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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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3 papers · 2 filters
A Generalized Fluctuation-Dissipation Theorem for Nonlinear Response Functions
Enke Wang, Ulrich Heinz
A nonlinear generalization of the Fluctuation-Dissipation Theorem (FDT) for the n-point Green functions and the amputated 1PI vertex functions at finite temperature is derived in t…
n-point functions at finite temperature
Defu Hou, Enke Wang, Ulrich Heinz
We study -point functions at finite temperature in the closed time path formalism. With the help of two basic column vectors and their dual partners we derive a compact decompos…
Ward Identities in Non-equilibrium QED
M. E. Carrington, Hou Defu, Markus H. Thoma
We verify the QED Ward identity for the two- and three -point functions at non-equilibrium in the HTL limit. We use the Keldysh formalism of real time finite temperature field theo…