Vortex entanglement in Bose-Einstein condensates coupled to Laguerre-Gauss beams

Details Vortex entanglement in Bose-Einstein condensates coupled to Laguerre-Gauss beams Vortex entanglement in Bose-Einstein condensates coupled to Laguerre-Gauss beams

2009-12-07

arxiv.org/abs/0912.1305v2

Phys. Rev. A 81, 053625 (2010)

Physics

Condensed Matter

Quantum Gases

10 pages, 7 figures, RevTex4

Scientific paper

We study the establishment of vortex entanglement in remote and weakly interacting Bose Einstein condensates. We consider a two-mode photonic resource entangled in its orbital angular momentum (OAM) degree of freedom and, by exploiting the process of light-to-BEC OAM transfer, demonstrate that such entanglement can be efficiently passed to the matter-like systems. Our proposal thus represents a building block for novel low-dissipation and long-memory communication channels based on OAM. We discuss issues of practical realizability, stressing the feasibility of our scheme and present an operative technique for the indirect inference of the set vortex entanglement.

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