42 citations · 435 across the 43 of their papers we have counts for
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hep-th2012★ 4 cited
Nonanalyticity of the free energy in thermal field theory
F. T. Brandt, J. Frenkel, J. B. Siqueira
We study, in a d-dimensional space-time, the nonanalyticity of the thermal free energy in the scalar phi^4 theory as well as in QED. We find that the infrared divergent contributio…
hep-th2012★ 1 cited
Causal amplitudes in the Schwinger model at finite temperature
Ashok Das, R. R. Francisco, J. Frenkel
We show, in the imaginary time formalism, that the temperature dependent parts of all the retarded (advanced) amplitudes vanish in the Schwinger model. We trace this behavior to th…