Rocked quantum periodic systems in the presence of coordinate-dependent friction
文献类型：期刊论文
| 作者 | Bao, JD; Abe, Y; Zhuo, YZ; Bao, JD , Beijing Meteorol Coll, Beijing 100081, Peoples R China. |
| 刊名 | PHYSICAL REVIEW E
 |
| 出版日期 | 1998 |
| 卷号 | 58期号:3页码:2931-2937 |
| 关键词 | Activated Rate-processes Induced Transport Noise Ratchets State |
| ISSN号 | 1539-3755 |
| 英文摘要 | We study rocked periodic systems with quantum fluctuations and coordinate-dependent friction. The steady current along the direction of the external driving force is evaluated numerically in terms of the path-integral Monte Carlo method and discussed in terms of the steepest descent approximation. Above the crossover temperature T-c a classical-like distribution function is given in order to calculate the least nonvanishing eigenvalue of the Fokker-Planck equation, thus one can finally obtain an expression of the current for moderate-to-strong damping. The influence of nonlinear quantum dissipation on the magnitude and the direction of the average current is observed. The classical current is also calculated using the Langevin simulation. The results show that when the friction is a periodic function of the coordinate, a net current averaging over the two directions arises even in the absence of both spatial and time asymmetry. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000076011200042 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12272]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Bao, JD , Beijing Meteorol Coll, Beijing 100081, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Bao, JD,Abe, Y,Zhuo, YZ,et al. Rocked quantum periodic systems in the presence of coordinate-dependent friction[J]. PHYSICAL REVIEW E,1998,58(3):2931-2937. |
| APA | Bao, JD,Abe, Y,Zhuo, YZ,&Bao, JD , Beijing Meteorol Coll, Beijing 100081, Peoples R China..(1998).Rocked quantum periodic systems in the presence of coordinate-dependent friction.PHYSICAL REVIEW E,58(3),2931-2937. |
| MLA | Bao, JD,et al."Rocked quantum periodic systems in the presence of coordinate-dependent friction".PHYSICAL REVIEW E 58.3(1998):2931-2937. |
入库方式： OAI收割
来源：理论物理研究所
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