Decoherence and Dynamical Entropy Generation in Quantum Field Theory

Details Decoherence and Dynamical Entropy Generation in Quantum Field Theory Decoherence and Dynamical Entropy Generation in Quantum Field Theory

2011-01-27

arxiv.org/abs/1101.5323v2

Physics

Quantum Physics

Scientific paper

We formulate a novel approach to decoherence based on neglecting observationally inaccessible correlators. We apply our formalism to a renormalised interacting quantum field theoretical model. Using out-of-equilibrium field theory techniques we show that the Gaussian von Neumann entropy for a pure quantum state increases to the interacting thermal entropy. This quantifies decoherence and thus measures how classical our pure state has become. The decoherence rate is equal to the single particle decay rate in our model. We also compare our approach to existing approaches to decoherence in a simple quantum mechanical model. We show that the entropy following from the perturbative master equation suffers from physically unacceptable secular growth.

Affiliated with

Also associated with

No associations

Rating

Decoherence and Dynamical Entropy Generation in Quantum Field Theory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Decoherence and Dynamical Entropy Generation in Quantum Field Theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decoherence and Dynamical Entropy Generation in Quantum Field Theory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-545637