Reversible state transfer between light and a single trapped atom

Abstract

We demonstrate the reversible mapping of a coherent state of light with mean photon number n-bar ~= 1.1 to and from the hyperfine states of an atom trapped within the mode of a high finesse optical cavity. The coherence of the basic processes is verified by mapping the atomic state back onto a field state in a way that depends on the phase of the original coherent state. Our experiment represents an important step towards the realization of cavity QED-based quantum networks, wherein coherent transfer of quantum states enables the distribution of quantum information across the network.

5 pages, 5 figures

References in corpus (1)

• Cooling to the Ground State of Axial Motion for One Atom Strongly Coupled to an Optical Cavity

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