Quantum decay rate of a nonlinear dissipative system with fission-like potential near T-c
文献类型：期刊论文
| 作者 | Bao, JD; Zhuo, YZ; Wu, XZ; Bao, JD , BEIJING INST METEOROL,BEIJING 100081,PEOPLES R CHINA. |
| 刊名 | ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI
 |
| 出版日期 | 1996 |
| 卷号 | 354期号:3页码:293-299 |
| 关键词 | Activated Rate-processes Finite Temperatures Well |
| ISSN号 | 0939-7922 |
| 英文摘要 | We use a thermodynamic scheme (imaginary free energy method) in terms of the path integral technique to study the quantum decay rates of a metastable state system coupled to a heat bath in the crossover temperature (T-c) region. In this region the transition between thermally activated decay and tunneling occurs. A nonlinear coupling form factor is used to overcome the divergent integral in the partition function near T-c. The decay rate formula based on the steepest descent approximation has been improved. A method is developed to calculate the real and imaginary parts of the partition function which combines a random walk method with fast-Fourier transform Monte-Carlo evaluation. For a nonlinear dissipative system with a damping correlation kernel of exponential form, the accurate numerical calculations are presented. The effects of nonlinear and frequency-dependent damping on the rate are shown. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12643]  |
| 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 INST METEOROL,BEIJING 100081,PEOPLES R CHINA. |
| 推荐引用方式 GB/T 7714 | Bao, JD,Zhuo, YZ,Wu, XZ,et al. Quantum decay rate of a nonlinear dissipative system with fission-like potential near T-c[J]. ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI,1996,354(3):293-299. |
| APA | Bao, JD,Zhuo, YZ,Wu, XZ,&Bao, JD , BEIJING INST METEOROL,BEIJING 100081,PEOPLES R CHINA..(1996).Quantum decay rate of a nonlinear dissipative system with fission-like potential near T-c.ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI,354(3),293-299. |
| MLA | Bao, JD,et al."Quantum decay rate of a nonlinear dissipative system with fission-like potential near T-c".ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI 354.3(1996):293-299. |
入库方式： OAI收割
来源：理论物理研究所
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