Study of the Multidimensional Kramers Equation

Zhong Yunxiao; Hu Jimin

Chinese Physics C> 1994, Vol. 18> Issue(S4) : 415-420

Study of the Multidimensional Kramers Equation

Zhong Yunxiao ,
Hu Jimin

Department of Technology Physics, Peking University, China

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Abstract：
The position of saddle point and potential energy surface near the saddle point are studied for a given fissioning system. Multidimensional inertia and viscosity tensors are calculated with both irrotational flow and Werner-Wheeler approximation, and the fission rate is calculated with multidimensional Kxamers formula. It is found that the fission rate increases reasonably with the number of dimensions considered and changes only slightly with the assumptions used in kinetic energy calculations. The results of calculations indicate that a suitable three-dimensional calculation will be sufficient to yield accurate fission rates.
- multidimensional potential energy surface ,
- inertia and viscosity ,
- Kramers formula ,
- fission rate
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Zhong Yunxiao and Hu Jimin. Study of the Multidimensional Kramers Equation[J]. Chinese Physics C, 1994, 18(S4): 415-420.

Zhong Yunxiao and Hu Jimin. Study of the Multidimensional Kramers Equation[J]. Chinese Physics C, 1994, 18(S4): 415-420. shu

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Received: 1993-06-21

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of the Multidimensional Kramers Equation

Zhong Yunxiao
Hu Jimin

Department of Technology Physics, Peking University, China

Received Date: 1993-06-21

Abstract: The position of saddle point and potential energy surface near the saddle point are studied for a given fissioning system. Multidimensional inertia and viscosity tensors are calculated with both irrotational flow and Werner-Wheeler approximation, and the fission rate is calculated with multidimensional Kxamers formula. It is found that the fission rate increases reasonably with the number of dimensions considered and changes only slightly with the assumptions used in kinetic energy calculations. The results of calculations indicate that a suitable three-dimensional calculation will be sufficient to yield accurate fission rates.