中国物理B ›› 2016, Vol. 25 ›› Issue (6): 60505-060505.doi: 10.1088/1674-1056/25/6/060505

• GENERAL • 上一篇    下一篇

An exclusion process with dynamic roadblocks

Ning Guo(郭宁), Jin-Yong Chen(陈金邕), Mao-Bin Hu(胡茂彬), Rui Jiang(姜锐)   

  1. 1 School of Engineering Science, University of Science and Technology of China, Hefei 230026, China;
    2 MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, China
  • 收稿日期:2016-02-13 修回日期:2016-03-04 出版日期:2016-06-05 发布日期:2016-06-05
  • 通讯作者: Ning Guo E-mail:guoning_945@126.com
  • 基金资助:

    Project supported by the National Basic Research Program of China (Grant No. 2012CB725404) and the National Natural Science Foundation of China (Grant Nos. 11422221, 71171185, and 71371175).

An exclusion process with dynamic roadblocks

Ning Guo(郭宁)1, Jin-Yong Chen(陈金邕)1, Mao-Bin Hu(胡茂彬)1, Rui Jiang(姜锐)1,2   

  1. 1 School of Engineering Science, University of Science and Technology of China, Hefei 230026, China;
    2 MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, China
  • Received:2016-02-13 Revised:2016-03-04 Online:2016-06-05 Published:2016-06-05
  • Contact: Ning Guo E-mail:guoning_945@126.com
  • Supported by:

    Project supported by the National Basic Research Program of China (Grant No. 2012CB725404) and the National Natural Science Foundation of China (Grant Nos. 11422221, 71171185, and 71371175).

摘要:

We study an exclusion process with multiple dynamic roadblocks. Each roadblock can move diffusively forward or backward with different rates, as well as unbind from/rebind to a free site. By Monte Carlo simulations, the two moving types are investigated in combination of roadblock number. The case of only diffusive roadblocks shows an asymmetric current-density relation. The case of only long-range jumping roadblocks presents that flux decreases with increasing roadblock number.

关键词: exclusion process, roadblocks, diffusion, unbinding/rebinding

Abstract:

We study an exclusion process with multiple dynamic roadblocks. Each roadblock can move diffusively forward or backward with different rates, as well as unbind from/rebind to a free site. By Monte Carlo simulations, the two moving types are investigated in combination of roadblock number. The case of only diffusive roadblocks shows an asymmetric current-density relation. The case of only long-range jumping roadblocks presents that flux decreases with increasing roadblock number.

Key words: exclusion process, roadblocks, diffusion, unbinding/rebinding

中图分类号:  (Transport processes)

  • 05.60.-k
87.16.Nn (Motor proteins (myosin, kinesin dynein)) 87.10.Hk (Lattice models)