588 citations · 764 across the 22 of their papers we have counts for
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Thermal Operator and Cutting Rules at Finite Temperature and Chemical Potential
F. T. Brandt, Ashok Das, Olivier Espinosa +2
In the context of scalar field theories, both real and complex, we derive the cutting description at finite temperature (with zero/finite chemical potential) from the cutting rules…
Thermal Operator Representation of Finite Temperature Graphs II
Fernando T. Brandt, Ashok Das, Olivier Espinosa +2
Using the mixed space representation, we extend our earlier analysis to the case of Dirac and gauge fields and show that in the absence of a chemical potential, the finite temperat…
Factorization of finite temperature graphs in thermal QED
Fernando T. Brandt, Ashok Das, Olivier Espinosa +2
We extend our previous analysis of gauge and Dirac fields in the presence of a chemical potential. We consider an alternate thermal operator which relates in a simple way the Feynm…