Equivalence of light-front and conventional thermal field theory

Details Equivalence of light-front and conventional thermal field theory Equivalence of light-front and conventional thermal field theory

2003-05-13

arxiv.org/abs/hep-th/0305115v3

Phys.Rev. D69 (2004) 125005

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, revtex4, appendix added

Scientific paper

10.1103/PhysRevD.69.125005

It is shown that light front thermal field theory is equivalent to conventional thermal field theory. The proof is based on the use of spectral representations, and applies to all Lagrangians for which such equivalence has been proven at zero temperature. It is also pointed out that conventional spectral functions can be used to express light-front finite temperature free propagators. As an application of our approach, we derive the light-front finite temperature spin 1/2 fermion propagator in full Dirac space.

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