Establishing EPR-channels between Nanomechanics and Atomic Ensembles

Details Establishing EPR-channels between Nanomechanics and Atomic Ensembles Establishing EPR-channels between Nanomechanics and Atomic Ensembles

2008-04-18

arxiv.org/abs/0804.3005v4

PRL 102, 020501 (2009)

Physics

Quantum Physics

4 pages, 1 figure; accepted by PRL

Scientific paper

10.1103/PhysRevLett.102.020501

We suggest to interface nanomechanical systems via an optical quantum bus to atomic ensembles, for which means of high precision state preparation, manipulation and measurement are available. This allows in particular for a Quantum Non-Demolition Bell measurement, projecting the coupled system, atomic ensemble - nanomechanical resonator, into an entangled EPR-state. The entanglement is observable even for nanoresonators initially well above their ground states and can be utilized for teleportation of states from an atomic ensemble to the mechanical system.

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