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题名: Harmonic velocity noise: Non-Markovian features of noise-driven systems at long times
作者: Bao, JD ;  Song, YL ;  Ji, Q ;  Zhuo, YZ
刊名: PHYSICAL REVIEW E
出版日期: 2005
卷号: 72, 期号:1, 页码:-
关键词: FLUCTUATION-DISSIPATION THEOREM ;  QUASI-MONOCHROMATIC NOISE ;  BROWNIAN MOTORS ;  PROBABILITY-DISTRIBUTIONS ;  ANOMALOUS DIFFUSION ;  LANGEVIN-EQUATIONS ;  COLORED NOISE ;  ESCAPE RATES ;  RATCHETS ;  TRANSPORT
学科分类: Physics
通讯作者: Bao, JD , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
部门归属: Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China; Hebei Univ Technol, Dept Phys, Tianjin 300130, Peoples R China; China Inst Atom Energy, Beijing 102413, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We propose a harmonic velocity noise with a broadband feature, which is the time derivative of the harmonic noise. If this noise is regarded as a thermal one, the system has a vanishing effective friction and it should induce ballistic diffusion of a free particle at long times. The effective temperature of the system coupled to such a structured heat bath represented by the harmonic velocity noise is introduced. This means that any initial preparation will approach asymptotically a preparation-dependent variance and mean value for velocity variable. Thus the fluctuation-dissipation theorem does not hold as there is no unique stationary state being connected with a breakdown of ergodicity. This noise can show greenness when it is taken as an external noise source to drive a correlation ratchet.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000230886900020
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13794
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Bao, JD,Song, YL,Ji, Q,et al. Harmonic velocity noise: Non-Markovian features of noise-driven systems at long times[J]. PHYSICAL REVIEW E,2005,72(1):-.
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