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Results for "Jianwei Huang"

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Analysis of variance, coefficient of determination and $F$-test for local polynomial regressionOct 27 2008This paper provides ANOVA inference for nonparametric local polynomial regression (LPR) in analogy with ANOVA tools for the classical linear regression model. A surprisingly simple and exact local ANOVA decomposition is established, and a local R-squared ... More
Time and Location Aware Mobile Data PricingNov 12 2015Mobile users' correlated mobility and data consumption patterns often lead to severe cellular network congestion in peak hours and hot spots. This paper presents an optimal design of time and location aware mobile data pricing, which incentivizes users ... More
Safe Carrier Sensing Range in CSMA Network under Physical Interference ModelJan 23 2009In this paper, we study the setting of carrier-sensing range in 802.11 networks under the (cumulative) physical interference model. Specifically, we identify a carrier-sensing range that will prevent collisions in 802.11 networks due to carrier-sensing ... More
Power-Delay Tradeoff with Predictive Scheduling in Integrated Cellular and Wi-Fi NetworksDec 20 2015Dec 29 2015The explosive growth of global mobile traffic has lead to a rapid growth in the energy consumption in communication networks. In this paper, we focus on the energy-aware design of the network selection, subchannel, and power allocation in cellular and ... More
A Game-Theoretic Analysis of User Behaviors in Crowdsourced Wireless Community NetworksMar 05 2015Feb 24 2016A crowdsourced wireless community network can effectively alleviate the limited coverage issue of Wi-Fi access points (APs), by encouraging individuals (users) to share their private residential Wi-Fi APs with each other. This paper presents the first ... More
Attack Prevention for Collaborative Spectrum Sensing in Cognitive Radio NetworksSep 05 2011Collaborative spectrum sensing can significantly improve the detection performance of secondary unlicensed users (SUs). However, the performance of collaborative sensing is vulnerable to sensing data falsification attacks, where malicious SUs (attackers) ... More
Spectrum Sharing as Network Congestion GamesDec 17 2009Dec 23 2009This paper has been withdrawn by the first author due to incomplete bibliography and incorporation of multiple formats in the same file.
Spectrum Sharing as Spatial Congestion GamesNov 24 2010In this paper, we present and analyze the properties of a new class of games - the spatial congestion game (SCG), which is a generalization of the classical congestion game (CG). In a classical congestion game, multiple users share the same set of resources ... More
Joint Scheduling and Power Allocations for Traffic Offloading via Dual-ConnectivitySep 30 2015With the rapid growth of mobile traffic demand, a promising approach to relieve cellular network congestion is to offload users' traffic to small-cell networks. In this paper, we investigate how the mobile users (MUs) can effectively offload traffic by ... More
Incentivizing Energy Trading for Interconnected MicrogridsSep 24 2016In this paper, we study the interactions among interconnected autonomous microgrids, and propose a joint energy trading and scheduling strategy. Each interconnected microgrid not only schedules its local power supply and demand, but also trades energy ... More
Cooperative Planning of Renewable Generations for Interconnected MicrogridsApr 07 2016We study the renewable energy generations in Hong Kong based on realistic meteorological data, and find that different renewable sources exhibit diverse time-varying and location-dependent profiles. To efficiently explore and utilize the diverse renewable ... More
Joint Investment and Operation of MicrogridNov 06 2015In this paper, we propose a theoretical framework for the joint optimization of investment and operation of a microgrid, taking the impact of energy storage, renewable energy integration, and demand response into consideration. We first study the renewable ... More
Polarization effect of zinc on the region 1-16 of amyloid-beta peptide: a molecular dynamics studyJan 08 2013Zinc is found saturated in the deposited Amyloid-beta (AB) peptide plaques in brains of patients subjected to Alzheimer disease (AD). Zinc binding to AB promotes aggregations, including the toxic soluble AB species. Up to now, only the region 1-16 of ... More
Price Differentiation for Communication NetworksNov 04 2010May 06 2013We study the optimal usage-based pricing problem in a resource-constrained network with one profit-maximizing service provider and multiple groups of surplus-maximizing users. With the assumption that the service provider knows the utility function of ... More
The boundness of weighted Coxeter groups of rank 3Jul 08 2016We prove that a weighted Coxeter group (W,S,L) is bounded if the rank of W is 3.
DAWN: Delay-Aware Wi-Fi Offloading and Network SelectionFeb 27 2015To accommodate the explosive growth in mobile data traffic, both mobile cellular operators and mobile users are increasingly interested in offloading the traffic from cellular networks to Wi-Fi networks. However, previously proposed offloading schemes ... More
Investment and Pricing with Spectrum Uncertainty: A Cognitive Operator's PerspectiveDec 16 2009Jun 28 2010This paper studies the optimal investment and pricing decisions of a cognitive mobile virtual network operator (C-MVNO) under spectrum supply uncertainty. Compared with a traditional MVNO who often leases spectrum via long-term contracts, a C-MVNO can ... More
Competition with Dynamic Spectrum LeasingMar 29 2010This paper presents a comprehensive analytical study of two competitive cognitive operators' spectrum leasing and pricing strategies, taking into account operators' heterogeneity in leasing costs and users' heterogeneity in transmission power and channel ... More
MAPEL: Achieving Global Optimality for a Non-convex Wireless Power Control ProblemMay 17 2008Jun 10 2008Achieving weighted throughput maximization (WTM) through power control has been a long standing open problem in interference-limited wireless networks. The complicated coupling between the mutual interferences of links gives rise to a non-convex optimization ... More
Optimal Pricing and Admission Control for Heterogeneous Secondary UsersApr 07 2016This paper studies how to maximize a spectrum database operator's expected revenue in sharing spectrum to secondary users, through joint pricing and admission control of spectrum resources. A unique feature of our model is the consideration of the stochastic ... More
Effective Carrier Sensing in CSMA Networks under Cumulative InterferenceDec 11 2009This paper proposes and investigates the concept of a safe carrier-sensing range that can guarantee interference safe (also termed hidden-node-free) transmissions in CSMA networks under the cumulative interference model. Compared with the safe carrier-sensing ... More
MINE GOLD to Deliver Green Cognitive CommunicationsSep 14 2015Geo-location database-assisted TV white space network reduces the need of energy-intensive processes (such as spectrum sensing), hence can achieve green cognitive communication effectively. The success of such a network relies on a proper business model ... More
Competition of Wireless Providers for Atomic UsersJul 07 2010We study a problem where wireless service providers compete for heterogenous wireless users. The users differ in their utility functions as well as in the perceived quality of service of individual providers. We model the interaction of an arbitrary number ... More
Delay Sensitive Communications over Cognitive Radio NetworksJan 15 2012Supporting the quality of service of unlicensed users in cognitive radio networks is very challenging, mainly due to dynamic resource availability because of the licensed users' activities. In this paper, we study the optimal admission control and channel ... More
Cooperative Wi-Fi Deployment: A One-to-Many Bargaining FrameworkAug 05 2016We study the cooperation of the mobile network operator (MNO) and the venue owners (VOs) on the public Wi-Fi deployment. We consider a one-to-many bargaining framework, where the MNO bargains with VOs sequentially to determine where to deploy Wi-Fi and ... More
On Competing Wireless Service ProvidersMar 11 2009We consider a situation where wireless service providers compete for heterogenous wireless users. The users differ in their willingness to pay as well as in their individual channel gains. We prove existence and uniqueness of the Nash equilibrium for ... More
Contract-Based Cooperative Spectrum SharingFeb 21 2011Providing proper economic incentives is essential for the success of dynamic spectrum sharing. Cooperative spectrum sharing is one effective way to achieve this goal. In cooperative spectrum sharing, secondary users (SUs) relay traffics for primary users ... More
Pricing for local and global WiFi marketsJul 16 2014This paper analyzes two pricing schemes commonly used in WiFi markets: the flat-rate and the usage-based pricing. The flat-rate pricing encourages the maximum usage, while the usage-based pricing can flexibly attract more users especially those with low ... More
Intrinsically discrete channel-gating dynamics at small membrane patch area for the Hodgkin-Huxley neuronsMar 04 2013Mar 17 2013This paper has been withdrawn by the author due to some incorrect presentation in the results and discussion part.
An Integrated Spectrum and Information Market for Green Cognitive CommunicationsMar 16 2016A database-assisted TV white space network can achieve the goal of green cognitive communication by effectively reducing the energy consumption in cognitive communications. The success of such a novel network relies on a proper business model that provides ... More
Providing Long-Term Participation Incentive in Participatory SensingJan 11 2015Feb 24 2016Providing an adequate long-term participation incentive is important for a participatory sensing system to maintain enough number of active users (sensors), so as to collect a sufficient number of data samples and support a desired level of service quality. ... More
Competitive Charging Station Pricing for Plug-in Electric VehiclesNov 24 2015Nov 28 2015This paper considers the problem of charging station pricing and plug-in electric vehicles (PEVs) station selection. When a PEV needs to be charged, it selects a charging station by considering the charging prices, waiting times, and travel distances. ... More
Two-sided Matching Based Cooperative Spectrum SharingApr 13 2016Dynamic spectrum access (DSA) can effectively improve the spectrum efficiency and alleviate the spectrum scarcity, by allowing unlicensed secondary users (SUs) to access the licensed spectrum of primary users (PUs) opportunistically. Cooperative spectrum ... More
Spectrum Investment under Uncertainty: A Behavioral Economics PerspectiveAug 29 2016In this paper, we study a virtual wireless operator's spectrum investment problem under spectrum supply uncertainty. To obtain enough spectrum resources to meet its customer demands, the virtual operator can either sense for the temporarily unused spectrum ... More
HySIM: A Hybrid Spectrum and Information Market for TV White Space NetworksJan 11 2015Feb 24 2016We propose a hybrid spectrum and information market for a database-assisted TV white space network, where the geo-location database serves as both a spectrum market platform and an information market platform. We study the inter- actions among the database ... More
Spectrum Reservation Contract Design in TV White Space NetworksNov 02 2015In this paper, we study a broker-based TV white space market, where unlicensed white space devices (WSDs) purchase white space spectrum from TV licensees via a third-party geo-location database (DB), which serves as a spectrum broker, reserving spectrum ... More
An Auction Approach to Distributed Power Allocation for Multiuser Cooperative NetworksOct 17 2012This paper studies a wireless network where multiple users cooperate with each other to improve the overall network performance. Our goal is to design an optimal distributed power allocation algorithm that enables user cooperation, in particular, to guide ... More
Capacity Allocation and Pricing Strategies for Wireless Femtocell ServicesMay 06 2012Indoor cell phone users often suffer from poor connectivity. One promising solution, femtocell technology, has been rapidly developed and deployed over the past few years. One of the biggest challenges for femtocell deployment is lack of a clear business ... More
Resummed QCD Power Corrections to Nuclear ShadowingSep 09 2003Jan 10 2005We calculate and resum a perturbative expansion of nuclear enhanced power corrections to the structure functions measured in deeply inelastic scattering of leptons on a nuclear target. Our results for the Bjorken $x$-, $Q^2$- and $A$-dependence of nuclear ... More
Strong nuclear enhancement in intermediate mass Drell-Yan productionSep 24 2001We calculate nuclear effect in Drell-Yan massive lepton-pair production in terms of parton multiple scattering in Quantum Chromodynamics (QCD). We present the nuclear modification to inclusive Drell-Yan cross section $d\sigma/dQ^2$ in terms of multiparton ... More
Role of the nonperturbative input in QCD resummed Drell-Yan $Q_T$-distributionsDec 27 2000Feb 20 2001We analyze the role of the nonperturbative input in the Collins, Soper, and Sterman (CSS)'s $b$-space QCD resummation formalism for Drell-Yan transverse momentum ($Q_T$) distributions, and investigate the predictive power of the CSS formalism. We find ... More
Transverse momentum diffusion and broadening of the back-to-back di-hadron correlation functionJun 12 2003Aug 15 2003We extend the Gyulassy-Levai-Vitev reaction operator approach to multiple elastic scattering of fast partons traversing dense nuclear matter to take into account the leading power corrections due to the medium recoil and to derive the change in the partons' ... More
QCD and Rescattering in Nuclear TargetsOct 31 2001We review the extension of the factorization formalism of perturbative QCD to soft rescattering associated with hard processes in nuclei.
Virtual photon fragmentation functionsDec 31 2000Feb 11 2001We introduce operator definitions for virtual photon fragmentation functions, which are needed for reliable calculations of Drell-Yan transverse momentum ($Q_T$) distributions when $Q_T$ is much larger than the invariant mass $Q$. We derive the evolution ... More
Single Transverse-Spin Asymmetries in Hadronic Pion ProductionJun 12 1998We analyze single transverse-spin asymmetries for hadronic pion production at large transverse momenta using QCD factorization. In the large $x_F$ region, leading contributions to the asymmetries are naturally produced by twist-3 parton correlation functions ... More
Nuclear shadowing in neutrino-nucleus deeply inelastic scatteringJan 10 2004In the framework of the collinear factorized pQCD approach we calculate the small-$x_B$ process-dependent nuclear modification to the structure functions measured in neutrino-nucleus deeply inelastic scattering. We include both heavy quark mass corrections ... More
Role of nonperturbative input in QCD resummed heavy boson $Q_T$ distributionMay 12 2002We show that role of nonperturbative input in the $b$-space QCD resummation formalism for heavy boson transverse momentum ($Q_T$) distribution strongly depends on collision energy $\sqrt{S}$. At collider energies, the larger $\sqrt{S}$ is, the weaker ... More
Auction-Based Coopetition between LTE Unlicensed and Wi-FiSep 07 2016Motivated by the recent efforts in extending LTE to the unlicensed spectrum, we propose a novel spectrum sharing framework for the coopetition (i.e., cooperation and competition) between LTE and Wi-Fi in the unlicensed band. Basically, the LTE network ... More
Combining Spot and Futures Markets: A Hybrid Market Approach to Dynamic Spectrum AccessMay 28 2014Jul 08 2016Dynamic spectrum access is a new paradigm of secondary spectrum utilization and sharing. It allows unlicensed secondary users (SUs) to exploit opportunistically the under-utilized licensed spectrum. Market mechanism is a widely-used promising means to ... More
Differential Cross Section for Higgs Boson Production Including All-Orders Soft Gluon ResummationOct 08 2002Mar 06 2003The transverse momentum $Q_T$ distribution is computed for inclusive Higgs boson production at the energy of the CERN Large Hadron Collider. We focus on the dominant gluon-gluon subprocess in perturbative quantum chromodynamics and incorporate contributions ... More
Dynamic Profit Maximization of Cognitive Mobile Virtual Network OperatorDec 17 2012We study the profit maximization problem of a cognitive virtual network operator in a dynamic network environment. We consider a downlink OFDM communication system with various network dynamics, including dynamic user demands, uncertain sensing spectrum ... More
Auction-based Resource Allocation for Multi-relay Asynchronous Cooperative NetworksJan 20 2008Resource allocation is considered for cooperative transmissions in multiple-relay wireless networks. Two auction mechanisms, SNR auctions and power auctions, are proposed to distributively coordinate the allocation of power among multiple relays. In the ... More
Incentive Design and Market Evolution of Mobile User-Provided NetworksFeb 23 2015Apr 19 2015An operator-assisted user-provided network (UPN) has the potential to achieve a low cost ubiquitous Internet connectivity, without significantly increasing the network infrastructure investment. In this paper, we consider such a network where the network ... More
Distributed and Optimal Reduced Primal-Dual Algorithm for Uplink OFDM Resource AllocationDec 22 2010Orthogonal Frequency Division Multiplexing (OFDM) is the key component of many emerging broadband wireless access standards. The resource allocation in OFDM uplink, however, is challenging due to heterogeneity of users' Quality of Service requirements, ... More
Auction-Based Coopetition between LTE Unlicensed and Wi-FiSep 07 2016Nov 08 2016Motivated by the recent efforts in extending LTE to the unlicensed spectrum, we propose a novel spectrum sharing framework for the coopetition (i.e., cooperation and competition) between LTE and Wi-Fi in the unlicensed band. Basically, the LTE network ... More
Auction-Based Distributed Resource Allocation for Cooperation Transmission in Wireless NetworksAug 04 2007Cooperative transmission can greatly improve communication system performance by taking advantage of the broadcast nature of wireless channels. Most previous work on resource allocation for cooperation transmission is based on centralized control. In ... More
Distributed Time-Sensitive Task Selection in Mobile CrowdsensingMar 20 2015With the rich set of embedded sensors installed in smartphones and the large number of mobile users, we witness the emergence of many innovative commercial mobile crowdsensing applications that combine the power of mobile technology with crowdsourcing ... More
Economic Analysis of Crowdsourced Wireless Community NetworksAug 31 2016Crowdsourced wireless community networks can effectively alleviate the limited coverage issue of Wi-Fi access points (APs), by encouraging individuals (users) to share their private residential Wi-Fi APs with others. In this paper, we provide a comprehensive ... More
Summary of Spin Physics Parallel SessionsAug 22 2003We summarize the activities in the spin physics parallel sessions of the $8^{\rm th}$ conference on intersections between particle and nuclear physics.
Public Wi-Fi Monetization via AdvertisingSep 07 2016There has been a proliferation of public Wi-Fi hotspots that serve a significant amount of global mobile traffic today. In this paper, we propose a general Wi-Fi monetization model for public Wi-Fi hotspots deployed by venue owners (VOs), who generate ... More
Three-dimensional coherent X-ray diffraction imaging of a whole, frozen-hydrated cellMay 10 2014A structural understanding of whole cells in three dimensions at high spatial resolution remains a significant challenge and, in the case of X-rays, has been limited by radiation damage. By alleviating this limitation, cryogenic coherent diffraction imaging ... More
Bargaining-based Mobile Data OffloadingMay 22 2014May 26 2014The unprecedented growth of mobile data traffic challenges the performance and economic viability of today's cellular networks, and calls for novel network architectures and communication solutions. Data offloading through third-party WiFi or femtocell ... More
Proactive Demand Response for Data Centers: A Win-Win SolutionNov 02 2015In order to reduce the energy cost of data centers, recent studies suggest distributing computation workload among multiple geographically dispersed data centers, by exploiting the electricity price difference. However, the impact of data center load ... More
Parametric Prediction from Parametric AgentsFeb 24 2016We consider a problem of prediction based on opinions elicited from heterogeneous rational agents with private information. Making an accurate prediction with a minimal cost requires a joint design of the incentive mechanism and the prediction algorithm. ... More
A simple method for characterization of the magnetic field in an ion trap using Be+ ionsOct 06 2014We demonstrate a simple method for the determination of the magnetic field in an ion trap using laser-cooled Be+ ions. The method is not based on magnetic resonance and thus does not require delivering radiofrequency (RF) radiation to the trap. Instead, ... More
Texture Object Segmentation Based on Affine Invariant Texture DetectionDec 23 2017To solve the issue of segmenting rich texture images, a novel detection methods based on the affine invariable principle is proposed. Considering the similarity between the texture areas, we first take the affine transform to get numerous shapes, and ... More
The Contribution of Host Galaxies to the Infrared Energy Output of $z\gtrsim5.0$ QUASARSNov 18 2015The infrared spectral energy distributions (SEDs) of $z\gtrsim 5$ quasars can be reproduced by combining a low-metallicity galaxy template with a standard AGN template. The host galaxy is represented by Haro 11, a compact, moderately low metallicity, ... More
Nuclear enhanced power corrections to DIS structure functionsOct 03 2001We calculate nuclear enhanced power corrections to structure functions measured in deeply inelastic lepton-nucleus scattering in Quantum Chromodynamics (QCD). We find that the nuclear medium enhanced power corrections at order of $O(\alpha_s/Q^2)$ enhance ... More
Drell-Yan Massive Lepton-Pair's Angular Distributions at Large $Q_T$Feb 15 2001By measuring Drell-Yan massive lepton-pair's angular distributions, we can identify the polarization of the virtual photon of invariant mass $Q$ which decays immediately into the lepton-pair. In terms of a modified QCD factorization formula for Drell-Yan ... More
Isolated Prompt Photon ProductionAug 19 1997We show that the conventionally defined partonic cross section for the production of isolated prompt photons is not an infrared safe quantity. We work out the case of $e^+e^- \to \gamma + X$ in detail, and we discuss implications for hadron reactions ... More
Isolated Prompt Photon Production in Hadronic Final States of $e^+e^-$ AnnihilationMay 15 1996We provide complete analytic expressions for the isolated prompt photon production cross section in $e^+e^-$ annihilation reactions through one-loop order in quantum chromodynamics (QCD) perturbation theory. Functional dependences on the isolation cone ... More
Effects of QCD Resummation on Distributions of Leptons from the Decay of Electroweak Vector BosonsMay 01 1995May 02 1995We study the distributions of leptons from the decay of electroweak vector bosons produced in hadron collisions. The effects of the initial state multiple soft-gluon emission, using the Collins--Soper resummation formalism, are included. The resummed ... More
Full transverse-momentum spectra of low-mass Drell-Yan pairs at LHC energiesMar 04 2003The transverse momentum distribution of low-mass Drell-Yan pairs is calculated in QCD perturbation theory with all-order resummation. We argue that at LHC energies the results should be reliable for the entire transverse momentum range. We demonstrate ... More
Probing Intrinsic Charm with Semileptonic B DecaysJan 17 2002Jun 04 2002We discuss semileptonic B decays of the form B -> J/Psi e nu X as possible probes of intrinsic charm. We calculate the leading order perturbative contribution to the process B- -> J/Psi e- nu_e X and find it to be unobservably small, with a branching ... More
J/$ψ$ production and suppression in nuclear collisionsJun 18 2001In terms of a new QCD factorization formula for J/$\psi$ production, we calculate the J/$\psi$ suppression in nuclear collisions by including the multiple scattering between the pre-J/$\psi$ partonic states and the nuclear medium. We find agreement with ... More
Nuclear dependence coefficient $α(A,q_T)$ for the Drell-Yan and J/$ψ$ productionDec 15 1999Apr 11 2000Define the nuclear dependence coefficient $\alpha(A,q_T)$ in terms of ratio of transverse momentum spectrum in hadron-nucleus and in hadron-nucleon collisions: $\frac{d\sigma^{hA}}{dq_T^2}/ \frac{d\sigma^{hN}}{dq_T^2}\equiv A^{\alpha(A,q_T)}$. We argue ... More
J/ψSuppression in Nucleus-Nucleus CollisionsSep 18 1998We propose a model for the production and suppression of J/\psi mesons in high-energy hadronic collisions. We factorized the process into a production of the $c\bar{c}$ pairs of relative momentum $k=k_c-k_{\bar{c}}$ convoluted with a transition probability ... More
Isolated Prompt Photon Cross SectionsOct 26 1996We show that the conventionally defined partonic cross section for the production of isolated prompt photons is not an infrared safe quantity. We work out the case of $e^+e^-\to\gamma + X$, and discuss implications for hadron reactions.
Universality in nuclear dependence coefficient $α(q_T)$Nov 24 1999Feb 17 2000We derive the nuclear dependence coefficient $\alpha(q_T)$ for Drell-Yan and J/$\psi$ production. We show that at small $q_T$, the $\alpha(q_T)$ is given by an universal functional form: $\alpha(q_T)=a+b q_T^2$, and the parameters $a$ and $b$ are completely ... More
Inclusive Prompt Photon Production in Hadronic Final States of $e^+e^-$ AnnihilationJul 26 1995Jul 29 1995We provide complete analytic expressions for the inclusive prompt photon production cross section in hadronic final states of $e^+e^-$ annihilation reactions through one-loop order in quantum chromodynamics perturbation theory. Computed explicitly are ... More
Motivating Smartphone Collaboration in Data Acquisition and Distributed ComputingJan 26 2014This paper analyzes and compares different incentive mechanisms for a master to motivate the collaboration of smartphone users on both data acquisition and distributed computing applications. To collect massive sensitive data from users, we propose a ... More
Inter-Session Network Coding with Strategic Users: A Game-Theoretic Analysis of Network CodingApr 19 2009A common assumption in the existing network coding literature is that the users are cooperative and non-selfish. However, this assumption can be violated in practice. In this paper, we analyze inter-session network coding in a wired network using game ... More
On the General Kerr/CFT Correspondence in Arbitrary DimensionsFeb 19 2012We study conformal symmetries on the horizon of a general stationary and axisymmetric black hole. We find that there exist physically reasonable boundary conditions that uniquely determine a set of symmetry generators, which form one copy of the Virasoro ... More
The Geometry and Topology on Grassmann ManifoldsAug 03 2006This paper shows that the Grassmann Manifolds $G_{\bf F}(n,N)$ can all be imbedded in an Euclidean space $M_{\bf F}(N)$ naturally and the imbedding can be realized by the eigenfunctions of Laplacian $\triangle$ on $G_{\bf F}(n,N)$. They are all minimal ... More
Probing Multiparton Correlations at CEBAFAug 08 1998In this talk, I explore the possibilities of probing the multiparton correlation functions at CEBAF at its current energy and the energies with its future upgrades.
Structure functions and parton distributionsNov 27 2002In this talk, I review the status of theoretical understanding of nuclear structure functions and parton distributions and discuss the constraints on nuclear parton distributions from existing data and the global QCD analysis.
Running Neutrino Masses, Leptonic Mixing Angles and CP-Violating Phases: From $M_{\rm Z}$ to $Λ_{\rm GUT}$Feb 02 2005Mar 25 2005We derive renormalization group equations for neutrino masses, leptonic mixing angles and CP-violating phases running at energies above the seesaw threshold, both in the Standard Model and in the Minimal Supersymmetric Standard Model extended with three ... More
What bipartite states are lazyFeb 03 2014Mar 26 2014A bipartite state is called lazy if the entropy rate of one subsystem is vanishing for any coupling to the other subsystem. In this paper, we provide a necessary and sufficient condition for a finite-dimensional bipartite state to be lazy, and prove that ... More
Lazy states, discordant states and entangled states for 2-qubit systemsJan 17 2014We investigate the lazy states, entangled states and discordant states for 2-qubit systems. We show that many lazy states are discordant, many lazy states are entangled, and many mixed entangled states are not lazy. With these investigations, we provide ... More
Quantifying coherence of Gaussian statesOct 10 2015Coherence arises from the superposition principle and plays a key role in quantum mechanics. Recently, Baumgratz et al. [T. Baumgratz, M. Cramer, and M. B. Plenio, Phys. Rev. Lett. 113, 140401 (2014)] established a rigorous framework for quantifying the ... More
The boundness of weighted Coxeter groups of rank 3Jul 08 2016Oct 12 2016We prove that a weighted Coxeter group (W,S,L) is bounded if the rank of W is 3.
Towards A Possible Fluid Flow Underlying the Kerr SpacetimeApr 19 2011May 07 2011Based on the idea of emergent spacetime, we consider the possibility that the material underlying our spacetime is modelled by a fluid. We are particularly interested in possible connections between the geometrical properties of the emergent spacetime ... More
Creating quantum discord through local generalized amplitude dampingJul 28 2011We show that two qubits initially in completely classical state can create quantum discord through a local generalized amplitude damping channel, but high temperature will impede the creating of quantum discord.
Global Quantum discord of multi-qubit statesApr 26 2012Global quantum discord (GQD), proposed by Rulli and Sarandy [Phys. Rev. A \textbf{84}, 042109 (2011)], is a generalization of quantum discord to multipartite states. In this paper, we provide an equivalent expression for GQD, and obtain the analytical ... More
The Complex Structures on $S^{2n}$Aug 15 2006Jun 28 2008In this paper, we show that the twistor space ${\cal J}(R^{2n+2})$ on Euclidean space $R^{2n+2}$ is a Kaehler manifold and the orthogonal twistor space $\widetilde{\cal J}(S^{2n})$ of the sphere $S^{2n}$ is a Kaehler submanifold of ${\cal J}(R^{2n+2})$. ... More
Response to "Feasibility of 3D reconstruction from a single 2D diffraction measurement"Sep 18 2009We present our response to Pierre Thibault's article, titled "Feasibility of 3D reconstruction from a single 2D diffraction measurement" [1], in which he commented upon our recent ankylography paper [2]. While we appreciate Thibault's efforts in promoting ... More
QCD Factorization and Re-scattering in Proton-Nucleus CollisionsMay 15 2003May 15 2003The extension of the factorization theorems of perturbative QCD to power corrections associated with re-scattering in nuclear collisions is reviewed. The importance of hadron-nucleus collisions is discussed.
Almost Complex Structure on $S^{2n}$Apr 04 2011We show that there is no complex structure in a neighborhood of the space of orthogonal almost complex structures on the sphere $S^{2n}, \ n>1$. The method is to study the first Chern class of vetcor bundle $T^{(1,0)}S^{2n}$.
Conformal Symmetries of the Einstein-Hilbert Action on Horizons of Stationary and Axisymmetric Black HolesAug 18 2011Feb 19 2012We suggest a way to study possible conformal symmetries on black hole horizons. We do this by carrying out a Kaluza-Klein like reduction of the Einstein-Hilbert action along the ignorable coordinates of stationary and axisymmetric black holes. Rigid diffeomorphism ... More
Spinor Fields and Symmetries of the SpacetimeMay 28 2011In the background of a stationary black hole, the "conserved current" of a particular spinor field always approaches the null Killing vector on the horizon. What's more, when the black hole is asymptotically flat and when the coordinate system is asymptotically ... More