English

Bell test for the free motion of material particles

Quantum Physics 2009-01-13 v2 Atomic Physics

Abstract

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.

Keywords

Cite

@article{arxiv.0807.1448,
  title  = {Bell test for the free motion of material particles},
  author = {Clemens Gneiting and Klaus Hornberger},
  journal= {arXiv preprint arXiv:0807.1448},
  year   = {2009}
}

Comments

4 pages, 1 figure; corresponds to published version