Showing 1999Show all

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hep-ph1999★ 6 cited

Associated production of Higgs bosons and heavy quarks at photon colliders

Jun-Yu Guo, Yi Liao, Yu-Ping Kuang

The idea of fermion mass generation through Yukawa couplings between Higgs bosons and fermions may be tested by their associated production at future linear colliders (LC). We stud…

cond-mat.mes-hall1999★ 8 cited

Magnetization quantum tunneling at excited levels for a biaxial spin system in an arbitrarily directed magnetic field

Rong Lu, Su-Peng Kou, Jia-Lin Zhu +2

The quantum tunneling of the magnetization vector between excited levels are studied theoretically in single-domain ferromagnetic nanoparticles with biaxial crystal symmetry placed…

cond-mat.stat-mech1999★ 1 cited

Resonant quantum coherence of magnetization at excited states in nanospin systems with different crystal symmetries

Jia-Lin Zhu, Rong Lu, Su-Pen Kou +2

The quantum interference effects induced by the Wess-Zumino term, or Berry phase are studied theoretically in resonant quantum coherence of magnetization vector between degenerate…

physics.bio-ph1999★ 15 cited

Monte Carlo implementation of supercoiled double-stranded DNA

Zhang Yang, Zhou Haijun, Ouyang Zhongcan

Metropolis Monte Carlo simulation is used to investigate the elasticity of torsionally stressed double-stranded DNA, in which twist and supercoiling are incorporated as a natural r…

solv-int1999★ 25 cited

Separation of variables for soliton equations via their binary constrained flows

Yunbo Zeng, Wen-Xiu Ma

Binary constrained flows of soliton equations admitting Lax matrices have 2N degrees of freedom, which is twice as many as degrees of freedom in the case of mono-constr…

hep-ph1999★ 6 cited

Pseudo-Goldstone Boson Effects in Top-Antitop Productions at High Energy Hadron Colliders and Testing Technicolor Models

Ling Zhang, Xue-Lei Wang, Yu-Ping Kuang +1

We study the top quark pair production process p+p(anti-p)-->top+antitop in various kinds of technicolor (TC) models at the Fermilab Tevatron Run II and the CERN LHC. The s-channel…

hep-ph1999

Lepton - Chargino Mixing and R-Parity Violating SUSY

Mike Bisset, Otto C. W. Kong, Cosmin Macesanu +1

We present a study of charged lepton mass matrix diagonalization in R-parity violating SUSY. The case in which the bilinear couplings have large values is given special atten…

hep-ph1999★ 7 cited

S-wave Scattering Lengths in the SU(2) NJL Model Beyond Mean-field Approximation

Mei Huang, Pengfei Zhuang, Weiqin Chao

The S-wave scattering lengths and are calculated to the lowest order of expansion in the general framework of SU(2) NJL model beyond mean-field approxima…

math.DG1999

Homological perturbation theory and mirror symmetry

Jian Zhou

We explain how deformation theories of geometric objects such as complex structures, Poisson structures and holomorphic bundle structures lead to differential Gerstenhaber or Poiss…

solv-int1999★ 8 cited

Families of quai-bi-Hamiltonian systems and separability

Yunbo Zeng, Wen-Xiu Ma

It is shown how to construct an infinite number of families of quasi-bi-Hamiltonian (QBH) systems by means of the constrained flows of soliton equations. Three explicit QBH structu…

quant-ph1999★ 150 cited

Phase matching in quantum searching

Gui Lu Long, Yan Song Li, Wei Lin Zhang +1

Each iteration in Grover's original quantum search algorithm contains 4 steps: two Hadamard-Walsh transformations and two amplitudes inversions. When the inversion of the marked st…

nucl-th1999★ 10 cited

Studies of the electric dipole transitions of deformed rare-earth nuclei

Hua Ying Ji, Gui Lu Long, En Guang Zhao +1

Spectrum and electric dipole transition rates and relative intensities in Sm, Gd, Dy are studied in the framework of the interacting boson model…

hep-ph1999★ 3 cited

Enhanced contribution to quark and neutron electric dipole moments with small mixing of right-handed currents and CKM CP violation

Yi Liao, Xiaoyuan Li

We study the light quark and the neutron electric dipole moments (EDMs) under the assumptions that the CP source is still in the usual CKM matrix and that there is a small mixing o…

cond-mat.str-el1999★ 13 cited

Spectral Densities of Response Functions for the O(3) Symmetric Anderson and Two Channel Kondo Models

S. C. Bradley, R. Bulla, A. C. Hewson +1

The O(3) symmetric Anderson model is an example of a system which has a stable low energy marginal Fermi liquid fixed point for a certain choice of parameters. It is also exactly e…

math.DG1999★ 2 cited

On quasi-isomorphic DGBV algebras

Huai-Dong Cao, Jian Zhou

One of the methods to obtain Frobenius manifold structures is via DGBV (differential Gerstenhaber-Batalin-Vilkovisky) algebra construction. An important problem is how to identify…

quant-ph1999★ 64 cited

Arbitrary phase rotation of the marked state can not be used for Grover's quantum search algorithm

Gui Lu Long, Wei Lin Zhang, Yan Song Li +1

A misunderstanding that an arbitrary phase rotation of the marked state together with the inversion about average operation in Grover's search algorithm can be used to construct a…

hep-ph1999★ 3 cited

Massive Meson Fluctuation in NJL Model

Mei Huang, Pengfei Zhuang, Weiqin Chao

Based on the self-consistent scheme beyond mean-field approximation in the large expansion, including current quark mass explicitly, a general scheme of SU(2) NJL model is de…

cond-mat.mes-hall1999★ 7 cited

Crossover from thermal hopping to quantum tunneling in Mn_{12}Ac

S. P. Kou, J. Q. Liang, Y. B. Zhang +2

The crossover from thermal hopping to quantum tunneling is studied. We show that the decay rate with dissipation can accurately be determined near the crossover temperature. Be…

math.QA1999

Quantized Heisenberg Space

Hans Plesner Jakobsen, Hechun Zhang

We investigate the algebra introduced by Faddeev, Reshetikhin and Takhadjian. In case is a primitive root of unity the degree, the center, and the set of irreducible r…

hep-ph1999★ 33 cited

Derivation of the Effective Chiral Lagrangian for Pseudoscalar Mesons from QCD

Qing Wang, Yu-Ping Kuang, Xue-Lei Wang +1

We formally derive the chiral Lagrangian for low lying pseudoscalar mesons from the first principles of QCD considering the contributions from the normal part of the theory without…

cond-mat.soft1999★ 15 cited

Quantum-Classical Phase Transition of Escape rate in Biaxial Spin Particles

Y. -B. Zhang, J. -Q. Liang, H. J. W. Muller-Kirsten +3

The escape rates of the biaxial single domain spin particles with and without an applied magnetic field are investigated. Using the strict potential field description of spin syste…

hep-ph1999★ 10 cited

Vanishing Contribution to Quark Electric Dipole Moment in the 2HD Model with CKM CP Violation

Yi Liao, Xiaoyuan Li

In the standard model (SM) of electroweak interactions, CP noninvariance arises from the nonzero phase in the CKM matrix. Its contribution to the quark electric dipole moment (EDM)…

cond-mat.stat-mech1999★ 1 cited

Scaling for domain growth in the Ising model with competing dynamics

Zhi-Feng Huang, Bing-Lin Gu, Yun Tang

We study the domain growth of the one-dimensional kinetic Ising model under the competing influence of Glauber dynamics at temperature T and Kawasaki dynamics with a configuration-…