Nonlinear dynamics of fermions during preheating

Details Nonlinear dynamics of fermions during preheating Nonlinear dynamics of fermions during preheating

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009nupha.820..215g&link_type=abstract

Nuclear Physics A, Volume 820, Issue 1-4, p. 215-218c.

Physics

Nuclear Physics

Particle-Theory And Field-Theory Models Of The Early Universe, Nonequilibrium And Irreversible Thermodynamics

Scientific paper

We study the role of dynamical fermions during preheating after inflation. We compute the nonequilibrium dynamics of Dirac fermions coupled to a scalar (inflaton) field at next-to-next-to-leading order in a coupling expansion of the 2PI effective action. Besides the well-known parametric production of bosons and fermions and their back-reaction on the background inflaton field, this includes direct interactions between produced particles, which have been neglected in previous studies. We present preliminary numerical results in 3+1 dimensions which indicates that, for intermediate Yukawa couplings, the latter can dramatically affect the usual picture of preheating.

Affiliated with

Also associated with

No associations

Rating

Nonlinear dynamics of fermions during preheating 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 Nonlinear dynamics of fermions during preheating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonlinear dynamics of fermions during preheating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1864982