Reversible state transfer between light and a single trapped atom

被引:250
作者
Boozer, A. D. [1 ]
Boca, A. [1 ]
Miller, R. [1 ]
Northup, T. E. [1 ]
Kimble, H. J. [1 ]
机构
[1] CALTECH, Norman Bridge Lab Phys 12 33, Pasadena, CA 91125 USA
关键词
D O I
10.1103/PhysRevLett.98.193601
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We demonstrate the reversible mapping of a coherent state of light with a mean photon number (n) over bar similar or 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.
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页数:4
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