Kinks in the discrete sine-Gordon model with Kac-Baker long-range interactions

Details Kinks in the discrete sine-Gordon model with Kac-Baker long-range interactions Kinks in the discrete sine-Gordon model with Kac-Baker long-range interactions

1999-09-28

arxiv.org/abs/cond-mat/9909404v1

Phys. Rev. E 61, 4454-4461 (2000).

Physics

Condensed Matter

Soft Condensed Matter

11 pages (LaTeX) and 14 figures (Postscript); submitted to Phys. Rev. E

Scientific paper

10.1103/PhysRevE.61.4454

We study effects of Kac-Baker long-range dispersive interaction (LRI) between particles on kink properties in the discrete sine-Gordon model. We show that the kink width increases indefinitely as the range of LRI grows only in the case of strong interparticle coupling. On the contrary, the kink becomes intrinsically localized if the coupling is under some critical value. Correspondingly, the Peierls-Nabarro barrier vanishes as the range of LRI increases for supercritical values of the coupling but remains finite for subcritical values. We demonstrate that LRI essentially transforms the internal dynamics of the kinks, specifically creating their internal localized and quasilocalized modes. We also show that moving kinks radiate plane waves due to break of the Lorentz invariance by LRI.

Affiliated with

Also associated with

No associations

Rating

Kinks in the discrete sine-Gordon model with Kac-Baker long-range interactions 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 Kinks in the discrete sine-Gordon model with Kac-Baker long-range interactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Kinks in the discrete sine-Gordon model with Kac-Baker long-range interactions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-423670