Yang-Lee Circle Theorem for an Antiferromagnetic Heisenberg Ladder
WANG Xian-Zhi
Department of Physics, Shanghai Jiao Tong University, Shanghai 200030
Yang-Lee Circle Theorem for an Antiferromagnetic Heisenberg Ladder
WANG Xian-Zhi
Department of Physics, Shanghai Jiao Tong University, Shanghai 200030
关键词 ：
64.60.Cn ,
75.10.Hk ,
75.10.Jm
Abstract ： The Yang-Lee zeros of an antiferromagnetic Heisenberg ladder model are determined. It is found that if J4 ≤ 0 Yang-Lee zeros are located on the unit circle and on the negative real axis in the complex activity plane. In particular, if J4 ≤ 0 and 2J2 ≥ J4 , Yang-Lee zeros are located on the unit circle and Yang-Lee circle theorem is valid. If J4 > 0, Yang Lee zeros are locted on some complicated curves.
Key words ：
64.60.Cn
75.10.Hk
75.10.Jm
出版日期: 2001-07-01
:
64.60.Cn
(Order-disorder transformations)
75.10.Hk
(Classical spin models)
75.10.Jm
(Quantized spin models, including quantum spin frustration)
[1]
N. Seferoglu;A. Özkan;B. Kutlu. Finite Size Effect for the First-Order Phase Transition of the Three-Dimensional Blume--Capel Model on a Cellular Automaton
[2]
LIU Hui-Ping;SUN Yun-Zhou;YI Lin. Heat Conductivity in a Two-Dimensional Finite-Size Spin System with Dzyaloshinskii--Moriya Interactions
[3]
CAO Heng;YUAN Song-Liu;SHANG Jing-Lin;JIANG Xiu-Lin;LI Pai;WANG Yong-Qiang;LIU Li. Monte Carlo Study of Griffiths Phase in Randomly Site Diluted Ising Magnetic System
[4]
LI Peng-Fei;CHEN Yu-Guang;CHEN Hong. Anisotropic Effects on Magnetoelastic Transition in Magnetic Molecular Rings
[5]
KE San-Min;YUE Rui-Hong. Exact Solution of the One-Dimensional N-Component Bariev Model with a Hard-Core Repulsion under Open Boundary Conditions
[6]
LIU Hui-Ping;SUN Yun-Zhou;YI Lin. New Monte Carlo Simulations to a Generalized XY Model
[7]
SHI Qing-Fan;SUN Gang;HOU Mei-Ying;LU Kun-Quan. Segregation in Vertically Vibrated Binary Granular Mixtures with Same Size
[8]
CAO Min;ZHU Shi-Qun. Effects of Anisotropy on Pair-wise Entanglement of a Four-Qubit Heisenberg
[9]
HOU Jing-Min;TIAN Li-Jun;GE Mo-Lin. Two-Qubit Quantum Logic Gate in Molecular Magnets
[10]
WANG Yuan-Feng;CAO Jun-Peng;WANG Yu-Peng. Entanglement in Anisotropic Heisenberg Model with Non-Uniform External Fields
[11]
WANG Cheng-Zhi;LI Chun-Xian;GUO Guang-Can. Ground-State Entanglement and Mixture in an XXZ Spin Chain
[12]
LI Guang-Liang. Exact Solution for the Osp(1|2n) Vertex Model under Open Boundary Conditions
[13]
YANG Chun-Xia;ZHOU Tao;ZHOU Pei-Ling;LIU Jun;TANG Zi-Nan. Evolvement Complexity in an Artificial Stock Market
[14]
XUE Wei-Xing;WANG Yu-Peng. Integrability of the Inozemtsev Spin Chain with Open Boundary
Conditions
[15]
LI Zai-Dong;LI Lu;LIANG Jiu-Qing. Soliton Collision in a Ferromagnetic Spin Chain Driven by a Magnetic Field
2001, Vol. 18 
