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Bao, JD; Abe, Y; Zhuo, YZ; Bao, JD , Beijing Meteorol Coll, Beijing 100081, Peoples R China.
Rocked quantum periodic systems in the presence of coordinate-dependent friction
Source PublicationPHYSICAL REVIEW E
KeywordActivated Rate-processes Induced Transport Noise Ratchets State
AbstractWe 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.
1998
ISSN1539-3755
Volume58Issue:3Pages:2931-2937
Subject AreaPhysics
Indexed BySCI
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12272
Collection理论物理所科研产出_SCI论文
Corresponding AuthorBao, JD , Beijing Meteorol Coll, Beijing 100081, Peoples R China.
Recommended Citation
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.
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