Entanglement Effect on Off-diagonal Geometric Phase
Quantum Physics
2009-11-11 v2
Abstract
The effect of entanglement on off-diagonal geometric phases is investigated in the paper. Two spin-1/2 particles in magnetic fields along the direction are taken as an example. Three parameters (the purity of state , the mixing angle and the relative phase ) are chosen to characterize the initial states. The nodal points at which the usual geometric phases disappear are calculated and illustrated as a function of the three parameters.
Cite
@article{arxiv.quant-ph/0506247,
title = {Entanglement Effect on Off-diagonal Geometric Phase},
author = {H. T. Cui and L. C. Wang and X. X. Yi},
journal= {arXiv preprint arXiv:quant-ph/0506247},
year = {2009}
}
Comments
final version; appearing in Europhys. Lett. 74, 757(2006)