Showing 2003Show all

90 papers · 1 filter

cond-mat.mtrl-sci2003★ 22 cited

Effects of Finite Deformed Length in Carbon Nanotubes

Jun-Qiang Lu, Jian Wu, Wenhui Duan +1

The effect of finite deformed length is demonstrated by squashing an armchair (10,10) single-walled carbon nanotube with two finite tips. Only when the deformed length is long enou…

math.AP2003

Asymptotic behavior of positive solutions of some quasilinear elliptic problems

Zhongmin Guo, Li Ma

We discuss the asymptotic behavior of positive solutions of the quasilinear elliptic problem , as and as …

hep-ex2003★ 6 cited

Search for K_S K_S in J/psi and psi(2S) decays

J. Z. Bai, BES Collaboration

The CP violating processes J/psi-->K_S K_S and psi(2S)-->K_S K_S are searched for using samples of 58 million J/psi and 14 million psi(2S) events collected with the Beijing Spectro…

cond-mat.stat-mech2003★ 7 cited

Modeling SARS Spreading on Complex Networks

Huijie Yang, Yun Zhou, Fangcui Zhao +1

The spreading of SARS will destruct the initial network structure to a new phase, and in turn the spreading process will be weakened effectively and finally halted by this evolutio…

math.DG2003

A Remark on Soliton Equation of Mean Curvature Flow

L. Ma, Y. Yang

In this short note, we consider self-similar immersions of the Graphic Mean Curvature Flow of higher co-dimension. We show that the following…

astro-ph2003★ 16 cited

Stationary perturbation configurations in a composite system of stellar and coplanarly magnetized gaseous singular isothermal discs

Yu-Qing Lou, Yue Zou

We construct aligned and unaligned stationary perturbation configurations in a composite system of stellar and coplanarly magnetized gaseous singular isothermal discs (SIDs) couple…

quant-ph2003★ 12 cited

Relation Between Catalyst-assisted Entanglement Transformation and Multiple-copy Transformation

Yuan Feng, Runyao Duan, Mingsheng Ying

We show that in some cases, catalyst-assisted entanglement transformation cannot be implemented by multiple-copy transformation for pure states. This fact, together with the result…

quant-ph2003★ 12 cited

Trade-off between multiple-copy transformation and entanglement catalysis

Runyao Duan, Yuan Feng, Xin Li +1

We demonstrate that multiple copies of a bipartite entangled pure state may serve as a catalyst for certain entanglement transformations while a single copy cannot. Such a state is…

hep-ph2003★ 2 cited

Can a Nonsymmetric Metric mimic NCQFT in ?

Nick Kersting, Yong-Liang Ma

In the nonsymmetric gravitational theory (NGT) the space-time metric departs from the flat-space Minkowski form such that it is no longer symmetric, $g_{μν…

cond-mat.soft2003★ 9 cited

Elasticity of polymer vesicles by osmotic pressure: an intermediate theory between fluid membranes and solid shells

Z. C. Tu, L. Q. Ge, J. B. Li +1

The entropy of a polymer confined in a curved surface and the elastic free energy of a membrane consisting of polymers are obtained by scaling analysis. It is found that the elasti…

nlin.AO2003

A Mean-Field Theory of Cellular Automata Model for Distributed Packet Networks

Maoke Chen, Tao He, Xing Li

A Mean-Field theory is presented and applied to a Cellular Automata model of distributed packet-switched networks. It is proved that, under a certain set of assumptions, the critic…

cond-mat.mes-hall2003★ 3 cited

Tunable terahertz emission from difference-frequency in biased superlattices

Ren-Bao Liu, Bang-Fen Zhu

The terahertz emission from difference-frequency in biased superlattices is calculated with the excitonic effect included. Owing to the doubly resonant condition and the excitonic…

hep-th2003★ 69 cited

On Beltrami Model of de Sitter Spacetime

Han-Ying Guo, Chao-Guang Huang, Zhan Xu +1

Based on some important properties of space, we present a Beltrami model that may shed light on the observable puzzle of space and the paradox between the sp…

cond-mat.stat-mech2003★ 30 cited

Collective oscillations of a confined Bose gas at finite temperature in the random-phase approximation

Xia-Ji Liu, Hui Hu, A. Minguzzi +1

We present a theory for the linear dynamics of a weakly interacting Bose gas confined inside a harmonic trap at finite temperature. The theory treats the motions of the condensate…

astro-ph2003★ 50 cited

Envelope Expansion with Core Collapse. I. Spherical Isothermal Similarity Solutions

Yu-Qing Lou, Yue Shen

We investigate self-similar dynamical processes in an isothermal self-gravitational fluid with spherical symmetry. In reference to earlier complementary solution results of Larson,…

quant-ph2003★ 1 cited

The Existence of Quantum Entanglement Catalysts

Xiaoming Sun, Runyao Duan, Mingsheng Ying

Without additional resources, it is often impossible to transform one entangled quantum state into another with local quantum operations and classical communication. Jonathan and P…

cond-mat.str-el2003★ 72 cited

The Fano resonance for Anderson impurity systems

H. G. Luo, T. Xiang, X. Q. Wang +2

We present a general theory for the Fano resonance in Anderson impurity systems. It is shown that the broadening of the impurity level leads to an additional and important contribu…

astro-ph2003★ 30 cited

Gamma-Ray Bursts are Produced Predominately in the Early Universe

J. R. Lin, S. N. Zhang, T. P. Li

It is known that some observed gamma-ray bursts (GRBs) are produced at cosmological distances and that the GRB production rate may follow the star formation rate. We model the BATS…

hep-ph2003★ 12 cited

Extracting Event Dynamics from Event-by-Event Analysis

Jinghua Fu, Lianshou Liu

The problem of eliminating the statistical fluctuations and extracting the event dynamics from event-by-event analysis is discussed. New moments (for continuous distribution)…

math.AG2003★ 6 cited

Hodge Integrals and Integrable Hierarchies

Jian Zhou

We show that the generating series of some Hodge integrals involving one or two partitions are tau-functions of the KP hierarchy or the 2-Toda hierarchy respectively. We also formu…

hep-ph2003★ 8 cited

1/m_Q order contributions to B \to πl νdecay in HQEFT

W. Y. Wang, Y. L. Wu, M. Zhong

Contributions to B\to πl νdecay from 1/m_Q order corrections are analyzed in the heavy quark effective field theory (HQEFT) of QCD. Transition wave functions of 1/m_Q order are cal…

cond-mat.stat-mech2003★ 23 cited

Inhibiting Three-Body Recombination in Atomic Bose-Einstein Condensates

Chris P. Search, Weiping Zhang, Pierre Meystre

We discuss the possibility of inhibiting three-body recombination in atomic Bose-Einstein condensates via the application of resonant laser pulses. These pulses result in the…

hep-ex2003★ 32 cited

First observation of psi(2S)-->K_S K_L

J. Z. Bai

The decay psi(2S)-->K_S K_L is observed for the first time using psi(2S) data collected with the Beijing Spectrometer (BESII) at the Beijing Electron Positron Collider (BEPC); the…

hep-ex2003★ 27 cited

Improved measurement of the branching ratio of J/psi-->K_S K_L

J. Z. Bai

The branching ratio of J/psi-->K_S K_L is measured with improved precision to be B(J/psi-->K_S K_L) = (1.82\pm 0.04\pm 0.13)\times 10^{-4}. using J/psi data collected with the Beij…