144 citations · 1.7k across the 89 of their papers we have counts for
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hep-th1997★ 15 cited
Non-Equilibrium Quantum Electrodynamics
C. Anastopoulos, A. Zoupas
We employ the influence functional technique to trace out the photonic contribution from full quantum electrodynamics. The reduced density matrix propagator for the spinor field is…
hep-th1996★ 20 cited
Coarse Grainings and Irreversibility in Quantum Field Theory
C. Anastopoulos
In this paper we are interested in the studying coarse-graining in field theories using the language of quantum open systems. Motivated by the ideas of Calzetta and Hu on correlati…
hep-th1996★ 4 cited
N-particle sector of quantum field theory as a quantum open system
C. Anastopoulos
We give an exposition of a technique, based on the Zwanzig projection formalism, to construct the evolution equation for the reduced density matrix corresponding to the n-particle…