Quantum fluctuations and instantons
Eliezer Rabinovici (Hebrew University of Jerusalem)
Abstract: After a review of Coleman's work on the fate of a false vacuum we turn to consider the decay involved in circumstances where the methods suggested by Coleman run into difficulties. We find that in those cases quantum fluctuations play a crucial role. We suggest that for a certain range of parameters a classical picture can be maintained. This involves identifying ultra-violet and infra-red cut offs whose value is induced by the parameters of the potential. In the presence of these cutoffs one of Coleman's boundary condition needs to be reconsidered. This allows to obtain a new class of O(N) invariant solutions which lead to acceptable results for the decay constant of the false vacuum.
general relativity and quantum cosmologyHEP - phenomenologyHEP - theorymathematical physics
Audience: researchers in the topic
Series comments: Description: Seminars in high energy physics
Weekly HEP Seminars in the broad spectrum of High Energy Physics at University of Crete.
Recordings of past seminars can be found at conference.physics.uoc.gr/b/hep-kzk-2ad
| Organizers: | Panagiotis Betzios*, Adam Bzowski |
| *contact for this listing |