Phys. Rev. Lett. 98, 193601 (2007) [4 pages]Reversible State Transfer between Light and a Single Trapped Atom
We demonstrate the reversible mapping of a coherent state of light with a mean photon number n̅ ≃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 toward the realization of cavity QED-based quantum networks, wherein coherent transfer of quantum states enables the distribution of quantum information across the network. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.98.193601
DOI:
10.1103/PhysRevLett.98.193601
PACS:
42.50.Pq, 03.67.−a, 32.80.Pj
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