Thermal Quantum Fields without Cut-offs in 1+1 Space-time Dimensions

Christian Gerard, Christian D. Jäkel
March 26, 2004
We construct interacting quantum fields in 1+1 dimensional Minkowski space, representing neutral scalar bosons at positive temperature. Our work is based on prior work by Klein and Landau and Hoegh-Krohn

thermal states, interacting models, low dimensional QFT