Investigation on anomalous diffusion for nuclear fusion reactions
文献类型：期刊论文
| 作者 | Bao, JD; Zhuo, YZ; Bao, JD , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China. |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2003 |
| 卷号 | 67期号:6页码:- |
| 关键词 | Transition-state Theory Quantum Brownian-motion Dissipative Systems Langevin Equation Decay-rates Dynamics Kramers Limit Force |
| ISSN号 | 0556-2813 |
| 英文摘要 | A simple model for diffusion of a particle with initial velocity coupled to a non-Ohmic environment over a barrier is proposed. An exact expression for the passing probability of the particle over a parabolic potential barrier is obtained. It is shown that in the case of subdiffusion, more than half of the particles cannot overcome the barrier, no matter what the initial velocity is. However, in the case of superdiffusion, a minimum critical velocity needed for passing over the barrier is found, which can lead to a strong friction and make the passing probability increase with kinetic energy, but still slower than in the case of normal diffusion. Effects of quantum diffusion and zero point fluctuation are also discussed. The model is applied to solve a long-standing problem in nuclear fusion reactions, though the mechanism found in this study can have a rather broad application. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000183878900038 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13286]  |
| 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 Normal Univ, Dept Phys, Beijing 100875, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Bao, JD,Zhuo, YZ,Bao, JD , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.. Investigation on anomalous diffusion for nuclear fusion reactions[J]. PHYSICAL REVIEW C,2003,67(6):-. |
| APA | Bao, JD,Zhuo, YZ,&Bao, JD , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China..(2003).Investigation on anomalous diffusion for nuclear fusion reactions.PHYSICAL REVIEW C,67(6),-. |
| MLA | Bao, JD,et al."Investigation on anomalous diffusion for nuclear fusion reactions".PHYSICAL REVIEW C 67.6(2003):-. |
入库方式： OAI收割
来源：理论物理研究所
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