Equivalence of light-front and conventional thermal field theory

Abstract

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.

arXiv comment12 pages, revtex4, appendix added

References in corpus (6)

• Physics of Thermal QCD
• Light-front field theories at finite temperature
• Thermal Field Theory and Generalized Light Front Coordinates
• QED(1+1) at Finite Temperature -- a Study with Light-Cone Quantisation
• Thermal Self-Energies Using Light-Front Quantization
• Physics at the Light-Front

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• Light-front Schwinger Model at Finite Temperature
• Light front QED${}_{1+1}$ at finite temperature
• Finite Temperature Gauge Theory from the Transverse Lattice
• Massless $Ad{S}_2$ scattering and Bethe ansatz
• Comment on "Light-front Schwinger model at finite temperature"
• Light-Front Quantization and QCD Phenomena