An intrinsic multi-dimensional mechanism of barrier tunneling
Abstract
A new semiclassical mechanism of multi-dimensional tunneling, which originates in the complexified stable and unstable manifolds of the unstable saddle (or unstable periodic orbit) on top of the potential barrier, causes a remarkable plateau-like structure in the tunneling spectrum. Such a mechanism is very universal and works when the instanton mechanism breaks down due to the strong coupling between the degrees of freedom.
- Publication:
-
EPL (Europhysics Letters)
- Pub Date:
- July 2005
- DOI:
- 10.1209/epl/i2004-10538-1
- Bibcode:
- 2005EL.....71..193T