One-dimensional asymmetric diffusion model without exclusion

被引:26
|
作者
Sasamoto, T [1 ]
Wadati, M [1 ]
机构
[1] Univ Tokyo, Grad Sch Sci, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan
来源
PHYSICAL REVIEW E | 1998年 / 58卷 / 04期
关键词
D O I
10.1103/PhysRevE.58.4181
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
A one-dimensional asymmetric diffusion model on a periodic chain is proposed. The model is defined in terms of the master equation. In contrast with the asymmetric simple exclusion process, particles are not subject to the exclusion interaction: each lattice site can accommodate more than one particle. The model is solved by the Bethe ansatz method and the resulting Bethe equation is analyzed in the thermodynamic limit. The finite size correction of the energy gap is calculated to be O(L-3/2), where L denotes the length of the chain. [S1063-651X(98)12109-8].
引用
收藏
页码:4181 / 4190
页数:10
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