total 12664took 0.13s

Stochastic closest-pair problem and most-likely nearest-neighbor search in tree spacesDec 15 2016Let $T$ be a tree space (or tree network) represented by a weighted tree with $t$ vertices, and $S$ be a set of $n$ stochastic points in $T$, each of which has a fixed location with an independent existence probability. We investigate two fundamental ... More

Colored stochastic dominance problemsDec 21 2016Feb 25 2018In this paper, we study the dominance relation under a stochastic setting. Let $\mathcal{S}$ be a set of $n$ colored stochastic points in $\mathbb{R}^d$, each of which is associated with an existence probability. We investigate the problem of computing ... More

Parameterized Algorithms for Constraint Satisfaction Problems Above Average with Global Cardinality ConstraintsNov 02 2015Oct 19 2016Given a constraint satisfaction problem (CSP) on $n$ variables, $x_1, x_2, \dots, x_n \in \{\pm 1\}$, and $m$ constraints, a global cardinality constraint has the form of $\sum_{i = 1}^{n} x_i = (1-2p)n$, where $p \in (\Omega(1), 1 - \Omega(1))$ and $pn$ ... More

Nonadiabatic geometric quantum computation with parametrically tunable couplingAug 08 2018Nov 22 2018The nonadiabatic geometric quantum computation is promising as it is robust against certain types of local noises. However, its experimental implementation is challenging due to the need of complex control on multi-level and/or multiple quantum systems. ... More

X-ray Spectral Variability of TeV Blazars during Rapid FlaresApr 25 2006May 08 2006The spectral energy distribution (SED) of TeV blazars peaks both at keV and TeV energies. The X-ray emission is generally believed to originate in the synchrotron emission from relativistic electrons (and positrons) in the jet of these sources, while ... More

A Comparative Analysis of Materialized Views Selection and Concurrency Control Mechanisms in NoSQL DatabasesOct 04 2017Increasing resource demands require relational databases to scale. While relational databases are well suited for vertical scaling, specialized hardware can be expensive. Conversely, emerging NewSQL and NoSQL data stores are designed to scale horizontally. ... More

On the Separability of Stochastic Geometric Objects, with ApplicationsMar 22 2016Apr 05 2016In this paper, we study the linear separability problem for stochastic geometric objects under the well-known unipoint/multipoint uncertainty models. Let $S=S_R \cup S_B$ be a given set of stochastic bichromatic points, and define $n = \min\{|S_R|, |S_B|\}$ ... More

On the expected diameter, width, and complexity of a stochastic convex-hullApr 24 2017May 01 2017We investigate several computational problems related to the stochastic convex hull (SCH). Given a stochastic dataset consisting of $n$ points in $\mathbb{R}^d$ each of which has an existence probability, a SCH refers to the convex hull of a realization ... More

Nonlinear Breit-Wheeler process in the collision of a photon with two plane wavesMar 16 2014Jul 30 2014The nonlinear Breit-Wheeler process of electron-positron pair production off a probe photon colliding with a low-frequency and a high-frequency electromagnetic wave that propagate in the same direction is analyzed. We calculate the pair-production probability ... More

Mixture-based Multiple Imputation Model for Clinical Data with a Temporal DimensionAug 12 2019Aug 20 2019The problem of missing values in multivariable time series is a key challenge in many applications such as clinical data mining. Although many imputation methods show their effectiveness in many applications, few of them are designed to accommodate clinical ... More

Characteristics of Long Gamma-Ray bursts in the Comoving FrameApr 16 2019We compile a sample of 93 long gamma-ray bursts (GRBs) from Fermi satellite and 131 from Konus-Wind, which have measured redshifts and well determined spectra, and estimate their pseudo Lorentz factors (${\Gamma_0}$) using the tight ${L_{{\rm{iso}}}}$-${E_{\rm ... More

Detecting non-Abelian geometric phase in circuit QEDMar 03 2013Jul 01 2013We propose a scheme for detecting noncommutative feature of the non-Abelian geometric phase in circuit QED, which involves three transmon qubits capacitively coupled to an one-dimensional transmission line resonator. By controlling the external magnetic ... More

Hot One-Temperature Accretion Flows RevisitedSep 11 2005The effectiveness of the thermal coupling of ions and electrons in the context of optically thin, hot accretion flows is investigated. In the limit of complete coupling, we focus on the one-temperature accretion flows. Based on a global analysis, the ... More

XMO and Weighted Compact Bilinear CommutatorsSep 07 2019In this article, the authors first establish {an} equivalent characterization of the space XMO$\,(\mathbb{R}^n)$ very recently introduced by R. H. Torres and Q. Xue, and then show that XMO$\,(\mathbb{R}^n)$ is a proper subspace of the space VMO$\,(\mathbb{R}^n)$ ... More

Diffeomorphism Invariance of Geometric Descriptions of Palatini and Ashtekar GravityOct 21 1997In this paper, we explicitly prove the presymplectic forms of the Palatini and Ashtekar gravity to be zero along gauge orbits of the Lorentz and diffeomorphism groups, which ensures the diffeomorphism invariance of these theories.

Fraction of the gluonium component in $η'$ and $η$Jan 18 2011Jun 13 2011It is interesting to determine the fraction of the gluonium component in $\eta$ and $\eta'$ which has been under serious discussion for many years. Measurements on different decay and/or production modes were employed in literatures, thus larger uncertainties ... More

Spindown of magnetars: Quantum Vacuum Friction?Apr 09 2015Jun 30 2015Magnetars are proposed to be peculiar neutron stars which could power their X-ray radiation by super-strong magnetic fields as high as $\gtrsim 10^{14}$ G. However, no direct evidence for such strong fields is obtained till now, and the recent discovery ... More

Dyson-Schwinger Equations with a Parameterized MetricMay 24 2010Oct 17 2011We construct and solve the Dyson-Schwinger equation (DSE) of quark propagator with a parameterized metric, which connects the Euclidean metric with the Minkowskian one. We show, in some models, the Minkowskian vacuum is different from the Euclidean vacuum. ... More

Circuit electromechanics with single photon strong couplingJun 13 2015Jul 13 2015In circuit electromechanics, the coupling strength is usually very small. Here, replacing the capacitor in circuit electromechanics by a superconducting flux qubit, we show that the coupling among the qubit and the two resonators can induce effective ... More

Universal holonomic quantum gates in decoherence-free subspace on superconducting circuitsApr 14 2015Aug 11 2015To implement a set of universal quantum logic gates based on non-Abelian geometric phases, it is a conventional wisdom that quantum systems beyond two levels are required, which is extremely difficult to fulfil for superconducting qubits, appearing to ... More

Secure quantum dense coding via tripartite entangled GHZ state in cavity QEDNov 07 2005We investigate economic protocol to securely encoding classical information among three users via entangled GHZ states. We implement the scheme in cavity QED with atomic qubits where the atoms interact simultaneously with a highly detuned cavity mode ... More

Generating Hermite polynomial excited squeezed states by means of conditional measurements on a beam splitterMar 17 2015A scheme for conditional generating a Hermite polynomial excited squeezed vacuum states (HESVS) is proposed. Injecting a two-mode squeezed vacuum state (TMSVS) into a beam splitter (BS) and counting the photons in one of the output channels, the conditional ... More

Changing Fock matrix elements of two-mode squeezed vacuum state by employing three quantum operations in one-sided lossy channelJun 23 2019This paper focuses on changing Fock matrix elements of two-mode squeezed vacuum state (TMSVS) by employing three quantum operations in one-sided lossy channel. These three quantum operations include one-photon replacement (OPR), one-photon substraction ... More

Generation of cluster statesNov 15 2005Apr 05 2006We propose two schemes for the generation of the cluster states. One is based on cavity quantum electrodynamics (QED) techniques. The scheme only requires resonant interactions between two atoms and a single-mode cavity. The interaction time is very short, ... More

Nonadiabatic holonomic quantum computation with all-resonant controlJan 26 2016Aug 25 2016The implementation of holonomic quantum computation on superconducting quantum circuits is challenging due to the general requirement of controllable complicated coupling between multilevel systems. Here we solve this problem by proposing a scalable circuit ... More

Controllable high-fidelity quantum state transfer and entanglement generation in circuit QEDNov 24 2015We propose a scheme to realize controllable quantum state transfer and entanglement generation among transmon qubits in the typical circuit QED setup based on adiabatic passage. Through designing the time-dependent driven pulses applied on the transmon ... More

Thermal state truncation by using quantum scissors deviceJul 23 2016A non-Gaussian state being a mixture of the vacuum and single-photon states can be generated by truncating a thermal state in a quantum scissors device of Pegg et al. [Phys. Rev. Lett. 81 (1998) 1604]. In contrast to the thermal state, the generated state ... More

Magneto-thermal Disk Wind from Protoplanetary DisksNov 20 2015Global evolution and dispersal of protoplanetary disks (PPDs) is governed by disk angular momentum transport and mass-loss processes. Recent numerical studies suggest that angular momentum transport in the inner region of PPDs is largely driven by magnetized ... More

Accretion Disk Spectra of the Brightest Ultra-luminous X-ray Source in M82Nov 30 2006Emission spectra of hot accretion disks characteristic of advection dominated accretion flow (ADAF) models are investigated for comparison with the brightest ultra-luminous source, X-1, in the galaxy M82. If the spectral state of the source is similar ... More

The Drought-Stress Response of a Drought Resistant Impatiens Processed in PEG-6000 Solution in a Simulation TestNov 14 2016Premise of the Study: Impatiens is a commonly seen garden flower, renowned for its strong adaptability and long history of cultivation. However, seldom has any research touched on its physiological resistance mechanism. In this experiment, the impatiens ... More

Synthetic Augmentation and Feature-based Filtering for Improved Cervical Histopathology Image ClassificationJul 24 2019Cervical intraepithelial neoplasia (CIN) grade of histopathology images is a crucial indicator in cervical biopsy results. Accurate CIN grading of epithelium regions helps pathologists with precancerous lesion diagnosis and treatment planning. Although ... More

Parameterized Algorithms for Constraint Satisfaction Problems Above Average with Global Cardinality ConstraintsNov 02 2015Given a constraint satisfaction problem (CSP) on $n$ variables, $x_1, x_2, \dots, x_n \in \{\pm 1\}$, and $m$ constraints, a global cardinality constraint is in the form of $\sum_{i = 1}^{n} x_i = (1-2p)n$, where $p \in (\Omega(1), 1 - \Omega(1))$ and ... More

Measurement based Controlled Not gate for topological qubits in a Majorana fermion quantum-dot hybrid systemJan 27 2012Mar 03 2013We propose a scheme to implement Controlled Not-gate for topological qubits in a quantum-dot-Majorana-fermion hybrid system. Quantum information is encoded on pairs of Majorana fermions, which live on the the interface between topologically trivial and ... More

Simulation of anyonic fractional statistics of Kitaev's toric model in circuit QEDJan 11 2011Feb 19 2011Since the anyonic excitations in the Kitaev toric model are perfectly localized quasiparticles, it is possible to generate dynamically the ground state and the excitations of the model Hamiltonian to simulate the anyonic interferometry. We propose a scheme ... More

Fast geometric gate operation of superconducting charge qubits in circuit QEDJan 08 2010Jul 09 2011A scheme for coupling superconducting charge qubits via a one-dimensional superconducting transmission line resonator is proposed. The qubits are working at their optimal points, where they are immune to the charge noise and possess long decoherence time. ... More

New 3-mode squeezing operator and squeezed vacuum state in 3-wave mixingSep 14 2010In a 3-wave mixing process occurring in some nonlinear optical medium when }$a_{1}^{\dagger}${\small mode interacts with both }$a_{2}^{\dagger}% ${\small mode and }$a_{3}^{\dagger}${\small mode, we theoretically study the squeezing effect generated by ... More

Study on the mixing among the $0^{++}$ mesons around $1\sim 2$ $\mathrm{GeV}$ with the QCD sum rulesApr 12 2011Apr 18 2011We calculate the correlation functions of $0^{++}$ $q\bar q$, $s\bar s$ and glueball in the QCD sum rules and obtain the mass matrix where non-diagonal terms are determined by the cross correlations among the three states. Diagonalizing the mass matrix ... More

Generation of cluster states with Josephson charge qubitsMay 29 2006A scheme for the generation of the cluster states based on the Josephson charge qubit is proposed. The two-qubit generating case is first introduced, and then generalized to multi-qubit case. The scheme is simple and easily manipulated, because any two ... More

Constraining the Mass of the Photon with Gamma-Ray BurstsJul 12 2016One of the cornerstones of modern physics is Einstein's special relativity, with its constant speed of light and zero photon mass assumptions. Constraint on the rest mass m_{\gamma} of photons is a fundamental way to test Einstein's theory, as well as ... More

Constraining External Reverse Shock Physics of GRBs from ROTSE-III LimitsNov 07 2017Assuming that the early optical emission is dominated by the external reverse shock (RS) in the standard model of gamma-ray bursts (GRBs), we intend to constrain RS models with the initial Lorentz factor $\Gamma_0$ of the outflows based on the ROTSE-III ... More

Interplay between non-Hermiticity and non-Abelian gauge potential in topological photonicsDec 06 2018Apr 22 2019Topological phases in spinless non-Hermitian models have been widely studied both theoretically and experimentally in some artificial materials using photonics, phononics and magnon. In this work, we investigate the interplay between non-Hermitian loss ... More

Robust interface between flying and topological qubitsSep 23 2014Jun 24 2015Hybrid architectures, consisting of conventional and topological qubits, have recently attracted much attention due to their capability in consolidating the robustness of topological qubits and the universality of conventional qubits. However, these two ... More

Detecting non-Abelian statistics of Majorana fermions in quantum nanowire networksJun 25 2011Sep 20 2011We propose a scheme in semiconducting quantum nanowires structure to demonstrate the non-Abelian statistics for Majorana fermions in terms of braid group. The Majorana fermions are localized at the endpoints of semiconducting wires, which are deposited ... More

Numerical Simulation of Hot Accretion Flows (III): Revisiting wind properties using trajectory approachJan 06 2015Previous MHD simulations have shown that wind must exist in black hole hot accretion flows. In this paper, we continue our study by investigating the detailed properties of wind, such as mass flux and poloidal speed, and the mechanism of wind production. ... More

A Complete Reference of the Analytical Synchrotron External Shock Models of Gamma-Ray BurstsOct 08 2013Gamma-ray bursts are most luminous explosions in the universe. Their ejecta are believed to move towards Earth with a relativistic speed. The interaction between this "relativistic jet" and a circum burst medium drives a pair of (forward and reverse) ... More

3D Hand Shape and Pose Estimation from a Single RGB ImageMar 03 2019Apr 20 2019This work addresses a novel and challenging problem of estimating the full 3D hand shape and pose from a single RGB image. Most current methods in 3D hand analysis from monocular RGB images only focus on estimating the 3D locations of hand keypoints, ... More

Implementation of Grover search algorithm with Josephson charge qubitsSep 27 2006Mar 12 2007A scheme of implementing the Grover search algorithm based on Josephson charge qubits has been proposed, which would be a key step to scale more complex quantum algorithms and very important for constructing a real quantum computer via Josephson charge ... More

$\mathrm{BaAs_3}$: A narrow gap 2D semiconductor with vacancy-induced semiconductor-metal transitionApr 18 2019Searching for novel two-dimensional (2D) materials is highly desired in the field of nanoelectronics. We here propose a new 2D crystal barium tri-arsenide ($\mathrm{BaAs_3}$) with a series of encouraging functionalities. Being kinetically and thermally ... More

Deep Smoke SegmentationSep 04 2018Inspired by the recent success of fully convolutional networks (FCN) in semantic segmentation, we propose a deep smoke segmentation network to infer high quality segmentation masks from blurry smoke images. To overcome large variations in texture, color ... More

Quantum carpets from Gaussian sum theoryAug 29 2018In many closed quantum systems, an interesting phenomenon, called quantum carpet, can be observed, where the evolution of wave function exhibits a carpet-like pattern. The mechanism of quantum carpet is similar to the classical interference pattern of ... More

M Times Photon Subtraction-Addition Coherent Superposition Operated Odd-Schrődinger-cat State: Nonclassicality and DecoherenceJul 26 2014We introduce a new non-Gaussian state, generated by m times coherent superposition operation $a\cos \theta +a^{\dagger }e^{i\varphi }\sin \theta $ (MCSO) on odd-Schrodinger-cat state (OSCS). Its normalized constant is turned out to be related with the ... More

Fast Radio Bursts from the Inspiral of Double Neutron StarsMar 07 2016Apr 14 2016In this paper we propose that a fast radio burst (FRB) could originate from the magnetic interaction between double neutron stars (NSs) during their final inspiral within the framework of a unipolar inductor model. In this model, an electromotive force ... More

Quantum controlled phase gate and cluster states generation via two superconducting quantum interference devices in a cavityJul 06 2006A scheme for implementing 2-qubit quantum controlled phase gate (QCPG) is proposed with two superconducting quantum interference devices (SQUIDs) in a cavity. The gate operations are realized within the two lower flux states of the SQUIDs by using a quantized ... More

A unified binary neutron star merger magnetar model for the Chandra X-ray transients CDF-S XT1 and XT2Aug 03 2019Two bright X-ray transients were reported from the Chandra Deep Field South archival data, namely CDF-S XT1 and XT2. Whereas the nature of the former is not identified, the latter was suggested as an excellent candidate for a rapidly spinning magnetar ... More

SDSS J094635.06+101706.1: a redshift one, very radio-loud, γ-ray emitting narrow-line Seyfert 1 galaxyJun 07 2019As hybrids of narrow-line Seyfert 1 (NLS1) galaxies and blazars, {\gamma}-ray emitting NLS1s are important probes of jet physics in the high Eddington-ratio regime. Only very few of them are known to date; the majority of them below redshift z = 0.5. ... More

Towards Simultaneous Observation of Path and Interference of Single Photon in a Modified Mach-Zehnder InterferometerAug 14 2019Classical wisdom of wave-particle duality says that it is impossible to observe simultaneously the wave and particle nature of microscopic object. Mathematically the principle requests that the interference visibility V and which-path distinguishability ... More

High cumulants of conserved charges and their statistical uncertaintiesSep 07 2017We study the influence of measured high cumulants of conserved charges on their associated statistical uncertainties in relativistic heavy-ion collisions. With a given number of events, the measured cumulants randomly fluctuate with an approximately normal ... More

Probing non-Abelian anyonic statistics with cold atoms in an optical latticeApr 01 2013May 30 2013We propose a scheme to probe the non-Abelian statistics of the collective anyonic excitation in Kitaev's honeycomb model with cold atoms in an optical lattice. The generation of the anyonic excitation can be realized by simple rotating operation acting ... More

Producing GHZ state of nitrogen-vacancy centers in cavity QEDApr 01 2013Jun 04 2013We propose a scheme to generate GHZ state of nitrogen-vacancy centers coupled to a whispering-gallery mode cavity. The implemented evolution is independent on the cavity field state with the assistant of a strong classical field, and thus not sensitive ... More

Observation of topological magnon insulator states in a superconducting circuitJan 17 2019Sep 03 2019Searching topological states in artificial systems has recently become a rapidly growing field of research. Meanwhile, significant experimental progresses on observing topological phenomena have been made in superconducting circuits. However, topological ... More

Lifshitz effects on holographic $p$-wave superfluidDec 11 2014In the probe limit, we numerically build a holographic $p$-wave superfluid model in the four-dimensional Lifshitz black hole coupled to a Maxwell-complex vector field. We observe the rich phase structure and find that the Lifshitz dynamical exponent $z$ ... More

Planar penta-transition metal phosphide and arsenide as narrow-bandgap semiconductors from first principle calculationsNov 12 2018Searching for materials with single atom-thin as well as planar structure, like graphene and borophene, is one of the most attractive themes in two dimensional materials. Herein, using density functional theory calculations, we have proposed a series ... More

Direct conversion of a three-atom W state to a Greenberger-Horne-Zeilinger state in spatially separated cavitiesJan 13 2016State conversion between Greenberger-Horne-Zeilinger (GHZ) state and W state is an open challenging problem because they cannot be converted to each other only by local operations and classical communication. Here we propose a cavity quantum electrodynamics ... More

Quantum simulation of exotic PT-invariant topological nodal loop bands with ultracold atoms in an optical latticeJan 04 2016Apr 20 2016Since the well-known PT symmetry has its fundamental significance and implication in physics, where PT denotes the combined operation of space-inversion P and time-reversal T, it is extremely important and intriguing to completely classify exotic PT-invariant ... More

Modeling the hard states of XTE J1550--564 during its 2000 outburstAug 25 2006Dec 26 2006We study hard states of the black-hole binary XTE J1550--564 during its 2000 outburst. In order to explain those states at their highest luminosities, $L\sim 10%$ of the Eddington luminosity, $L_{\rm E}$, we propose a specific hot accretion flow model. ... More

Ultraviolet to Near-infrared Single Photon Emitters in hBNAug 19 2019Aug 21 2019In the field of quantum photon sources, single photon emitter from solid is of fundamental importance for quantum computing, quantum communication, and quantum metrology. However, it has been an ultimate but seemingly distant goal to find the single photon ... More

Single-step multipartite entangled states generation from coupled circuit cavitiesMar 27 2019Green-Horne-Zeilinger states are a typical type of multipartite entangled states, which plays a central role in quantum information processing. For the generation of multipartite entangled states, the single-step method is more preferable as the needed ... More

Denoising-based Turbo Compressed SensingMar 26 2017Turbo compressed sensing (Turbo-CS) is an efficient iterative algorithm for sparse signal recovery with partial orthogonal sensing matrices. In this paper, we extend the Turbo-CS algorithm to solve compressed sensing problems involving more general signal ... More

Generating single-photon catalyzed coherent states with quantum-optical catalysisDec 26 2015We generate single-photon catalyzed coherent states (SPCCSs) by means of quantum-optical catalysis based on the beam splitter (BS) or the parametric amplifier (PA). These states are obtained in one of the BS (or PA) output channels if a coherent state ... More

Career Choice as an Extended Spatial Evolutionary Public Goods GameJul 31 2019We propose an extended spatial evolutionary public goods game (SEPGG) model to study the dynamics of individual career choice and the corresponding social output. Based on the social value orientation theory, we categorized two classes of work, namely ... More

Nonadiabatic holonomic quantum computation on coupled transmons with ancillariesAug 01 2018Nov 14 2018The physical implementation of holonomic quantum computation is challenging due to the needed complex controllable interactions in multilevel quantum systems. Here we propose to implement nonadiabatic holonomic quantum computation with conventional capacitive ... More

Design and Implementation of Intelligent Community System Based on Thin Client and Cloud ComputingSep 10 2014With the continuous development of science and technology, the intelligent development of community system becomes a trend. Meanwhile, smart mobile devices and cloud computing technology are increasingly used in intelligent information systems; however, ... More

Automatic Graphics Program Generation using Attention-Based Hierarchical DecoderOct 26 2018Recent progress on deep learning has made it possible to automatically transform the screenshot of Graphic User Interface (GUI) into code by using the encoder-decoder framework. While the commonly adopted image encoder (e.g., CNN network), might be capable ... More

Demonstration of quantum Zeno effect in a superconducting phase qubitApr 21 2011Apr 22 2011Quantum Zeno effect is a significant tool in quantum manipulating and computing. We propose its observation in superconducting phase qubit with two experimentally feasible measurement schemes. The conventional measurement method is used to achieve the ... More

Ultraviolet to Near-infrared Single Photon Emitters in hBNAug 19 2019Aug 20 2019In the field of quantum photon sources, single photon emitter from solid is of fundamental importance for quantum computing, quantum communication, and quantum metrology. However, it has been an ultimate but seemingly distant goal to find the single photon ... More

Spatial Mixture Models with Learnable Deep Priors for Perceptual GroupingFeb 07 2019Humans perceive the seemingly chaotic world in a structured and compositional way with the prerequisite of being able to segregate conceptual entities from the complex visual scenes. The mechanism of grouping basic visual elements of scenes into conceptual ... More

Fast holonomic quantum computation on superconducting circuits with optimal controlMay 27 2019The phase factor plays a vital role in modern quantum physics. Especially, geometric phases induced in quantum evolutions have the built-in noise-resilient character, and thus found comprehensive applications in many robust quantum manipulation tasks. ... More

Mechanism of High-Order Harmonic Generation from Periodic PotentialsJun 21 2016We study numerically the Bloch electron wave-packet dynamics in periodic potentials to simulate laser-solid interactions. We introduce a quasi-classical model in the \emph{k} space combined with the energy band structure to understand the high-order harmonic ... More

Fast holonomic quantum computation on superconducting circuits with optimal controlMay 27 2019Jul 03 2019The phase factor plays a vital role in modern quantum physics. Especially, geometric phases induced in quantum evolutions have the built-in noise-resilient character, and thus found comprehensive applications in many robust quantum manipulation tasks. ... More

Spatial Mixture Models with Learnable Deep Priors for Perceptual GroupingFeb 07 2019Apr 29 2019Humans perceive the seemingly chaotic world in a structured and compositional way with the prerequisite of being able to segregate conceptual entities from the complex visual scenes. The mechanism of grouping basic visual elements of scenes into conceptual ... More

Deep CFHT Y-band Imaging of VVDS-F22 Field: II. Quasar Selection and Quasar Luminosity FunctionJan 04 2018We report the result of a faint quasar survey in a one square degree field. The aim is to test the Y-K/g-z and J-K/i-Y color selection criteria for quasars at faint magnitude, to obtain a complete sample of quasars based on deep optical and near-infrared ... More

Mixture-based Multiple Imputation Models for Clinical Data with a Temporal DimensionAug 12 2019The problem of missing values in multivariable time series is a key challenge in many applications such as clinical data mining. Although many imputation methods show their effectiveness in many applications, few of them are designed to accommodate clinical ... More

Topic-Guided Attention for Image CaptioningJul 10 2018Attention mechanisms have attracted considerable interest in image captioning because of its powerful performance. Existing attention-based models use feedback information from the caption generator as guidance to determine which of the image features ... More

Simple unconventional geometric scenario of one-way quantum computation with superconducting qubits inside a cavityMar 12 2007Apr 23 2007We propose a simple unconventional geometric scenario to achieve a kind of nontrivial multi-qubit operations with superconducting charge qubits placed in a microwave cavity. The proposed quantum operations are insensitive not only to the thermal state ... More

Thermodynamic potential of a mechanical constitutive model for two-phase band flowNov 10 2008Starting from a simple mechanical constitutive model (the non-local diffusive Johnson-Segalman model; DJS model), we provide a rigorous theoretical explanation as to why a unique value of the stress plateau of a highly sheared viscoelastic fluid is stably ... More

D-OAMP: A Denoising-based Signal Recovery Algorithm for Compressed SensingOct 19 2016Approximate message passing (AMP) is an efficient iterative signal recovery algorithm for compressed sensing (CS). For sensing matrices with independent and identically distributed (i.i.d.) Gaussian entries, the behavior of AMP can be asymptotically described ... More

Quantum simulation of photosynthetic energy transferJan 29 2018Jan 30 2018Near-unity energy transfer efficiency has been widely observed in natural photosynthetic complexes. This phenomenon has attracted broad interest from different fields, such as physics, biology, chemistry and material science, as it may offer valuable ... More

Constraints on the Photon Mass with Fast Radio BurstsFeb 25 2016Apr 11 2016Fast radio bursts (FRBs) are radio bursts characterized by millisecond durations, high Galactic latitude positions, and high dispersion measures. Very recently, the cosmological origin of FRB 150418 has been confirmed by \cite{kea16}, and FRBs are now ... More

Distinct fingerprints of charge density waves and electronic standing waves in ZrTe$_3$May 16 2019Experimental signatures of charge density waves (CDW) in high-temperature superconductors have evoked much recent interest, yet an alternative interpretation has been theoretically raised based on electronic standing waves resulting from quasiparticles ... More

Measurement of the transfer function for a spoke cavity of C-ADS Injector IAug 30 2016Dec 25 2016The spoke cavities mounted in the China Accelerator Driven sub-critical System (C-ADS) have high quality factor(Q) and very small bandwidth, making them very sensitive to mechanical perturbations whether external or self-induced. The transfer function ... More

Calculation of the minimum computational complexity based on information entropyMar 08 2012In order to find out the limiting speed of solving a specific problem using computer, this essay provides a method based on information entropy. The relationship between the minimum computational complexity and information entropy change is illustrated. ... More

The survival probability of the high-dimensional contact process with random vertex weights on the oriented latticeSep 12 2017This paper is a further study of Reference \cite{Xue2015}. We are concerned with the contact process with random vertex weights on the oriented lattice. Our main result gives the asymptotic behavior of the survival probability of the process conditioned ... More

The moderate deviation of the density-dependent population processAug 10 2019The density-dependent population process (DDPP) introduced in \cite{Kurtz1978} is a continuous time Markov process applied in fields such as epidemics, chemical reactions and so on. In this paper we are concerned with the moderate deviation of DDPP, inspired ... More

Asymptotic Behavior of Critical Infection Rates for Threshold-one Contact Processes on Lattices and Regular TreesNov 29 2013In this paper we study threshold-one contact processes on lattices and regular trees. The asymptotic behavior of the critical infection rates as the degrees of the graphs growing to infinity are obtained. Defining \lambda_c as the supremum of infection ... More

Arnold Diffusion in a Restricted Planar Four-Body ProblemOct 15 2012Jan 06 2014This paper constructs a certain planar four-body problem which exhibits fast energy growth. The system considered is a quasi-periodic perturbation of the Restricted Planar Circular three-body Problem (RPC3BP). Gelfreich-Turaev's and de la Llave's mechanism ... More

Existence of noncontractible periodic orbits of Hamiltonian system separating two Lagrangian tori on $T^*\T^n$ with application to non convex Hamiltonian systemsAug 22 2014Jun 08 2016In this paper, we show the existence of non contractible periodic orbits in Hamiltonian systems defined on $T^*\T^n$ separating two Lagrangian tori under certain cone assumption. Our result answers a question of Polterovich in \cite{P} in a sharp way. ... More

Rigidity for local holomorphic isometric embeddings from ${\BB}^n$ into ${\BB}^{N_1}\times... \times{\BB}^{N_m}$ up to conformal factorsJan 18 2010Nov 17 2011In this article, we study local holomorphic isometric embeddings from ${\BB}^n$ into ${\BB}^{N_1}\times... \times{\BB}^{N_m}$ with respect to the normalized Bergman metrics up to conformal factors. Assume that each conformal factor is smooth Nash algebraic. ... More

Colored range closest-pair problem under general distance functionsJul 26 2018The range closest-pair (RCP) problem is the range-search version of the classical closest-pair problem, which aims to store a given dataset of points in some data structure such that when a query range $X$ is specified, the closest pair of points contained ... More

Noncollision Singularities in a Planar Four-body ProblemAug 29 2014Sep 14 2014In this paper, we show that there is a Cantor set of initial conditions in a planar four-body problem such that all the four bodies escape to infinity in finite time avoiding collisions. This proves the Painlev\'e conjecture for the four-body case, thus ... More

Continuous averaging proof of the Nekhoroshev theoremOct 15 2012In this paper we develop the continuous averaging method of Treschev to work on the simultaneous Diophantine approximation and apply the result to give a new proof of the Nekhoroshev theorem. We obtain a sharp normal form theorem and an explicit estimate ... More