Establishing Einstein-Poldosky-Rosen Channels between Nanomechanics and Atomic Ensembles

Author(s): K. Hammerer, M. Aspelmeyer, E. S. Polzik, P. Zoller

Journal: Physical Review Letters

Volume: 102

Page(s): 020501

Year: 2009

DOI Number: 10.1103/PhysRevLett.102.020501

Link: Link to publication


We suggest interfacing 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 nondemolition 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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