Reversible State Transfer between Light and a Single Trapped Atom

作者：A. David. Boozer, Andreea Boca, Ryan Miller, Tracy E. Northup, Harry J. Kimble · 发表于：Physical Review Letters · 年份：2007 · DOI：10.1103/physrevlett.98.193601 · 被引用次数：301 · 研究领域：Quantum Information and Cryptography、Quantum optics and atomic interactions、Quantum Mechanics and Applications

We demonstrate the reversible mapping of a coherent state of light with a mean photon number (-)n approximately equal to 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.