a crucial role for the study of the very early Universe. However, in the real observation, the mixture of the E-mode and B-mode can be caused by the partial ... More
Generalized Expectation Consistent Signal Recovery for Nonlinear MeasurementsJan 16 2017May 12 2017In this paper, we propose a generalized expectation consistent signal recovery algorithm to estimate the signal $\mathbf{x}$ from the nonlinear measurements of a linear transform output $\mathbf{z}=\mathbf{A}\mathbf{x}$. This estimation problem has been ... More
Production of antimatter $^{5,6}$Li nuclei in central Au+Au collisions at $\sqrt{s_{NN}} = 200$ GeVSep 17 2015Oct 23 2015Combining the covariant coalescence model and a blast-wave-like analytical parametrization for (anti-)nucleon phase-space freezeout configuration, we explore light (anti-)nucleus production in central Au+Au collisions at $\sqrt{s_{NN}} = 200$ GeV. Using ... More
Higher dimensional power-Maxwell charged black holes in Einstein and Rastall gravitySep 26 2018Dec 26 2018The black hole solutions in higher-dimensional spacetimes with the presence of the power-Maxwell field, surrounded by quintessence, are investigated for Einstein as well as Rastall gravity. The obtained solutions accommodate for spherical, planar and ... More
Quantum Plain and Carry Look-Ahead AddersJun 05 2002In this paper, two quantum networks for the addition operation are presented. One is the Modified Quantum Plain (MQP) adder, and the other is the Quantum Carry Look-Ahead (QCLA) adder. The MQP adder is obtained by modifying the Conventional Quantum Plain ... More
Spin-dependent tunneling through a symmetric semiconductor barrier: the Dresselhaus effectSep 26 2005Sep 27 2005Spin-dependent tunneling through a symmetric semiconductor barrier is studied including the k^3 Dresselhaus effect. The spin-dependent transmission of electron can be obtained analytically. By comparing with previous work(Phys. Rev. B 67. R201304 (2003) ... More
Single-pixel imaging with origami pattern constructionMar 27 2019Single-pixel compressive imaging can recover images from a small amount of measurements, offering many benefits especially for the scenes where the array detection is unavailable. However, the widely used random patterns fail to explore internal relations ... More
Spin states in InAs/AlSb/GaSb semiconductor quantum wellsDec 30 2008Nov 04 2009We investigate theoretically the spin states in InAs/AlSb/GaSb broken-gap quantum wells by solving the Kane model and the Poisson equation self-consistently. The spin states in InAs/AlSb/GaSb quantum wells are quite different from those obtained by the ... More
Production of $ΛΛ$ and $\bar{Λ\text{n}}$ in central Pb+Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV within a covariant coalescence modelJul 14 2016Dec 09 2016We study the production of $\Lambda\Lambda$ and $\overline{\Lambda \text{n}}$ exotic states in central Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV at LHC via both hadron and quark coalescence within a covariant coalescence model with a blast-wave-like ... More
Bayesian Optimal Data Detector for mmWave OFDM System with Low-Resolution ADCApr 12 2017Orthogonal frequency division multiplexing (OFDM) has been widely used in communication systems operating in the millimeter wave (mmWave) band to combat frequency-selective fading and achieve multi-Gbps transmissions, such as IEEE 802.15.3c and IEEE 802.11ad. ... More
Fermions Tunneling from Higher-Dimensional Reissner-Nordström Black Hole: Semiclassical and Beyond Semiclassical ApproximationMar 11 2009Aug 25 2016Based on semiclassical tunneling method, we focus on charged fermions tunneling from higher-dimensional Reissner-Nordstr\"{o}m black hole. We first simplify the Dirac equation by semiclassical approximation, and then a semiclassical Hamilton-Jacobi equation ... More
Analytical coalescence formula for particle production in relativistic heavy-ion collisionsJan 08 2017Mar 27 2017Based on a covariant coalescence model with a blast-wave-like parametrization for the phase-space configuration of constituent particles at freeze-out, we derive an approximate analytical formula for the yields of clusters produced in relativistic heavy-ion ... More
Antimatter $^4_Λ$H Hypernucleus Production and the $^3_Λ$H/$^3$He Puzzle in Relativistic Heavy-Ion CollisionsDec 02 2015Jun 18 2016We show that the measured yield ratio $^3_{\Lambda}$H/$^3$He ($^3_{\overline{\Lambda}}\overline{\text{H}}$/$^3\overline{\text{He}}$) in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV and in Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV can be understood within ... More
Scars in Dirac fermion systems: the influence of an Aharonov--Bohm fluxMay 09 2017Time-reversal ($\mathcal{T}$-) symmetry is fundamental to many physical processes. Typically, $\mathcal{T}$-breaking for microscopic processes requires the presence of magnetic field. However, for 2D massless Dirac billiards, $\mathcal{T}$-symmetry is ... More
When to Finish? Optimal Beam Search for Neural Text Generation (modulo beam size)Aug 31 2018In neural text generation such as neural machine translation, summarization, and image captioning, beam search is widely used to improve the output text quality. However, in the neural generation setting, hypotheses can finish in different steps, which ... More
General Green's function formalism for layered systems: Wave function approachDec 09 2016Feb 17 2017The single-particle Green's function (GF) of mesoscopic structures plays a central role in mesoscopic quantum transport. The recursive GF technique is a standard tool to compute this quantity numerically, but it lacks physical transparency and is limited ... More
Bayesian Optimal Data Detector for Hybrid mmWave MIMO-OFDM Systems with Low-Resolution ADCsMar 25 2018Hybrid analog-digital precoding architectures and low-resolution analog-to-digital converter (ADC) receivers are two solutions to reduce hardware cost and power consumption for millimeter wave (mmWave) multiple-input multiple-output (MIMO) communication ... More
Generation of ice states through deep reinforcement learningMar 12 2019We present a deep reinforcement learning framework where a machine agent is trained to search for a policy to generate a ground state for the square ice model by exploring the physical environment. After training, the agent is capable of proposing a sequence ... More
Aggregation of BiTe Monolayer on Bi$_2$Te$_3$(111) Induced by Diffusion of Intercalated Atoms in van der Waals GapMar 15 2017We report a post-growth aging mechanism of Bi$_2$Te$_3$(111) films with scanning tunneling microscopy in combination with density functional theory calculation. It is found that a monolayered structure with a squared lattice symmetry gradually aggregates ... More
Field test of a practical secure communication network with decoy-state quantum cryptographyOct 07 2008Apr 26 2009We present a secure network communication system that operated with decoy-state quantum cryptography in a real-world application scenario. The full key exchange and application protocols were performed in real time among three nodes, in which two adjacent ... More
Exact one-periodic and two-periodic wave solutions to Hirota bilinear equations in 2+1 dimensionsDec 23 2008Riemann theta functions are used to construct one-periodic and two-periodic wave solutions to a class of (2+1)-dimensional Hirota bilinear equations. The basis for the involved solution analysis is the Hirota bilinear formulation, and the particular dependence ... More
Sparse Representation of a Blur Kernel for Blind Image RestorationDec 14 2015Blind image restoration is a non-convex problem which involves restoration of images from an unknown blur kernel. The factors affecting the performance of this restoration are how much prior information about an image and a blur kernel are provided and ... More
Modular extensions of unitary braided fusion categories and 2+1D topological/SPT orders with symmetriesFeb 18 2016Sep 20 2016A finite bosonic or fermionic symmetry can be described uniquely by a symmetric fusion category $\mathcal{E}$. In this work, we propose that 2+1D topological/SPT orders with a fixed finite symmetry $\mathcal{E}$ are classified, up to $E_8$ quantum Hall ... More
The Phase Shifts of the Paired Wings of Butterfly DiagramsJun 11 2010Sunspot groups observed by Royal Greenwich Observatory/US Air Force/NOAA from May 1874 to November 2008 and the Carte Synoptique solar filaments from March 1919 to December 1989 are used to investigate the relative phase shift of the paired wings of butterfly ... More
Mining Circumgalactic Baryons in the Low-Redshift UniverseFeb 14 2014Sep 11 2014(Abridged) This paper presents an absorption-line study of the multiphase circumgalactic medium (CGM) based on observations of Lya, CII, CIV, SiII, SiIII, and SiIV absorption transitions in the vicinities of 195 galaxies at redshift z<0.176. The galaxy ... More
Vanishing Mean Oscillation Spaces Associated with Operators Satisfying Davies-Gaffney EstimatesJul 22 2011Let $(\mathcal{X}, d, \mu)$ be a metric measure space, $L$ a linear operator which has a bounded $H_\infty$ functional calculus and satisfies the Davies-Gaffney estimate, $\Phi$ a concave function on $(0,\infty)$ of critical lower type $p_\Phi^-\in(0,1]$ ... More
A theory of 2+1D fermionic topological orders and fermionic/bosonic topological orders with symmetriesJul 16 2015Aug 27 2015We propose that, up to invertible topological orders, 2+1D fermionic topological orders without symmetry and 2+1D fermionic/bosonic topological orders with symmetry $G$ are classified by non-degenerate unitary braided fusion categories (UBFC) over a symmetric ... More
Boundary-bulk relation in topological ordersFeb 02 2017Jul 12 2017In this paper, we study the relation between an anomaly-free $n+$1D topological order, which are often called $n+$1D topological order in physics literature, and its $n$D gapped boundary phases. We argue that the $n+$1D bulk anomaly-free topological order ... More
Dependence of low redshift Type Ia Supernovae luminosities on host galaxiesMay 10 2013We study the relation of Type Ia Supernovae (SNe Ia) with host galaxies from a large low redshift sample. By examining the Hubble residuals of the entire sample from the best-fit cosmology, we show that SNe Ia in passive hosts are brighter than those ... More
Effects of impurity on fidelity of quantum state transfer via spin channelsDec 04 2011By adopting the concept of fidelity, we investigated efficiency of quantum state transfer with the XX chain as the quantum channel. Different from the previous works, we concentrated on effects of spin and magnetic impurity on fidelity of quantum state ... More
Dark Periods in Rabi Oscillations of Superconducting Phase Qubit Coupled to a Microscopic Two-Level SystemJun 24 2009Sep 11 2009We proposed a scheme to demonstrate macroscopic quantum jumps in a superconducting phase qubit coupled to a microscopic two-level system in the Josephson tunnel junction. Irradiated with suitable microwaves, the Rabi oscillations of the qubit exhibit ... More
2.4GHZ Class AB power Amplifier For Healthcare ApplicationMay 09 2016The objective of this research was to design a 2.4 GHz class AB Power Amplifier, with 0.18 um SMIC CMOS technology by using Cadence software, for health care applications. The ultimate goal for such application is to minimize the trade-offs between performance ... More
A classification of 3+1D bosonic topological orders (I): the case when point-like excitations are all bosonsApr 13 2017Jan 08 2018Topological orders are new phases of matter beyond Landau symmetry breaking. They correspond to patterns of long-range entanglement. In recent years, it was shown that in 1+1D bosonic systems there is no nontrivial topological order, while in 2+1D bosonic ... More
Boundary-bulk relation for topological orders as the functor mapping higher categories to their centersFeb 05 2015Oct 22 2015In this paper, we study the relation between topological orders and their gapped boundaries. We propose that the bulk for a given gapped boundary theory is unique. It is actually a consequence of a microscopic definition of a local topological order, ... More
Relativistic Shear Flow Between Electron-Ion and Electron-Positron Plasmas and Astrophysical ApplicationsDec 22 2016We present Particle-in-Cell simulation results of relativistic shear boundary layers between electron-ion and electron-positron plasmas and discuss their potential applications to astrophysics. Specifically, we find in the case of a fast electron-positron ... More
Landau levels of cold dense quark matter in a strong magnetic fieldJun 30 2016Jul 11 2016The occupied Landau levels of strange quark matter are investigated in the framework of the SU(3) NJL model with a conventional coupling and a magnetic-field dependent coupling respectively. At lower density, the Landau levels are mainly dominated by ... More
Classification of 2+1D topological orders and SPT orders for bosonic and fermionic systems with on-site symmetriesFeb 18 2016Feb 14 2017Gapped quantum liquids (GQL) include both topologically ordered states (with long range entanglement) and symmetry protected topological (SPT) states (with short range entanglement). In this paper, we propose a classification of 2+1D GQL for both bosonic ... More
Feasibility study on the least square method for fitting non-Gaussian noise dataMay 03 2017Jun 13 2017This study is to investigate the feasibility of least square method in fitting non-Gaussian noise data. We add different levels of the two typical non-Gaussian noises, L\'evy and stretched Gaussian noises, to exact value of the selected functions including ... More
Inductive Kernel Low-rank Decomposition with Priors: A Generalized Nystrom MethodJun 18 2012Low-rank matrix decomposition has gained great popularity recently in scaling up kernel methods to large amounts of data. However, some limitations could prevent them from working effectively in certain domains. For example, many existing approaches are ... More
Tail wavelets in the merger of binary compact objectsMar 21 2019We present a model for tail wavelets, a phenomenon also known as "echo" in the literature. The tail wavelet may appear in signal reconnaissances in the merger of binary compact objects, including black holes and neutron stars. It follows main gravitational ... More
Coexistence of antiferromagnetism and topological superconductivity on honeycomb lattice Hubbard modelSep 24 2017Motivated by the recent numerical simulations for doped $t$-$J$ model on honeycomb lattice, we study superconductivity of singlet and triplet pairing on honeycomb lattice Hubbard model. We show that a superconducting state with coexisting spin-singlet ... More
Jointly Trained Sequential Labeling and Classification by Sparse Attention Neural NetworksSep 28 2017Sentence-level classification and sequential labeling are two fundamental tasks in language understanding. While these two tasks are usually modeled separately, in reality, they are often correlated, for example in intent classification and slot filling, ... More
Multi-level Wavelet-CNN for Image RestorationMay 18 2018May 22 2018The tradeoff between receptive field size and efficiency is a crucial issue in low level vision. Plain convolutional networks (CNNs) generally enlarge the receptive field at the expense of computational cost. Recently, dilated filtering has been adopted ... More
Charged Einstein-æther black holes in $n$-dimensional spacetimeApr 22 2017Jan 10 2019In this work, we investigate the $n$-dimensional charged static black hole solutions in the Einstein-\ae ther theory. By taking the metric parameter $k$ to be $1,0$, and $-1$, we obtain the spherical, planar, and hyperbolic spacetimes respectively. Three ... More
Scalar Quasinormal Modes of Anti-de Sitter Static Spacetime in Horava-Lifshitz Gravity with $U(1)$ SymmetrySep 19 2016In this paper, we investigate the scalar quasinormal modes of Ho\v{r}ava-Lifshitz theory with $U(1)$ symmetry in static Anti-de Sitter spacetime. The static planar and spherical black hole solutions in lower energy limit are derived in non-projectable ... More
(Anti-) de Sitter Electrically Charged Black Hole Solutions in Higher-Derivative GravityJul 15 2016In this paper, static electrically charged black hole solutions with cosmological constant are investigated in an Einstein-Hilbert theory of gravity with additional quadratic curvature terms. Beside the analytic Schwarzschild (Anti-) de Sitter solutions, ... More
In-Plane Ferroelectric Tunnel JunctionJul 19 2018Feb 21 2019The ferroelectric material is an important platform to realize non-volatile memories. So far, existing ferroelectric memory devices utilize out-of-plane polarization in ferroelectric thin films. In this paper, we propose a new type of random-access memory ... More
Transformable Biomimetic Liquid Metal ChameleonJul 25 2017Liquid metal (LM) is of current core interest for a wide variety of newly emerging areas. However, the functional materials thus made so far by LM only could display a single silver-white appearance. Here in this study, the new conceptual colorful LM ... More
Relativistic baryon-baryon interactions in chiral perturbation theorySep 29 2017We report on the recent studies of leading order baryon-baryon interactions in covariant baryon chiral perturbation theory. In the strangeness $S=0$ sector, one can achieve a rather good description of the Nijmegen $np$ phase shifts with angular momenta ... More
Deep Learning-based CSI Feedback Approach for Time-varying Massive MIMO ChannelsJul 31 2018Massive multiple-input multiple-output (MIMO) systems rely on channel state information (CSI) feedback to perform precoding and achieve performance gain in frequency division duplex (FDD) networks. However, the huge number of antennas poses a challenge ... More
The Lax pairs for elliptic C_n and BC_n Ruijsenaars-Schneider models and their spectral curvesNov 16 2000Jan 21 2001We study the elliptic C_n and BC_n Ruijsenaars-Schneider models which is elliptic generalization of system given in hep-th/0006004. The Lax pairs for these models are constructed by Hamiltonian reduction technology. We show that the spectral curves can ... More
Extracting strange quark freeze-out information in Pb+Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV from $φ$ and $Ω$ productionAug 13 2018Dec 04 2018Using a covariant quark coalescence model combined with a blast-wave-like analytical parametrization for (anti-)strange quark phase-space freeze-out configuration, we extract information on strange quark freeze-out dynamics in Pb+Pb collisions at $\sqrt{s_{NN}}$=2.76 ... More
Improved three-dimensional color-gradient lattice Boltzmann model for immiscible multiphase flowsApr 07 2019In this paper, an improved three-dimensional color-gradient lattice Boltzmann (LB) model is proposed for simulating immiscible multiphase flows. Compared with the previous three-dimensional color-gradient LB models, which suffer from the lack of Galilean ... More
Study on space-time structure of Higgs boson decay using HBT correlation Method in e$^+$e$^-$ collision at $\sqrt{s}$=250 GeVMay 17 2017The space-time structure of the Higgs boson decay are carefully studied with the HBT correlation method using e$^+$e$^-$ collision events produced through Monte Carlo generator PYTHIA 8.2 at $\sqrt{s}$=250GeV. The Higgs boson jets (Higgs-jets) are identified ... More
Twist-4 contributions to semi-inclusive $e^+e^-$-annihilation processJul 03 2017We present the complete twist-4 results for the semi-inclusive annihilation process $e^+ +e^- \to h+ \bar q+X$ at the tree level of perturbative quantum chromodynamics. The calculations are carried out by using the formalism obtained by applying the collinear ... More
Generalized Turbo Signal Recovery for Nonlinear Measurements and Orthogonal Sensing MatricesDec 15 2015May 05 2016In this study, we propose a generalized turbo signal recovery algorithm to estimate a signal from quantized measurements, in which the sensing matrix is a row-orthogonal matrix, such as the partial discrete Fourier transform matrix. The state evolution ... More
On the Rigid Cohomology of Certain Shimura VarietiesNov 25 2014We construct the compatible system of $l$-adic representations associated to a regular algebraic cuspidal automorphic representation of $GL_n$ over a CM (or totally real) field and check local-global compatibility for the $l$-adic representation away ... More
Uplink Achievable Rate for Massive MIMO with Low-Resolution ADCDec 02 2015In this letter, we derive an approximate analytical expression for the uplink achievable rate of a massive multi-input multi-output (MIMO) antenna system when finite precision analog-digital converters (ADCs) and the common maximal ratio combining technique ... More
A Data-Aided Channel Estimation Scheme for Decoupled Systems in Heterogeneous NetworksMay 03 2018Uplink/downlink (UL/DL) decoupling promises more flexible cell association and higher throughput in heterogeneous networks (HetNets), however, it hampers the acquisition of DL channel state information (CSI) in time-division-duplex (TDD) systems due to ... More
Deep Learning-based Channel Estimation for Beamspace mmWave Massive MIMO SystemsFeb 05 2018Jan 14 2019Channel estimation is very challenging when the receiver is equipped with a limited number of radio-frequency (RF) chains in beamspace millimeter-wave (mmWave) massive multiple-input and multiple-output systems. To solve this problem, we exploit a learned ... More
Beamspace Channel Estimation in mmWave Systems via Cosparse Image Reconstruction TechniqueJul 28 2017This paper considers the beamspace channel estimation problem in 3D lens antenna array under a millimeter-wave communication system. We analyze the focusing capability of the 3D lens antenna array and the sparsity of the beamspace channel response matrix. ... More
Thermal gravitational-wave background in the general pre-inflationary scenarioAug 15 2016Jan 16 2017We investigate the primordial gravitational waves (PGWs) in the general scenario where the inflation is preceded by a pre-inflationary stage with the effective equation of state $w$. Comparing with the results in the usual inflationary models, the power ... More