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Chin. Phys. B, 2016, Vol. 25(6): 060505    DOI: 10.1088/1674-1056/25/6/060505
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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 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
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.

Keywords:  exclusion process      roadblocks      diffusion      unbinding/rebinding  
Received:  13 February 2016      Revised:  04 March 2016      Accepted manuscript online: 
PACS:  05.60.-k (Transport processes)  
  87.16.Nn (Motor proteins (myosin, kinesin dynein))  
  87.10.Hk (Lattice models)  
Fund: 

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).

Corresponding Authors:  Ning Guo     E-mail:  guoning_945@126.com

Cite this article: 

Ning Guo(郭宁), Jin-Yong Chen(陈金邕), Mao-Bin Hu(胡茂彬), Rui Jiang(姜锐) An exclusion process with dynamic roadblocks 2016 Chin. Phys. B 25 060505

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