The competition between low-temperature kinks and magnons at the vicinity of the deconfinement transition point in 1D easy-axis XXZ ferromagnet

Abstract

Studying the ordered phases and quantum supercritical low-temperature regime at the vicinity of the deconfinement transition point in 1D easy-axis XXZ ferromagnet, we suggest their interpretations according to the corresponding dominant lowest-energy excitations. We show, that the two ordered phases are governed by magnons, while the quantum supercritical regime is governed by kinks. Within this framework the Ising model is treated in detail.

arXiv comment16 pages 3 figures