Field Theoretical Description of Quantum Fluctuations in Multi-Dimensional Tunneling Approach
Physical Review D Volume 49 Issue 2
Page 1039-1046
published_at 1994-01
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| File | |
| Title ( eng ) |
Field Theoretical Description of Quantum Fluctuations in Multi-Dimensional Tunneling Approach
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| Creator |
Sasaki Misao
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| Source Title |
Physical Review D
|
| Volume | 49 |
| Issue | 2 |
| Start Page | 1039 |
| End Page | 1046 |
| Abstract |
We reformulate the WKB wave function for a multidimensional tunneling system, which represents the quasi-ground-state of the metastable vacuum, in a covariant manner. Then we extend the formalism to the case of field theory and develop a systematic method to construct the mode functions which determine the quantum state after tunneling. A clear interpretation of the resulting quantum state is given in the language of the conventional second quantization picture. As a simple example, we apply our method to a scalar field on the background of spatially homogeneous false vacuum decay. The resulting quantum state is found to be highly nontrivial, having some similarity with a thermal state. Some implications of the results are discussed.
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| NDC |
Physics [ 420 ]
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| Language |
eng
|
| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 1994-01 |
| Rights |
Copyright (c) 1994 The American Physical Society
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| Publish Type | Author’s Original |
| Access Rights | open access |
| Source Identifier |
[ISSN] 1550-7998
[DOI] 10.1103/PhysRevD.49.1039
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.49.1039
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