摘要
The fission rate of <sup>240</sup>Pu at its saddle point is obtained by using generalized coherentstate ansatz for large friction case. The numerical results indicate that the quasi-stationary fiss-ion rate approaches Kramers’ rate and the transient behaviour agrees with that given in previousstudies. Moreover, the relationship between the first eigenvalue λ<sub>1</sub> and the quasi-stationary fiss-ion rate λ<sub>qs</sub> is derived. In the case of high temperature, we also pay attention to the overshoot-ing.
The fission rate of <sup>240</sup>Pu at its saddle point is obtained by using generalized coherent state ansatz for large friction case. The numerical results indicate that the quasi-stationary fiss- ion rate approaches Kramers’ rate and the transient behaviour agrees with that given in previous studies. Moreover, the relationship between the first eigenvalue λ<sub>1</sub> and the quasi-stationary fiss- ion rate λ<sub>qs</sub> is derived. In the case of high temperature, we also pay attention to the overshoot- ing.
