Teleportation of an atomic ensemble quantum state

Phys Rev Lett. 2005 Feb 11;94(5):050502. doi: 10.1103/PhysRevLett.94.050502. Epub 2005 Feb 7.

Abstract

We propose a protocol to achieve high fidelity quantum state teleportation of a macroscopic atomic ensemble using a pair of quantum-correlated atomic ensembles. We show how to prepare this pair of ensembles using quasiperfect quantum state transfer processes between light and atoms. Our protocol relies on optical joint measurements of the atomic ensemble states and magnetic feedback reconstruction.