Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2012-02-06
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages
Scientific paper
We show from first principles the emergence of classical Boltzmann equations for a generic quantum field that couples to a collection of background fields and sources. Our analysis is based on relativistic nonequilibrium quantum field theory as described by the Kadanoff-Baym equations and does not rely on the usual semi-classical approximations, i.e. on-shell condition, close-to-equilibrium assumption, gradient expansion and the Kadanoff-Baym ansatz. Instead, we find simple analytical solutions to the full Kadanoff-Baym equations by using the Wentzel-Kramers-Brillouin (WKB) method, and discuss under which circumstances Boltzmann behavior emerges.
Drewes Marco
Mendizabal Sebastian
Weniger Christoph
No associations
LandOfFree
Boltzmann Equations from First Principles without Gradient Expansion 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 Boltzmann Equations from First Principles without Gradient Expansion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boltzmann Equations from First Principles without Gradient Expansion will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-578441