Programmable atom-photon quantum interface
Abstract
We present the implementation of a programmable atom-photon quantum interface, employing a single trapped 40Ca+ ion and single photons. Depending on its mode of operation, the interface serves as a bi-directional atom-photon quantum-state converter, as a source of entangled atom-photon states, or as a quantum frequency converter of single photons. The interface lends itself particularly to interfacing ions with single or entangled photons in hybrid quantum networks.
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