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Bao, JD; Zhuo, YZ; Wu, XZ; Bao, JD , BEIJING INST METEOROL,BEIJING 100081,PEOPLES R CHINA.
Quantum decay rate of a nonlinear dissipative system with fission-like potential near T-c
Source PublicationZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI
KeywordActivated Rate-processes Finite Temperatures Well
AbstractWe 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.
1996
ISSN0939-7922
Volume354Issue:3Pages:293-299
Subject AreaPhysics
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12643
Collection理论物理所科研产出_SCI论文
Corresponding AuthorBao, JD , BEIJING INST METEOROL,BEIJING 100081,PEOPLES R CHINA.
Recommended Citation
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.
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