(Color online) (a) The accurate factor as a function of temperature for with and . (b) The accurate factor for ; the potential (solid curve) and its LHA (dashed curve) are plotted in the inset.
(Color online) (a) The metastable potentials of three kinds. The parabolic potential : ; the cubic potential : and ; and the quartic potential : and . The other parameters used are , and . (b) The corresponding time-dependent escape rates by the use of and .
Comparison of the stationary escape rate calculated by various methods.
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