A path integration approach to relativistic finite density problems and its particle content
High Energy Physics - Theory
2007-05-23 v1 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
A path integration formulation for the finite density and temperature problems is shown to be consistent with the thermodynamics using an 8 component ``real'' representation for the fermion fields by applying it to a free fermion system. A relativistic quantum field theory is shown to be smoothly approached at zero temperature by a real-time thermal field theory so derived even at a finite density. The analysis leads to a new representation for the fermion fields which is shown to be inequivalent to the conventional 4 component theory at the quantum level by having a mirror universe with observable effects and to be better behaved at short distances.
Cite
@article{arxiv.hep-th/9611166,
title = {A path integration approach to relativistic finite density problems and its particle content},
author = {S. Ying},
journal= {arXiv preprint arXiv:hep-th/9611166},
year = {2007}
}
Comments
7 pages, RevTex, 1 figure