Domain wall dynamics in expanding spaces

Details Domain wall dynamics in expanding spaces Domain wall dynamics in expanding spaces

2005-11-30

arxiv.org/abs/nlin/0511064v2

Phys. Rev. E 73, 056603 (2006)

Nonlinear Sciences

Pattern Formation and Solitons

LaTeX, 18 pages, 2 figures, improved version to appear in Phys Rev E

Scientific paper

10.1103/PhysRevE.73.056603

We study the effects on the dynamics of kinks due to expansions and contractions of the space. We show that the propagation velocity of the kink can be adiabatically tuned through slow expansions/contractions, while its width is given as a function of the velocity. We also analyze the case of fast expansions/contractions, where we are no longer on the adiabatic regime. In this case the kink moves more slowly after an expansion-contraction cycle as a consequence of loss of energy through radiation. All these effects are numerically studied in the nonlinear Klein-Gordon equations (both for the sine-Gordon and for the phi^4 potential), and they are also studied within the framework of the collective coordinate evolution equations for the width and the center of mass of the kink. These collective coordinate evolution equations are obtained with a procedure that allows us to consider even the case of large expansions/contractions.

Affiliated with

Also associated with

No associations

Rating

Domain wall dynamics in expanding spaces 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 Domain wall dynamics in expanding spaces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Domain wall dynamics in expanding spaces will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-430190