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ID 18676
file
creator
Kimura, Daiji
Murata, Tsukasa
NDC
Physics
abstract
We investigate scalar and spinor field theories in a constant magnetic field at finite temperature and chemical potential. In an external constant magnetic field the exact solution of the two-point Green functions are obtained by using the Fock-Schwinger proper-time formalism. We extend it to the thermal field theory and find the expressions of the Green functions exactly for the temperature, the chemical potential and the magnetic field. For practical calculations the contour of the proper-time integral is carefully selected. The physical contour is discussed in a constant magnetic field at finite temperature and chemical potential. As an example, behavior of the vacuum self-energy is numerically evaluated for the free scalar and spinor fields.
journal title
International Journal of Modern Physics A
volume
Volume 20
issue
Issue 20-21
start page
4995
end page
5007
date of issued
2005-08
publisher
World Scientific Publishing Company
issn
0217-751X
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Electronic version of an article published as International Journal of Modern Physics A Vol.20 No.20-21 pp.4995-5007 DOI:10.1142/S0217751X05025073 Copyright (c) 2005 World Scientific Publishing Company http://www.worldscientific.com/
relation is version of URL
http://dx.doi.org10.1142/S0217751X05025073
department
Information Media Center