Spin entanglement loss by local correlation transfer to the momentum

Details Spin entanglement loss by local correlation transfer to the momentum Spin entanglement loss by local correlation transfer to the momentum

2006-03-24

arxiv.org/abs/quant-ph/0603225v2

Phys. Rev. A 73, 052325 (2006)

Physics

Quantum Physics

7 pages and 7 figures. Accepted in PRA

Scientific paper

10.1103/PhysRevA.73.052325

We show the decrease of spin-spin entanglement between two s=1/2 fermions or two photons due to local transfer of correlations from the spin to the momentum degree of freedom of one of the two particles. We explicitly show how this phenomenon operates in the case where one of the two fermions (photons) passes through a local homogeneous magnetic field (optically-active medium), losing its spin correlations with the other particle.

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