Quantum-information processing with a single photon by an input-output process with respect to low-Q cavities
Quantum-information processing with a single photon by an input-output process with respect to low-Q cavities
复制标题
通过低 Q 腔的输入输出过程进行单光子量子信息处理
DOI：
10.1103/physreva.79.032303
复制
发表时间：
2009-03-01
影响因子：
2.9
通讯作者：
Oh, C. H.
中科院分区：
文献类型：
--
作者：
An, Jun-Hong;Feng, M.;Oh, C. H.
腔量子电动力学和光子都是量子信息处理的有前途的候选者。基于空腔的输入-输出过程，我们考虑了两个候选光子的组合，单个光子通过空间分离的空腔来纠缠原子量子位。我们提出了一个关于约束单原子的低q腔的输入-输出过程的一般表达式，它可以在很宽的参数范围内工作。针对低q空腔情况，我们提出了一些不同于高q空腔和强耦合情况的单光子法拉第旋转量子信息处理方案。
Both cavity quantum electrodynamics and photons are promising candidates for quantum information processing. We consider a combination of both candidates with a single photon going through spatially separate cavities to entangle the atomic qubits, based on the input-output process of the cavities. We present a general expression for the input-output process regarding the low-Q cavity confining a single atom, which works in a wide range of parameters. Focusing on low-Q cavity case, we propose some schemes for quantum information processing with Faraday rotation using single photons, which is much different from the high-Q cavity and strong-coupling cases.