Physics – Quantum Physics
Scientific paper
1998-04-02
Physics
Quantum Physics
Latex, 6 pages, no figures, submitted to Phys. Rev. A
Scientific paper
10.1103/PhysRevA.58.R1
We propose the Aharonov-Casher (AC) effect for four entangled spin-half particles carrying magnetic moments in the presence of impenetrable line charge. The four particle state undergoes AC phase shift in two causually disconnected region which can show up in the correlations between different spin states of distant particles. This correlation can violate Bell's inequality, thus displaying the non-locality for four particle entangled states in an objective way. Also, we have suggested how to control the AC phase shift locally at two distant locations to test Bell's inequality. We belive that although the single particle AC effect may not be non-local but the entangled state AC effect is a non-local one.
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