Physics Letters B | |
Information-entropic measure of energy-degenerate kinks in two-field models | |
M. Gleiser1  R.A.C. Correa2  A. de Souza Dutra2  | |
[1] Center for Cosmic Origins and Department of Physics and Astronomy, Dartmouth College, Hanover, NH 03755, USA;UNESP – Campus de Guaratinguetá – DFQ, Av. Dr. Ariberto Pereira Cunha, 333 C.P. 205, 12516-410 Guaratinguetá, SP, Brazil; | |
关键词: Entropy; Nonlinear; Bloch walls; Kinks; Lumps; | |
DOI : 10.1016/j.physletb.2014.09.002 | |
来源: DOAJ |
【 摘 要 】
We investigate the existence and properties of kink-like solitons in a class of models with two interacting scalar fields. In particular, we focus on models that display both double and single-kink solutions, treatable analytically using the Bogomol'nyi–Prasad–Sommerfield bound (BPS). Such models are of interest in applications that include Skyrmions and various superstring-motivated theories. Exploring a region of parameter space where the energy for very different spatially-bound configurations is degenerate, we show that a newly-proposed momentum–space entropic measure called Configurational Entropy (CE) can distinguish between such energy-degenerate spatial profiles. This information-theoretic measure of spatial complexity provides a complementary perspective to situations where strictly energy-based arguments are inconclusive.
【 授权许可】
Unknown