54 citations · 81 across the 3 of their papers we have counts for
3 papers
hep-ph2004★ 11 cited
The 2 - particle irreducible effective action in gauge theories
E. Calzetta
The goal of this paper is to develop the formalism of the two-particle irreducible (2PI) \cite{LW61} (or Cornwall - Jackiw - Tomboulis (CJT) \cite {CJT}) effective action (EA) in a…
hep-ph2003★ 16 cited
Correlation Entropy of an Interacting Quantum Field and H-theorem for the O(N) Model
E. A. Calzetta, B. L. Hu
Following the paradigm of Boltzmann-BBGKY we propose a correlation entropy (of the nth order) for an interacting quantum field, obtained by `slaving' (truncation with causal factor…
gr-qc1998★ 54 cited
Defect Formation and Critical Dynamics in the Early Universe
G. J. Stephens, E. A. Calzetta, B. L. Hu +1
We study the nonequilibrium dynamics leading to the formation of topological defects in a symmetry-breaking phase transition of a quantum scalar field with λΦ^4 self-interaction in…