Particle spectrum created through bubble nucleation and quantum field theory in the Milne universe
Abstract
Using the multidimensional wave function formalism, we investigate the quantum state of a scalar field inside a true vacuum bubble nucleated through false vacuum decay in flat spacetime. We develop a formalism which allows us a modebymode analysis. To demonstrate its advantage, we describe in detail the evolution of the quantum state during the tunneling process in terms of individual mode functions and interpret the result in the language of particle creation. The spectrum of the created particles is examined based on quantum field theory in the Milne universe.
 Publication:

Physical Review D
 Pub Date:
 March 1995
 DOI:
 10.1103/PhysRevD.51.2968
 arXiv:
 arXiv:grqc/9412011
 Bibcode:
 1995PhRvD..51.2968Y
 Keywords:

 04.62.+v;
 98.80.Cq;
 Quantum field theory in curved spacetime;
 Particletheory and fieldtheory models of the early Universe;
 General Relativity and Quantum Cosmology
 EPrint:
 14 pages, revtex file, 4 uuencoded compressed postscript figures appended at the end