8-13 August 2011
Rhode Island Convention Center
US/Eastern timezone

Multidimensional Quantum Tunneling: A Perturbative Approach

12 Aug 2011, 09:20
20m
556 (Rhode Island Convention Center)

556

Rhode Island Convention Center

Parallel contribution Particle Astrophysics and Cosmology Particle Astrophysics and Cosmology

Speaker

Nathaniel Reden (Brandeis University)

Description

We revisit multidimensional quantum tunneling, as a model for studying the state of the inflaton after a tunneling transition from a false vacuum. Previous approaches to the subject make some technically incorrect assumptions about the validity of the WKB approximation. I will present a new method that avoids these mistakes, in more carefully treating the separation between the tunneling and transverse directions. When the transverse modes begin in the adiabatic ground state in the false vacuum, we compute excitations of the transverse degrees of freedom above the adiabatic ground state as it exits the potential barrier, and the dependence of this excitation on the false vacuum and the barrier configuration. I will discuss the full field theory problem in this context.

Primary author

Nathaniel Reden (Brandeis University)

Co-authors

Albion Lawrence (Brandeis University) Cecilia Garraffo (Brandeis University, Harvard-Smithsonian Center for Astrophysics)

Presentation Materials