| Issue |
Europhys. Lett.
Volume 74, Number 5, June 2006
|
|
|---|---|---|
| Page(s) | 757 - 763 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2005-10587-x | |
| Published online | 05 May 2006 | |
Effects of entanglement on off-diagonal geometric phases
Department of Physics, Dalian University of Technology - Dalian 116024, PRC
Received:
13
July
2005
Accepted:
10
April
2006
The effect of entanglement on off-diagonal geometric phases is
investigated in the paper. Two spin-(
) 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.
PACS: 03.65.Vf – Phases: geometric; dynamic or topological / 03.65.Ud – Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.)
© EDP Sciences, 2006
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