Two-dimensional tunneling in a potential with two transition states

Autor: V. A. Benderskii, V. I. Goldanskii, Dmitrii E. Makarov
Rok vydání: 1991
Předmět:
Zdroj: Chemical Physics Letters. 186:517-521
ISSN: 0009-2614
DOI: 10.1016/0009-2614(91)90461-h
Popis: Two-dimensional tunneling is studied for a model potential V(Q, X) = V0(Q) + 1 2 λ(Q2−Q20)X2+ 1 4 αX4. V0(Q) is a symmetric double-well potential which has two transition states placed symmetrically in the driving line. Extremal trajectories are shown to be of three types replacing each other at bifurcation values of the parameters Q0 and β=1/kBT: The doubly degenerate path near the saddle points (i) occurs in the Arrhenius region (β
Databáze: OpenAIRE