45 citations · 177 across the 10 of their papers we have counts for
4 papers · 1 filter
Decoherence in an Interacting Quantum Field Theory: Thermal Case
Jurjen F. Koksma, Tomislav Prokopec, Michael G. Schmidt
We study the decoherence of a renormalised quantum field theoretical system. We consider our novel correlator approach to decoherence where entropy is generated by neglecting obser…
A Causal Alternative to Feynman's Propagator
Jurjen F. Koksma, W. Westra
The Feynman propagator used in the conventional in-out formalism in quantum field theory is not a causal propagator as wave packets are propagated virtually instantaneously outside…
Entropy and Correlators in Quantum Field Theory
Jurjen F. Koksma, Tomislav Prokopec, Michael G. Schmidt
It is well known that loss of information about a system, for some observer, leads to an increase in entropy as perceived by this observer. We use this to propose an alternative ap…
Decoherence in an Interacting Quantum Field Theory: The Vacuum Case
Jurjen F. Koksma, Tomislav Prokopec, Michael G. Schmidt
We apply the decoherence formalism to an interacting scalar field theory. In the spirit of the decoherence literature, we consider a "system field" and an "environment field" that…