Berry phase in entangled systems: a proposed experiment with single neutrons

Details Berry phase in entangled systems: a proposed experiment with single neutrons Berry phase in entangled systems: a proposed experiment with single neutrons

2003-09-10

arxiv.org/abs/quant-ph/0309089v2

Phys.Rev.A69:032112,2004

Physics

Quantum Physics

10 pages, 6 figures, Introduction extended, References added

Scientific paper

10.1103/PhysRevA.69.032112

The influence of the geometric phase, in particular the Berry phase, on an entangled spin-1/2 system is studied. We discuss in detail the case, where the geometric phase is generated only by one part of the Hilbert space. We are able to cancel the effects of the dynamical phase by using the ``spin-echo'' method. We analyze how the Berry phase affects the Bell angles and the maximal violation of a Bell inequality. Furthermore we suggest an experimental realization of our setup within neutron interferometry.

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