Relation between concurrence and Berry phase of an entangled state of two spin 1/2 particles
arXiv:quant-ph/0602089 · doi:10.1209/epl/i2005-10478-2
Abstract
We have studied here the influence of the Berry phase generated due to a cyclic evolution of an entangled state of two spin 1/2 particles. It is shown that the measure of formation of entanglement is related to the cyclic geometric phase of the individual spins. \\
6 pages. Accepted in Europhys. Letters (likely to be published in vol 73, pp1-6 (2006))