Solitons and entanglement in the double sine-Gordon model
Quantum Physics
2015-06-19 v2
Abstract
The bipartite ground state entanglement in a finite linear harmonic chain of particles is numerically investigated. The particles are subjected to an external on-site periodic potential belonging to a family parametrized by the unit interval encompassing the sine-Gordon potential at both ends of the interval. Strong correspondences between the soliton entanglement entropy and the kink energy distribution profile as functions of the sub-chain length are found.
Keywords
Cite
@article{arxiv.1405.7830,
title = {Solitons and entanglement in the double sine-Gordon model},
author = {A. Alonso Izquierdo and J. Mateos Guilarte and N. G. de Almeida},
journal= {arXiv preprint arXiv:1405.7830},
year = {2015}
}
Comments
11 pages, 28 figures. This version improves the previous one