Functional derivation of Casimir energy at nonzero temperature
Abstract
Performing functional integration of the free Lagrangian, we find the vacuum energy of a field. The functional integration is performed in a way which easily generalizes to systems at nonzero temperature. We use this technique to obtain the Casimir energy density and pressure at arbitrary temperatures.
 Publication:

arXiv eprints
 Pub Date:
 March 1998
 DOI:
 10.48550/arXiv.hepth/9803009
 arXiv:
 arXiv:hepth/9803009
 Bibcode:
 1998hep.th....3009G
 Keywords:

 High Energy Physics  Theory;
 Condensed Matter;
 High Energy Physics  Phenomenology;
 Quantum Physics
 EPrint:
 8 pages, Latex, uses epsf.sty for 1 embedded figure (some references added