Thermal and curvature effects to dynamical symmetry breaking
Physical Review D Volume 56 Issue 8
Page 5097-5107
published_at 1997-10-15
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| File | |
| Title ( eng ) |
Thermal and curvature effects to dynamical symmetry breaking
|
| Creator |
Ishikawa Ken-ichi
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| Source Title |
Physical Review D
|
| Volume | 56 |
| Issue | 8 |
| Start Page | 5097 |
| End Page | 5107 |
| Abstract |
We investigate the thermal and curvature effects to dynamical symmetry breaking in a four-fermion model. The effective potential is evaluated in the leading order of the 1/N expansion at finite temperature on positive curvature space R⊗SD-1 or on negative curvature space R⊗HD-1 with varying temperature and curvature. We argue the combined effects of the temperature and curvature to the phase structure. The broken chiral symmetry is restored for a sufficiently high temperature and/or large positive curvature. The negative curvature enhances the chiral symmetry breaking. It is found that the thermal effect restores the symmetry at high temperature even in negative curvature spacetime.
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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 | 1997-10-15 |
| Rights |
Copyright (c) 1997 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.56.5097
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.56.5097
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