Reversible state transfer between light and a single trapped atom
Reversible state transfer between light and a single trapped atom
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DOI：
10.1103/physrevlett.98.193601
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发表时间：
2007-05-11
影响因子：
8.6
通讯作者：
Kimble, H. J.
中科院分区：
文献类型：
--
作者：
Boozer, A. D.;Boca, A.;Kimble, H. J.
我们展示了一个平均光子数(n)大于等于1.1的光的相干态与一个被困在高精细光学腔模式中的原子的超精细态之间的可逆映射。基本过程的相干性是通过将原子态映射回场态来验证的，这种映射依赖于原始相干态的相位。我们的实验代表了实现基于腔qed的量子网络的重要一步，其中量子态的相干转移使量子信息能够在网络中分布。
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.