Functional derivation of Casimir energy at non-zero 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 non-zero temperature. We use this technique to obtain the Casimir energy density and pressure at arbitrary temperatures.
- Publication:
-
arXiv e-prints
- Pub Date:
- March 1998
- DOI:
- arXiv:
- arXiv:hep-th/9803009
- Bibcode:
- 1998hep.th....3009G
- Keywords:
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- High Energy Physics - Theory;
- Condensed Matter;
- High Energy Physics - Phenomenology;
- Quantum Physics
- E-Print:
- 8 pages, Latex, uses epsf.sty for 1 embedded figure (some references added