Entanglement dynamics in the Lipkin-Meshkov-Glick model
Other Condensed Matter
2010-05-11 v2 Quantum Physics
Abstract
The dynamics of the one-tangle and the concurrence is analyzed in the Lipkin-Meshkov-Glick model which describes many physical systems such as the two-mode Bose-Einstein condensates. We consider two different initial states which are physically relevant and show that their entanglement dynamics are very different. A semiclassical analysis is used to compute the one-tangle which measures the entanglement of one spin with all the others, whereas the frozen-spin approximation allows us to compute the concurrence using its mapping onto the spin squeezing parameter.
Cite
@article{arxiv.cond-mat/0406481,
title = {Entanglement dynamics in the Lipkin-Meshkov-Glick model},
author = {J. Vidal and G. Palacios and Cl. Aslangul},
journal= {arXiv preprint arXiv:cond-mat/0406481},
year = {2010}
}
Comments
11 pages, 11 EPS figures, published version