A Scheme for Information Erasure in a Double-Well Potential  

作　　者：王辛欣 包景东 

机构地区：[1]Department of Physics, Beijing Normal University, Beijing 100875

出　　处：《Chinese Physics Letters》2010年第2期47-49,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10674016 and 10875013, and the Specialized Research Foundation for the Doctoral Program of Higher Education under Grant No 20080027005.

摘　　要：We design an experimental scheme to realize one-bit information erasure and restoring processes by considering an overdamped colloidal particle in a double-well optical trap, which is added by a controllable laser tweezer. Using the Monte Carlo method, we simulate numerically the Langevin equation to calculate the mean work spent during the entire process and validate the entropy production fluctuation theory. Our result shows that the distribution of entropy production becomes narrow with increasing temperature and becomes stationary, represents the diminishing extent of irreversibility.We design an experimental scheme to realize one-bit information erasure and restoring processes by considering an overdamped colloidal particle in a double-well optical trap, which is added by a controllable laser tweezer. Using the Monte Carlo method, we simulate numerically the Langevin equation to calculate the mean work spent during the entire process and validate the entropy production fluctuation theory. Our result shows that the distribution of entropy production becomes narrow with increasing temperature and becomes stationary, represents the diminishing extent of irreversibility.

关 键 词：Chinese climate network complex systems small world COMMUNITY 

分 类 号：O413.1[理学—理论物理] TP31[理学—物理]