Diffraction of entangled particles by light gratings
Quantum Physics
2015-06-24 v1
Abstract
We analyze the diffraction regime of the Kapitza-Dirac effect for particles entangled in momentum. The detection patterns show two-particle interferences. In the single-mode case we identify a discontinuity in the set of joint detection probabilities, associated with the disconnected character of the space of non-separable states. For Gaussian multi-mode states we derive the diffraction patterns, providing an example of the dependence of the light-matter interaction on entanglement. When the particles are identical, we can explore the relation between exchange and entanglement effects. We find a complementary behavior between overlapping and Schmidt's number. In particular, symmetric entanglement can cancel the exchange effects.
Cite
@article{arxiv.1503.02409,
title = {Diffraction of entangled particles by light gratings},
author = {Pedro Sancho},
journal= {arXiv preprint arXiv:1503.02409},
year = {2015}
}