Self-excitation of the tunneling scalar field in false vacuum decay
Physical Review D - Particles, Fields, Gravitation and Cosmology Volume 53 Issue 4
Page 2045-2061
published_at 1996-02-15
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| File | |
| Title ( eng ) |
Self-excitation of the tunneling scalar field in false vacuum decay
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| Creator |
Hamazaki Takashi
Sasaki Misao
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| Source Title |
Physical Review D - Particles, Fields, Gravitation and Cosmology
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| Volume | 53 |
| Issue | 4 |
| Start Page | 2045 |
| End Page | 2061 |
| Abstract |
A method to determine the quantum state of a scalar field after O(4)-symmetric bubble nucleation has been developed recently. The method has the advantage that it concisely gives us a clear picture of the resultant quantum state. In particular, one may interpret the excitations as a particle creation phenomenon just as in the case of particle creation in curved spacetime. As an application, we investigate in detail the spectrum of quantum excitations of the tunneling field when it undergoes false vacuum decay. We consider a tunneling potential which is piecewise quadratic and hence, is simple enough to allow us an analytical treatment. We find a strong dependence of the excitation spectrum upon the shape of the potential on the true vacuum side. We then discuss features of the excitation spectrum common to general tunneling potentials not restricted to our simple model.
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 1996-02-15 |
| Rights |
Copyright (c) 1996 The American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 1550-7998
[DOI] 10.1103/PhysRevD.53.2045
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.53.2045
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