Entanglement dynamics in the Lipkin-Meshkov-Glick model
- 3 December 2004
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 70 (6), 062304
- https://doi.org/10.1103/physreva.70.062304
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.Keywords
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