Results for "Lu Cao"

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Tensorization of the strong data processing inequality for quantum chi-square divergencesApr 13 2019Quantifying the contraction of classical and quantum states under noisy channels is an important topic in the information theory. Among various techniques, the strong data processing inequality, as a refinement of the well-known data processing inequality, ... More
Stochastic dynamical low-rank approximation methodMar 01 2018Jun 25 2018In this paper, we extend the dynamical low-rank approximation method to the space of finite signed measures. Under this framework, we derive stochastic low-rank dynamics for stochastic differential equations (SDEs) coming from classical stochastic dynamics ... More
Transition fronts of KPP-type lattice random equationsFeb 19 2019In this paper, we investigate the existence and stability of random transition fronts of KPP-type lattice equations in random media, and explore the influence of the media and randomness on the wave profiles and wave speeds of such solutions. We first ... More
Gradient flow structure and exponential decay of the sandwiched Rényi divergence for primitive Lindblad equations with GNS-detailed balanceOct 01 2018Apr 08 2019We study the entropy production of the sandwiched R\'enyi divergence under the primitive Lindblad equation with GNS-detailed balance. We prove that the Lindblad equation can be identified as the gradient flow of the sandwiched R\'enyi divergence of any ... More
CariGANs: Unpaired Photo-to-Caricature TranslationNov 01 2018Nov 02 2018Facial caricature is an art form of drawing faces in an exaggerated way to convey humor or sarcasm. In this paper, we propose the first Generative Adversarial Network (GAN) for unpaired photo-to-caricature translation, which we call "CariGANs". It explicitly ... More
Some results on generalized strong external difference familiesSep 09 2017Nov 20 2017A generalized strong external difference family (briefly $(v, m; k_1,\dots,k_m; \lambda_1,\dots,\lambda_m)$-GSEDF) was introduced by Paterson and Stinson in 2016. In this paper, we construct some new GSEDFs for $m=2$ and use them to obtain some results ... More
TeamPhone: Networking Smartphones for Disaster RecoveryJun 10 2016Mar 26 2017In this paper, we investigate how to network smartphones for providing communications in disaster recovery. By bridging the gaps among different kinds of wireless networks, we have designed and implemented a system called TeamPhone, which provides smartphones ... More
The possible candidates of tetraquark : $Z_b(10610)$ and $Z_b(10650)$Jun 12 2011Using the chromomagnetic interaction Hamiltonian with proper account for the SU(3) flavor symmetry breaking, we have performed a schematic study on the masses of $S-$wave heavy tetraquarks as $bq\bar{b}\bar{q}$ ($q$ denotes $u$, $d$, $s$ quark). It is ... More
Study on the rare radiative decay $B_c \to D_s^*γ$ in the standard model and multiscale walking technicolor modelSep 06 1996Applying the perturbative QCD ( PQCD ) method, we study the decay $B_c\rightarrow D_s^*\gamma$ in the standard model and multiscale walking technicolor model. In the SM, we find that the contribution of weak annihilation is more important than that of ... More
Average degrees of edge-chromatic critical graphsAug 03 2017Given a graph $G$, denote by $\Delta$, $\bar{d}$ and $\chi^\prime$ the maximum degree, the average degree and the chromatic index of $G$, respectively. A simple graph $G$ is called {\it edge-$\Delta$-critical} if $\chi^\prime(G)=\Delta+1$ and $\chi^\prime(H)\le\Delta$ ... More
Almost Strong Consistency: "Good Enough" in Distributed Storage SystemsJul 07 2015Jul 15 2015A consistency/latency tradeoff arises as soon as a distributed storage system replicates data. For low latency, modern storage systems often settle for weak consistency conditions, which provide little, or even worse, no guarantee for data consistency. ... More
Real-Time Misbehavior Detection in IEEE 802.11e Based WLANsSep 13 2014The Enhanced Distributed Channel Access (EDCA) specification in the IEEE 802.11e standard supports heterogeneous backoff parameters and arbitration inter-frame space (AIFS), which makes a selfish node easy to manipulate these parameters and misbehave. ... More
A study on the rare radiative decay $B_c \to D_s^*γ$ in technicolor with scalarsSep 06 1996Applying the perturbative QCD (PQCD), we study the process $B_c\rightarrow D_s^*\gamma$ in the technicolor with a massless scalar doublet model (TCMLSM) recently presented by C. D. Carone and H. Georgi; and compare the results with that estimated in the ... More
Two constructions of asymptotically optimal codebooks via the trace functionsMay 06 2019In this paper, we present two new constructions of complex codebooks with multiplicative characters, additive characters and trace functions over finite fields, and determine the maximal cross-correlation amplitude of these codebooks. We prove that the ... More
Recent Progress of Face Image SynthesisJun 15 2017Face synthesis has been a fascinating yet challenging problem in computer vision and machine learning. Its main research effort is to design algorithms to generate photo-realistic face images via given semantic domain. It has been a crucial prepossessing ... More
SEntiMoji: An Emoji-Powered Learning Approach for Sentiment Analysis in Software EngineeringJul 04 2019Sentiment analysis has various application scenarios in software engineering (SE), such as detecting developers' emotions in commit messages and identifying their opinions on Q&A forums. However, commonly used out-of-the-box sentiment analysis tools cannot ... More
TC corrections to the single-top-quark production at the Fermilab TevatronJan 29 1997We calculate one-loop corrections to the single-top-quark production via $q\overline{q}' \to t\overline b$ at the Fermilab Tevatron from the Pseudo-Goldstone bosons ( PGBs ) in the framework of one generation technicolor model. The maximum correction ... More
A First Look at Emoji Usage on GitHub: An Empirical StudyDec 12 2018Emoji is becoming a ubiquitous language and gaining worldwide popularity in recent years including the field of software engineering (SE). As nonverbal cues, emojis are widely used in user understanding tasks such as sentiment analysis, but few work has ... More
Body Joint guided 3D Deep Convolutional Descriptors for Action RecognitionApr 24 2017Apr 25 2017Three dimensional convolutional neural networks (3D CNNs) have been established as a powerful tool to simultaneously learn features from both spatial and temporal dimensions, which is suitable to be applied to video-based action recognition. In this work, ... More
New constructions of asymptotically optimal codebooks via character sums over a local ringJun 13 2019In this paper, we present explicit description on the additive characters, multiplicative characters and Gauss sums over a local ring. As an application, based on the additive characters and multiplicative characters satisfying certain conditions, two ... More
Multiscale Technicolor and $b \to s γ$Sep 07 1996Correction to the $b\rightarrow s\gamma$ branching ratio in the multiscale walking technicolor model (MWTCM) is examined. For the original MWTCM, the correction is too large to explain the recent CLEO data. We show that if topcolor is further introduced, ... More
Lindblad equation and its semi-classical limit of the Anderson-Holstein modelApr 10 2017Jun 23 2017For multi-level open quantum system, the interaction between different levels could pose challenge to understand the quantum system both analytically and numerically. In this work, we study the approximation of the dynamics of the Anderson-Holstein model, ... More
A Statistical Study of the Magnetic Imprints of X-Class Solar FlaresMar 22 2018May 30 2019Magnetic imprints, the rapid and irreversible evolution of photospheric magnetic fields as a feedback from flares in the corona, have been confirmed by many previous studies. These studies showed that the horizontal field will permanently increase at ... More
Linearized Wenger graphsNov 30 2014Motivated by recent extensive studies on Wenger graphs, we introduce a new infinite class of bipartite graphs of the similar type, called linearized Wenger graphs. The spectrum, diameter and girth of these linearized Wenger graphs are determined.
Focal Visual-Text Attention for Visual Question AnsweringJun 05 2018May 31 2019Recent insights on language and vision with neural networks have been successfully applied to simple single-image visual question answering. However, to tackle real-life question answering problems on multimedia collections such as personal photos, we ... More
Terahertz-frequency magnon-phonon-polaritons in the strong coupling regimeNov 06 2016Feb 11 2018Strong coupling between light and matter occurs when the two interact strongly enough to form new hybrid modes called polaritons. Here we report on the strong coupling of both the electric and magnetic degrees of freedom to an ultrafast terahertz (THz) ... More
When Unsupervised Domain Adaptation Meets Tensor RepresentationsJul 19 2017Domain adaption (DA) allows machine learning methods trained on data sampled from one distribution to be applied to data sampled from another. It is thus of great practical importance to the application of such methods. Despite the fact that tensor representations ... More
Verifying PRAM Consistency over Read/Write Traces of Data ReplicasFeb 21 2013Nov 29 2013Data replication technologies enable efficient and highly-available data access, thus gaining more and more interests in both the academia and the industry. However, data replication introduces the problem of data consistency. Modern commercial data replication ... More
Quantum correlations near the exceptional pointMar 26 2019Recent advances in non-Hermitian physical systems have led to numerous novel optical phenomena and applications. However, most realizations are limited to classical systems and quantum fluctuations of light is unexplored. For the first time, we report ... More
How to Write High-quality News on Social Network? Predicting News Quality by Mining Writing StyleFeb 02 2019Rapid development of Internet technologies promotes traditional newspapers to report news on social networks. However, people on social networks may have different needs which naturally arises the question: whether can we analyze the influence of writing ... More
Complementarity in a macroscopic observationJan 30 2007Complementarity is usually considered as a phenomenon of microscopic systems. In this paper we report an experimental observation of complementarity in the correlated double-slit interference with a pseudothermal light source. The thermal light beam is ... More
Evolution and spatial distribution of Brillouin backscattering associated to hybrid acoustic modes in sub-wavelength silica microfibersJul 08 2018The spectral evolution and spatial distribution of backscattered Brillouin signals is experimentally investigated in sub-wavelength silica microfibers. The Brillouin spectrum evolution reveals the different dynamics of the various peaks, offering evidence ... More
Halftone Image Watermarking by Content Aware Double-sided Embedding Error DiffusionJul 18 2017In this paper, we carry out a performance analysis from a probabilistic perspective to introduce the EDHVW methods' expected performances and limitations. Then, we propose a new general error diffusion based halftone visual watermarking (EDHVW) method, ... More
Slepton Oscillation at e-gamma CollidersAug 28 1998We study the possible signature for lepton-flavor violation processes in the scalar-lepton sector of the minimal supersymmetric model at future electron-photon colliders. We find that an $\egm$ collider can provide a good opportunity to probe the mass ... More
Joint Optimization of Scheduling and Power Control in Wireless Networks: Multi-Dimensional Modeling and DecompositionJan 23 2017Jun 07 2017The energy efficiency of future networks is becoming a significant and urgent issue, calling for greener network designs. At the same time, rapid development of wireless networks shows a trend of increasing complexity in network structure and resource ... More
Superfluid density and Berezinskii-Kosterlitz-Thouless transition of a spin-orbit coupled Fulde-Ferrell superfluidOct 03 2014We theoretically investigate the superfluid density and Berezinskii-Kosterlitz-Thouless (BKT) transition of a two-dimensional Rashba spin-orbit coupled atomic Fermi gas with both in-plane and out-of-plane Zeeman fields. It was recently predicted that, ... More
Spatial Interference: From Coherent To IncoherentAug 17 2008It is well known that direct observation of interference and diffraction pattern in the intensity distribution requires a spatially coherent source. Optical waves emitted from portions beyond the coherence area possess statistically independent phases, ... More
Superconductivity in a layered cobalt oxyhydrate Na$_{0.31}$CoO$_{2}\cdot$1.3H$_{2}$OMay 21 2003May 26 2003We report the electrical, magnetic and thermal measurements on a layered cobalt oxyhydrate Na$_{0.31}$CoO$_{2}\cdot$1.3H$_{2}$O. Bulk superconductivity at 4.3 K has been confirmed, however, the measured superconducting fraction is relatively low probably ... More
Entanglement-assisted quantum MDS codes from constacyclic codes with large minimum distanceMar 12 2018The entanglement-assisted (EA) formalism allows arbitrary classical linear codes to transform into entanglement-assisted quantum error correcting codes (EAQECCs) by using pre-shared entanglement between the sender and the receiver. In this work, we propose ... More
Determining system Hamiltonian from eigenstate measurements without correlation functionsMar 15 2019For a local Hamiltonian $H=\sum_i c_i A_i$, with $A_i$s being local operators, it is known that $H$ could be encoded in a single (non-degenerate) eigenstate $|\psi\rangle$ in certain cases. One case is that the system satisfies the Eigenstate Thermalization ... More
Gapless topological Fulde-Ferrell superfluidity in spin-orbit coupled Fermi gasesFeb 27 2014Jul 16 2014Topological superfluids usually refer to a superfluid state which is gapped in the bulk but metallic at the boundary. Here we report that a gapless, topologically non-trivial superfluid with inhomogeneous Fulde-Ferrell pairing order parameter can emerge ... More
DeepCenterline: a Multi-task Fully Convolutional Network for Centerline ExtractionMar 25 2019A novel centerline extraction framework is reported which combines an end-to-end trainable multi-task fully convolutional network (FCN) with a minimal path extractor. The FCN simultaneously computes centerline distance maps and detects branch endpoints. ... More
English Out-of-Vocabulary Lexical Evaluation TaskApr 11 2018May 03 2019Unlike previous unknown nouns tagging task, this is the first attempt to focus on out-of-vocabulary (OOV) lexical evaluation tasks that do not require any prior knowledge. The OOV words are words that only appear in test samples. The goal of tasks is ... More
An Ontology-Based Artificial Intelligence Model for Medicine Side-Effect Prediction: Taking Traditional Chinese Medicine as An ExampleSep 12 2018In this work, an ontology-based model for AI-assisted medicine side-effect (SE) prediction is developed, where three main components, including the drug model, the treatment model, and the AI-assisted prediction model, of proposed model are presented. ... More
Energy Efficient Massive MIMO through Distributed Precoder DesignDec 25 2018This paper presents an energy-efficient downlink precoding scheme with the objective of maximizing system energy efficiency in a multi-cell massive MIMO system. The proposed precoding design jointly considers the issues of power control, interference ... More
Molecular rotation movie filmed with high-harmonic generationFeb 15 2019Direct imaging of molecular dynamics is a long-standing goal in physics and chemistry. As an emerging tool, high-harmonic spectroscopy (HHS) enables accessing molecular dynamics on femtosecond to attosecond time scales. However, decoding information from ... More
Enhanced Interfacial Dzyaloshinskii-Moriya Interaction in annealed Pt/Co/MgO structuresFeb 08 2019The interfacial Dzyaloshinskii-Moriya interaction (iDMI) is attracting great interests for spintronics. An iDMI constant larger than 3 mJ/m^2 is expected to minimize the size of skyrmions and to optimize the DW dynamics. In this study, we experimentally ... More
Link Quality Aware Channel Allocation for Multichannel Body Sensor NetworksOct 10 2017Oct 27 2017Body Sensor Network (BSN) is a typical Internet-of-Things (IoT) application for personalized health care. It consists of economically powered, wireless and implanted medical monitoring sensor nodes, which are designed to continually collect the medical ... More
Blind Channel Separation in Massive MIMO System under Pilot Spoofing and Jamming AttackFeb 08 2019We consider a channel separation approach to counter the pilot attack in a massive MIMO system, where malicious users (MUs) perform pilot spoofing and jamming attack (PSJA) in uplink by sending symbols to the basestation (BS) during the channel estimation ... More
Neural Encoding and Decoding with Deep Learning for Dynamic Natural VisionAug 11 2016Nov 14 2017Convolutional neural network (CNN) driven by image recognition has been shown to be able to explain cortical responses to static pictures at ventral-stream areas. Here, we further showed that such CNN could reliably predict and decode functional magnetic ... More
Variance-based uncertainty relations for incompatible observablesAug 22 2016We formulate uncertainty relations for arbitrary finite number of incompatible observables. Based on the sum of variances of the observables, both Heisenberg-type and Schr\"{o}dinger-type uncertainty relations are provided. These new lower bounds are ... More
Impact parameter dependence of pion ratio in probing the nuclear symmetry energy using heavy-ion collisionsJan 17 2016The impact parameter dependence of \rpi ratio is examined in heavy-ion collisions at 400MeV/nucleon within a transport model. It is shown that the sensitivity of \rpi ratio on symmetry energy shows a transition from central to peripheral collisions, i.e., ... More
An ultra-sensitive balanced detector with low noise for continuous-variable quantum key distributionJun 09 2018A well-balanced detector with high sensitivity and low noise is presented in this paper. The two-stage amplification structure is used to increase electronic gain while keeping an effective bandwidth of about 70 MHz. In order to further reduce electronic ... More
Deep attention-based classification network for robust depth predictionJul 11 2018In this paper, we present our deep attention-based classification (DABC) network for robust single image depth prediction, in the context of the Robust Vision Challenge 2018 (ROB 2018). Unlike conventional depth prediction, our goal is to design a model ... More
Exponential decay of Rényi divergence under Fokker-Planck equationsMay 16 2018Nov 11 2018We prove the exponential convergence to the equilibrium, quantified by R\'enyi divergence, of the solution of the Fokker-Planck equation with drift given by the gradient of a strictly convex potential. This extends the classical exponential decay result ... More
Electron Doping Evolution of Magnetic Excitations and Spin-Orbit Excitons in (Sr$_{1-x}$La$_x$)$_3$Ir$_2$O$_7$Aug 22 2016We use resonant inelastic X-ray scattering at the Ir-$L_3$ edge to study the magnetic excitations and the spin-orbit excitons in the bilayer iridate (Sr$_{1-x}$La$_{x}$)$_3$Ir$_2$O$_7$ ($0 \leq x \leq 0.065$). With increasing doping $x$, the three-dimensional ... More
Spontaneous PT symmetry breaking in non-Hermitian coupled cavities arrayNov 14 2018We study the effects of the position of the passive and active cavities on the spontaneous parity-time (PT) symmetry breaking behavior in non-Hermitian coupled cavities array model. We analyze and discuss the energy eigenvalue spectrums and PT symmetry ... More
Directional Enhanced Probe for Side-Illumination Tip Enhanced SpectroscopyNov 12 2015We demonstrate a high-performance apertureless near-field probe made of a tapered metal tip with a set of periodic shallow grooves near the apex. The spontaneous emission from a single emitter near the tip is investigated systematically for the side-illumination ... More
Spontaneous $\mathcal{T}$-symmetry breaking and exceptional points in cavity quantum electrodynamics systemsJul 31 2018Spontaneous symmetry breaking has revolutionized the understanding in numerous fields of modern physics. Here, we theoretically demonstrate the spontaneous time-reversal symmetry breaking in a cavity quantum electrodynamics system in which an atomic ensemble ... More
Gradient flow structure and exponential decay of the sandwiched Rényi divergence for primitive Lindblad equations with GNS-detailed balanceOct 01 2018We study the entropy production of the sandwiched R\'enyi divergence under a primitive Lindblad equation with GNS-detailed balance. We prove that the Lindblad equation can be identified as the gradient flow of the sandwiched R\'enyi divergence for any ... More
What Is Armchair-Zigzag Grain Boundary Structure in Graphene?Aug 19 2013We have developed a new global optimization method for the determination of interface structure based on the differential evolution algorithm. Here, we applied this method to search for the ground state atomic structures of the grain boundary between ... More
Collaborative Alerts Ranking for Anomaly DetectionDec 22 2016Feb 13 2018Given a large number of low-level heterogeneous categorical alerts from an anomaly detection system, how to characterize complex relationships between different alerts, filter out false positives, and deliver trustworthy rankings and suggestions to end ... More
Dual-branch residual network for lung nodule segmentationMay 21 2019An accurate segmentation of lung nodules in computed tomography (CT) images is critical to lung cancer analysis and diagnosis. However, due to the variety of lung nodules and the similarity of visual characteristics between nodules and their surroundings, ... More
Astronomical Observing Conditions at Xinglong Observatory from 2007 to 2014Jan 29 2016Xinglong Observatory of the National Astronomical Observatories, Chinese Academy of Sciences (NAOC), is one of the major optical observatories in China, which hosts nine optical telescopes including the Large Sky Area Multi-Object Fiber Spectroscopic ... More
Rabi oscillation induced $π$-phase flip in an unbalanced Ramsey atom interferometerApr 06 2016Jul 04 2016We present an observation of zero to $\pi$ phase flips induced by Rabi oscillation in an unbalanced Ramsey atom interferometer. The phase shift and visibility are experimentally investigated by modulating either the polarization or duration of Raman lasers, ... More
Attention-driven Tree-structured Convolutional LSTM for High Dimensional Data UnderstandingJan 29 2019Modeling the sequential information of image sequences has been a vital step of various vision tasks and convolutional long short-term memory (ConvLSTM) has demonstrated its superb performance in such spatiotemporal problems. Nevertheless, the hierarchical ... More
Phase modulation parallel optical delay detector for microwave angle-of-arrival measurement with accuracy monitoredJan 03 2014A novel phase modulation parallel optical delay detector is proposed for microwave angle-of-arrival (AOA) measurement with accuracy monitored by using only one dual-electrode Mach-Zenhder modulator. A theoretical model is built up to analyze the proposed ... More
Two-Dimensional Node-Line Semimetals in a Honeycomb-Kagome LatticeMar 15 2016Recently, the concept of topological insulators has been generalized to topological semimetals, including three-dimensional (3D) Weyl semimetals, 3D Dirac semimetals, and 3D node-line semimetals. In particular, several compounds (e.g., certain three-dimensional ... More
Diagnosing the magnetic field-tuned symmetry nature of the topological electrons by conductance fluctuations in bulk-insulating BiSbTeSe2 devicesDec 10 2017We extract the quantum conductance fluctuations and study its magnetic field dependence in the gate-dependent transport of the topological electrons in bulk-insulating BiSbTeSe2 devices. While increasing the magnetic field from 0 to 12 Tesla, the fluctuation ... More
Doping Evolution of Magnetic Order and Magnetic Excitations in (Sr$_{1-x}$La$_x$)$_3$Ir$_2$O$_7$Aug 22 2016Oct 26 2016We use resonant elastic and inelastic X-ray scattering at the Ir-$L_3$ edge to study the doping-dependent magnetic order, magnetic excitations and spin-orbit excitons in the electron-doped bilayer iridate (Sr$_{1-x}$La$_{x}$)$_3$Ir$_2$O$_7$ ($0 \leq x ... More
Surrogate Supervision for Medical Image Analysis: Effective Deep Learning From Limited Quantities of Labeled DataJan 25 2019We investigate the effectiveness of a simple solution to the common problem of deep learning in medical image analysis with limited quantities of labeled training data. The underlying idea is to assign artificial labels to abundantly available unlabeled ... More
Transport and Capacitance properties of Charge Density Wave in few layer 2H-TaS2 DevicesJul 10 2014We carefully investigated the transport and capacitance properties of few layer charge density wave (CDW) 2H-TaS2 devices. The CDW transition temperature and the threshold voltage vary from device to device, which is attributed to the interlayer interaction ... More
Towards Photo-Realistic Visible Watermark Removal with Conditional Generative Adversarial NetworksMay 30 2019May 31 2019Visible watermark plays an important role in image copyright protection and the robustness of a visible watermark to an attack is shown to be essential. To evaluate and improve the effectiveness of watermark, watermark removal attracts increasing attention ... More
Multiparametric Amplification and Qubit Measurement with a Kerr-free Josephson Ring ModulatorMar 05 2019Josephson-junction based parametric amplifiers have become a ubiquitous component in superconducting quantum machines. Although parametric amplifiers regularly achieve near-quantum limited performance, they have many limitations, including low saturation ... More
On the integrated squared error of the linear wavelet density estimatorOct 29 2012Linear wavelet density estimators are wavelet projections of the empirical measure based on independent, identically distributed observations. We study here the law of the iterated logarithm (LIL) and a Berry-Esseen type theorem. These results are proved ... More
Mn-doping induced ferromagnetism and enhanced superconductivity in Bi_4-x Mn_x O_4 S_3 (0.075 < = x < = 0.15)Aug 15 2016We demonstrate that Mn-doping in the layered sulfides Bi_4O_4S_3 leads to stable Bi_4-x Mn_x O_4 S_3 compounds that exhibit both long-range ferromagnetism and enhanced superconductivity for 0.075 < = x < = 0.15, with a possible record superconducting ... More
Complete classification for simple root cyclic codes over local rings $\mathbb{Z}_{p^s}[v]/\langle v^2-pv\rangle$Oct 25 2017Oct 26 2017Let $p$ be a prime integer, $n,s\geq 2$ be integers satisfying ${\rm gcd}(p,n)=1$, and denote $R=\mathbb{Z}_{p^s}[v]/\langle v^2-pv\rangle$. Then $R$ is a local non-principal ideal ring of $p^{2s}$ elements. First, the structure of any cyclic code over ... More
Complete classification of $(δ+αu^2)$-constacyclic codes over $\mathbb{F}_{2^m}[u]/\langle u^4\rangle$ of oddly even lengthSep 20 2016Let $\mathbb{F}_{2^m}$ be a finite field of cardinality $2^m$, $R=\mathbb{F}_{2^m}[u]/\langle u^4\rangle)$ and $n$ is an odd positive integer. For any $\delta,\alpha\in \mathbb{F}_{2^m}^{\times}$, ideals of the ring $R[x]/\langle x^{2n}-(\delta+\alpha ... More
The Gray image of constacyclic codes over the finite chain ring $F_{p^m}[u]/\langle u^k\rangle$Oct 05 2016Mar 15 2017Let $\mathbb{F}_{p^m}$ be a finite field of cardinality $p^m$, where $p$ is a prime, and $k, N$ be any positive integers. We denote $R_k=F_{p^m}[u]/\langle u^k\rangle =F_{p^m}+uF_{p^m}+\ldots+u^{k-1}F_{p^m}$ ($u^k=0$) and $\lambda=a_0+a_1u+\ldots+a_{k-1}u^{k-1}$ ... More
On Shor's Factoring Algorithm with More Registers and the Problem to Certify Quantum ComputersSep 10 2014Shor's factoring algorithm uses two quantum registers. By introducing more registers we show that the measured numbers in these registers which are of the same pre-measurement state, should be equal if the original Shor's complexity argument is sound. ... More
Negacyclic codes over the local ring $\mathbb{Z}_4[v]/\langle v^2+2v\rangle$ of oddly even length and their Gray imagesFeb 28 2018Let $R=\mathbb{Z}_{4}[v]/\langle v^2+2v\rangle=\mathbb{Z}_{4}+v\mathbb{Z}_{4}$ ($v^2=2v$) and $n$ be an odd positive integer. Then $R$ is a local non-principal ideal ring of $16$ elements and there is a $\mathbb{Z}_{4}$-linear Gray map from $R$ onto $\mathbb{Z}_{4}^2$ ... More
Multiple values and uniqueness problem of meromorphic mappings sharing hypersurfacesJun 15 2013Feb 23 2017The purpose of this article is to deal with the multiple values and uniqueness problem of meromorphic mappings from $\mathbb{C}^{m}$ into the complex projective space $\mathbb{P}^{n}(\mathbb{C})$ sharing fixed and moving hypersurfaces. We obtain several ... More
ALMA Observation of NGC5135: The Circumnuclear CO(6-5) and Dust Continuum Emission at 45 Parsec Resolution[$\star$]Sep 17 2018We present high-resolution (0.17\arcsec $\times$ 0.14\arcsec) Atacama Large Millimeter/submillimeter Array (ALMA) observations of the CO\,(6-5) line, and 435\um\ dust continuum emission within a $\sim$9\arcsec $\times$ 9\arcsec\ area centered on the nucleus ... More
A new Majorana platform in an Fe-As bilayer superconductorJul 01 2019Recently, iron-chalcogenide superconductors have emerged as a new and promising platform for studying and manipulating Majorana zero mode (MZM). By combining topological band structure and superconductivity in a multiband material, they provide significant ... More
TeamPhone: Networking Smartphones for Disaster RecoveryJun 10 2016In this paper, we investigate how to network smartphones for providing communications in disaster recovery. By bridging the gaps among different kinds of wireless networks, we have designed and implemented a system called TeamPhone, which provides smartphones ... More
The $B -> X_s gamma gamma$ decay in the standard model and the general two-Higgs-doublet modelMar 14 2001Based on the low-energy effective Hamiltonian, we calculate the new physics corrections to the branching ratio and the differential distributions of the rare decay $B \to X_s \gamma \gamma$ induced by the new gluonic and electroweak charged-Higgs penguin ... More
Dark state cooling of a trapped ion using microwave couplingJul 09 2015We propose a new dark-state cooling method of trapped ion systems in the Lamb-Dicke limit. With application of microwave dressing the ion, we can obtain two electromagnetically induced transparency structures. The heating effects caused by the carrier ... More
ALMA Maps of Dust and Warm Dense Gas Emission in the Starburst Galaxy IC 5179$^\star$Jul 14 2017We present our high-resolution ($0^{\prime\prime}.15\times0^{\prime\prime}.13$, $\sim$34 pc) observations of the CO(6-5) line emission, which probes the warm and dense molecular gas, and the 434 $\mu$m dust continuum emission in the nuclear region of ... More
Positioning of Transparent Targets Using Defocusing Method in a Laser Proton AcceleratorApr 27 2018We report a positioning method for transparent targets with an accuracy of \SI{2}{\mu m} for a compact laser proton accelerator. The positioning system consists of two light-emitting diodes (LED), a long working distance objective and two charge coupled ... More
Photoelectron holographic interferometry to probe the longitudinal momentum offset at the tunnel exitApr 21 2019Laser-induced electron tunneling underlies numerous emerging spectroscopic techniques to probe attosecond electron dynamics in atoms and molecules. The improvement of those techniques requires an accurate knowledge of the exit momentum for the tunneling ... More
Charmonium states in QCD-inspired quark potential model using Gaussian expansion methodJun 14 2012Oct 15 2012We investigate the mass spectrum and electromagnetic processes of charmonium system with the nonperturbative treatment for the spin-dependent potentials, comparing the pure scalar and scalar-vector mixing linear confining potentials. It is revealed that ... More
Host galaxy properties of mergers of stellar binary black holes and their implications for advanced LIGO gravitational wave sourcesNov 25 2017Understanding the host galaxy properties of stellar binary black hole (SBBH) mergers is important for revealing the origin of the SBBH gravitational-wave sources detected by advanced LIGO and helpful for identifying their electromagnetic counterparts. ... More
OPINS: An Orthogonally Projected Implicit Null-space Method for Singular and Nonsingular Saddle-point SystemsNov 21 2015Saddle-point systems appear in many scientific and engineering applications. The systems can be sparse, symmetric or nonsymmetric, and possibly singular. In many of these applications, the number of constraints is relatively small compared to the number ... More
Strong and Tunable Spin-Orbit Coupling of One-Dimensional Holes in Ge/Si Core/Shell NanowiresAug 11 2010We investigate the low-temperature magneto-transport properties of individual Ge/Si core/shell nanowires. Negative magneto-conductance was observed, which is a signature of one-dimensional weak antilocalization of holes in the presence of strong spin-orbit ... More
Andreev reflection enhanced single hole tunneling in Ge/Si core/shell nanowire quantum dotMay 27 2010We experimentally study the electrical transport properties of Ge/Si core/shell nanowire device with two superconducting leads in the Coulomb blockade regime. Anomalous zero field magnetoconductance peaks are observed for the first time at the gate voltages ... More
Multifunctional photonic integrated circuit for diverse microwave signal generation, transmission and processingMar 26 2019Microwave photonics (MWP) studies the interaction between microwave and optical waves for the generation, transmission and processing of microwave signals (i.e., three key domains), taking advantages of broad bandwidth and low loss offered by modern photonics. ... More
Testing the Universality of Free Fall at ${10^{ - 10}}$ level by Comparing the Atoms in Different Hyperfine States with Bragg DiffractionMay 20 2018May 31 2018We have performed a precision atomic interferometry experiment on testing the universality of free fall (UFF) considering atoms' spin degree of freedom. Our experiment employs the Bragg atom interferometer with $^{87}$Rb atoms either in hyperfine state ... More
Limits on Lorentz violation in gravity from worldwide superconducting gravimetersJul 07 2017Oct 24 2017We investigated Lorentz violation through anisotropy of gravity using a worldwide array of 12 superconducting gravimeters. The Lorentz-violating signal is extracted from the difference between measured gravity and a tidal model. At the level of sensitivity ... More
Superconducting phase diagram and nontrivial band topology of structurally modulated Sn$_{1-x}$Sb$_{x}$Jun 30 2019We report the discovery of superconductivity in binary alloy Sn$_{1-x}$Sb$_{x}$ with $x$ in the range of 0.43 to 0.6, which possesses a modulated rhombohedral structure due to the incommensurate ordering of Sn and Sb layers along the $c$-axis. The specific ... More
Further results on the Hamilton-Waterloo problemMay 03 2016In this paper, we almost completely solve the existence of an almost resolvable cycle system with odd cycle length. We also use almost resolvable cycle systems as well as other combinatorial structures to give some new solutions to the Hamilton-Waterloo ... More