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.
| Original language | English |
|---|---|
| Pages (from-to) | 2045-2061 |
| Number of pages | 17 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 53 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Jan 1 1996 |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)
Cite this
Self-excitation of the tunneling scalar field in false vacuum decay. / Hamazaki, Takashi; Sasaki, Misao; Tanaka, Takahiro; Yamamoto, Kazuhiro.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 53, No. 4, 01.01.1996, p. 2045-2061.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Self-excitation of the tunneling scalar field in false vacuum decay
AU - Hamazaki, Takashi
AU - Sasaki, Misao
AU - Tanaka, Takahiro
AU - Yamamoto, Kazuhiro
PY - 1996/1/1
Y1 - 1996/1/1
N2 - 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.
AB - 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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U2 - 10.1103/PhysRevD.53.2045
DO - 10.1103/PhysRevD.53.2045
M3 - Article
VL - 53
SP - 2045
EP - 2061
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 1550-7998
IS - 4
ER -