Institute of Theoretical Physics

output

19922026

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 1997Show all

49 papers · 1 filter

solv-int1997★ 4 cited

Boundary K-matrices and the Lax pair for 1D open XYZ spin-chain

Guo-xing Ju, Shi-kun Wang, Ke Wu +1

We analysis the symmetries of the reflection equation for open $X Y Z$ model and find their solutions $K^{\pm}$ case by case. In the general open boundary conditions, the Lax pair fo…

hep-ph1997★ 12 cited

Implications for $B \to η K$ and $B \to Gl u e ba l l + K$ Modes from Observed Large $B \to η^{'} K + X$

Xiao-Gang He, Wei-Shu Hou, C. -S. Huang

The unexpectedly large branching ratios for $B \to η^{'} K (η^{'} X_{s})$ decays could be of gluonic origin. We study the implications for $B \to η K (η X_{s})$ and $P K (P X_{s})$ , where $P$ is th…

cond-mat1997

Phase Structures of Magnetic Impurity Models with Two-Body Hybridization

Yue Yu, Wan-Peng Tan

The most general model with a magnetic impurity coupled to hybridizing and screening channels of a conduction band is considered. The partition function of the system is asymptotic…

astro-ph1997

On the Consistency between the Outer Rotation Curve of the Galaxy and the Microlensing Rate towards the Large Magellanic Cloud

Zong-Hong Zhu, Xiang-Ping Wu

Recent determination of the outer rotation curve of the Galaxy suggests that the total Galactic mass is likely to concentrate into a region of radius $\sim 2 R_{0}$ . If this finding is…

hep-ph1997★ 31 cited

Large corrections to asymptotic $F_{η_{c} γ}$ and $F_{η_{b} γ}$ in the light-cone perturbative QCD

Fu-Guang Cao, Tao Huang

The large- $Q^{2}$ behavior of $η_{c}$ - $γ$ and $η_{b}$ - $γ$ transition form factors, $F_{η_{c} γ} (Q^{2})$ and $F_{η_{b} γ} (Q^{2})$ are analyzed in the framework of light-cone perturbative QCD with t…

solv-int1997

On the Integrability of the One-Dimensional Open XYZ Spin Chain

Guo-xing Ju, Chi Xiong

The Lax pair for the one-dimensional open XYZ spin chain is constructed, this shows that the system is completely integrable .

hep-ph1997★ 1 cited

SUSY QCD corrections to W $γ$ production in polarized hadronic collisions

Han Meng, Ma Wen-Gan, Han Liang +1

We present the calculation of the supersymmetric QCD correction to $W γ$ production process in polarized proton-antiproton collisions at the TeV energy region. We find that the cor…

chao-dyn1997★ 14 cited

Symbolic Dynamics Analysis of the Lorenz Equations

Bai-lin Hao, Jun-xian Liu, Wei-mou Zheng

Recent progress of symbolic dynamics of one- and especially two-dimensional maps has enabled us to construct symbolic dynamics for systems of ordinary differential equations (ODEs)…

q-alg1997★ 5 cited

The Algebraic Structure of the $g l (n ∣ m)$ Color Calogero-Sutherland Models

Guo-xing Ju, Shi-kun Wang, Ke Wu

We extend the study on the algebraic structure of the $s u (n)$ color Calogero-Sutherland models to the case of $g l (n ∣ m)$ color CS model and show that the generators of the super-Yan…

q-alg1997★ 8 cited

Universal R-matrix Of The Super Yangian Double DY(gl(1|1))

Jin-fang Cai, Shi-kun Wang, Ke Wu +1

Based on Drinfeld realization of super Yangian Double DY(gl(1|1)), its pairing relations and universal R-matrix are given. By taking evaluation representation of universal R-matrix…

cond-mat.str-el1997★ 40 cited

A mean field theory for the spin ladder system

Xi Dai, Zhao-bin Su

In the present paper, we propose a mean field approach for spin ladders based upon the Jordan-Wigner transformation along an elaborately ordered path. We show on the mean field lev…

cond-mat.mes-hall1997★ 7 cited

Effective Mass of Composite Fermions and Fermionic Chern-Simons Theory in Temporal Gauge

Yue Yu, Zhao-Bin Su, Xi Dai

The definitions of the effective mass of the composite fermion are discussed for the half-filled Landau level problem. In a recent work, Shankar and Murthy show a finite effective…

cond-mat.str-el1997★ 8 cited

$U (1) \times S U (2)$ gauge theory of underdoped cuprate superconductors

P. A. Marchetti, Zhao-bin Su, Lu Yu

The $U (1) \times S U (2)$ Chern-Simons gauge theory is applied to study the 2-D $t - J$ model describing the normal state of underdoped cuprate superconductors. The U(1) field produces…

cond-mat.mes-hall1997★ 5 cited

Temperature-dependent crossover in fractional quantum Hall edges in the presence of Coulomb interaction

Wenjun Zheng, Yue Yu

Based on a newly derived microscopic fractional quantum Hall edge model, we study its thermodynamics at finite temperature. For the dressed energy spectrum a critical energy scale…

hep-th1997★ 3 cited

Free boson representation of DY_{\hbar}(gl_N)_k

X. M. Ding, B. Y. Hou, B. Yuan Hou +1

We construct a realization of the Yangian double DY_\hbar(gl_N) and DY_\hbar(sl_N) of an arbitrary level k in terms of free boson fields with a continuous parameter. In the \hbar \…

cond-mat.mes-hall1997★ 8 cited

The Microscopic Picture of Chiral Luttinger Liquid: Composite Fermion Theory of Edge States

Yue Yu, Wenjun Zheng, Zhongyuan Zhu

We derive a microscopic theory of the composite fermions describing the low-lying edge excitations in the fractional quantum Hall liquid. Using the composite fermion transformation…

cond-mat.mes-hall1997

Phenomenological Understanding of a Transport Regime with Reflection Symmetry in the Quantum Hall System in a Composite Fermion Picture

Wenjun Zheng, Yue Yu, Zhao-bin Su

In this paper, we present a phenomenological picture based on the composite fermion theory, in responding to the recent discovery by Shahar et al. of a new transport regime near th…

hep-ph1997

A Few Notes on Non-perturbative Parameters in Heavy Quark Expansion

Chao-shang Huang, C. S. Kim

Non-perturbative parameters to the order $O (\frac{1}{m _{Q}})$ in HQET expansion, $Λ ˉ$ , $λ_{1}$ and $λ_{2}$ , as well as the masses, $m_{b}$ and $m_{c}$ , are estimated phenomenolo…

hep-ph1997★ 5 cited

Polarized Λ_b \to X_c τνin the SM and THDM

Chao-Shang Huang, Hua-Gang Yan

The inclusive rate and $τ$ spectrum for a polarized $Λ_{b}$ -baryon to decay to charm hadronic final states and leptons $τ ν$ in the SM and a two-Higgs doublet model are computed.The…

hep-ph1997★ 11 cited

SUSY charged Higgs boson pair production via gluon-gluon collisions

Jiang Yi, Ma Wen-gan, Han Liang +2

The production of charged Higgs boson pairs from gluon-gluon fusion is studied in the minimal supersymmetric model(MSSM) at proton-proton colliders. We find that the contribution o…

astro-ph1997★ 22 cited

Stability of a hot two-temperature accretion disc with advection

Xue-Bing Wu

The effects of radial advection and thermal diffusion were considered in investigating the linear stability of an optically thin, two-temperature accretion disc. If the disc has on…

hep-ph1997

The $p_{T}$ Distribution of $J / ψ$ in QGP

Xiao-Fei Zhang, Han-Wen Huang, Xue-Qian Li +1

We consider the contributions of both color-singlet and octet $c c ˉ$ bound states for studying the suppression of $J / ψ$ production in quark gluon plasma (QGP) and have found tha…

hep-ph1997★ 26 cited

Strange Magnetic Moment and Isospin Symmetry Breaking

Bo-Qiang Ma

The small mass difference $m_{n} - m_{p} = 1.3 M e V$ between the proton and neutron leads to an excess of $n = π^{-} p$ over $p = π^{+} n$ fluctuations which can be calculated by using a light-cone…

quant-ph1997★ 20 cited

Partial Factorization of Wave Function for A Quantum Dissipation System

C. P. Sun H. B. Gao, H. F. Dong, S. R. Zhao

The microscopic approach quantum dissipation process presented by Yu and Sun [Phys. Rev., A49(1994)592, A51(1995)1845] is developed to analyze the wave function structure of dynami…