Tunneling in a Time Dependent Setting

Details Tunneling in a Time Dependent Setting Tunneling in a Time Dependent Setting

1996-04-24

arxiv.org/abs/hep-th/9604151v1

Phys.Rev. D54 (1996) 7407-7420

Physics

High Energy Physics

High Energy Physics - Theory

29 pages, with 9 Postscript figures, uses epsf.tex and fps.sty

Scientific paper

10.1103/PhysRevD.54.7407

A standard approach to analyzing tunneling processes in various physical contexts is to use instanton or imaginary time path techniques. For systems in which the tunneling takes place in a time dependent setting, the standard methods are often applicable only in special cases, e.g. due to some additional symmetries. We consider a collection of time dependent tunneling problems to which the standard methods cannot be applied directly, and present an algorithm, based on the WKB approximation combined with complex time path methods, which can be used to calculate the relevant tunneling probabilities. This collection of problems contains, among others, the spontaneous nucleation of topological defects in an expanding universe, the production of particle - antiparticle pairs in a time dependent electric field, and false vacuum decay in field theory from a coherently oscillating initial state. To demonstrate the method, we present detailed calculations of the time dependent decay rates for the last two examples.

Affiliated with

Also associated with

No associations

Rating

Tunneling in a Time Dependent Setting does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Tunneling in a Time Dependent Setting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunneling in a Time Dependent Setting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-551361