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Title: Testing leggett's inequality using aharonov-casher effect
Authors: Su, H.-Y.
Chen, J.-L. 
Wu, C. 
Deng, D.-L.
Oh, C.H. 
Issue Date: 2013
Source: Su, H.-Y., Chen, J.-L., Wu, C., Deng, D.-L., Oh, C.H. (2013). Testing leggett's inequality using aharonov-casher effect. Scientific Reports 3 : -. ScholarBank@NUS Repository.
Abstract: Bell's inequality is established based on local realism. The violation of Bell's inequality by quantum mechanics implies either locality or realism or both are untenable. Leggett's inequality is derived based on nonlocal realism. The violation of Leggett's inequality implies that quantum mechanics is neither local realistic nor nonlocal realistic. The incompatibility of nonlocal realism and quantum mechanics has been currently confirmed by photon experiments. In our work, we propose to test Leggett's inequality using the Aharonov-Casher effect. In our scheme, four entangled particles emitted from two sources manifest a two-qubit-typed correlation that may result in the violation of the Leggett inequality, while satisfying the no-signaling condition for spacelike separation. Our scheme is tolerant to some local inaccuracies due to the topological nature of the Aharonov-Casher phase. The experimental implementation of our scheme can be possibly realized by a calcium atomic polarization interferometer experiment.
Source Title: Scientific Reports
ISSN: 20452322
DOI: 10.1038/srep02492
Appears in Collections:Staff Publications

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