Semiclassical approximation for the partition function in QFT
In this paper we discuss the semiclassical approximation for the thermodynamics of scalar fields. We construct a semiclassical propagator in terms of two solutions of an ordinary differential equation. The main result is an analytic (non-perturbative) expression for the partition function written in terms of known quantities.
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| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedade Brasileira de Física
2007
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000100011 |
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