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Entanglement Effect on Off-diagonal Geometric Phase

H. T. Cui·L. C. Wang·X. X. Yi
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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 $y$ direction are taken as an example. Three parameters (the purity of state $r$, the mixing angle $θ$ and the relative phase $β$) 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.

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H. T. Cui, L. C. Wang, X. X. Yi. 2006-06-15. Entanglement Effect on Off-diagonal Geometric Phase. https://doi.org/10.1209/epl%2Fi2005-10587-x

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