Bell test for the free motion of material particles

Details Bell test for the free motion of material particles Bell test for the free motion of material particles

2008-07-09

arxiv.org/abs/0807.1448v2

Phys. Rev. Lett. 101, 260503 (2008)

Physics

Quantum Physics

4 pages, 1 figure; corresponds to published version

Scientific paper

10.1103/PhysRevLett.101.260503

We present a scheme to establish non-classical correlations in the motion of two macroscopically separated massive particles without resorting to entanglement in their internal degrees of freedom. It is based on the dissociation of a diatomic molecule with two temporally separated Feshbach pulses generating a motional state of two counter-propagating atoms that is capable of violating a Bell inequality by means of correlated single particle interferometry. We evaluate the influence of dispersion on the Bell correlation, showing it to be important but manageable in a proposed experimental setup. The latter employs a molecular BEC of fermionic Lithium atoms, uses laser-guided atom interferometry, and seems to be within the reach of present-day technology.

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