Quantum Field Theoretic Description of Matter in the Universe

Thoma, Markus H.

doi:10.1023/A:1015870128471

Article
Report number	astro-ph/0104078
Title	Quantum Field Theoretic Description of Matter in the Universe
Author(s)	Thoma, Markus H. (CERN)
Publication	2002
Imprint	4 Apr 2001
Number of pages	11
In:	Space Sci. Rev. 100, 1-4 (2002) pp.141-51
In:	ISSI Workshop on Matter in the Universe International Space Science Institute, Bern, Switzerland, 19 - 23 Mar 2001, pp.141-151
DOI	10.1023/A:1015870128471
Subject category	Astrophysics and Astronomy
Abstract	Quantum field theory at finite temperature and density can be used for describing the physics of relativistic plasmas. Such systems are frequently encountered in astrophysical situations, such as the early Universe, Supernova explosions, and the interior of neutron stars. After a brief introduction to thermal field theory the usefulness of this approach in astrophysics will be exemplified in three different cases. First the interaction of neutrinos within a Supernova plasma will be discussed. Then the possible presence of quark matter in a neutron star core and finally the interaction of light with the Cosmic Microwave Background will be considered.
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