Huygens Laboratory, Leiden University, P.O. Box 9504, 2300 RA Leiden, The Netherlands.
Phys Rev Lett. 2010 Apr 23;104(16):160503. doi: 10.1103/PhysRevLett.104.160503.
We propose an interface between the spin of a photon and the spin of an electron confined in a quantum dot embedded in a microcavity operating in the weak-coupling regime. This interface, based on spin selective photon reflection from the cavity, can be used to construct a CNOT gate, a multiphoton entangler and a photonic Bell-state analyzer. Finally, we analyze experimental feasibility, concluding that the schemes can be implemented with current technology.
我们提出了一种在弱耦合条件下工作的、嵌入微腔中的量子点中电子的自旋与光子的自旋之间的接口。这种基于从腔中选择性反射的自旋光子的接口，可以用来构建 CNOT 门、多光子纠缠器和光子贝尔态分析仪。最后，我们分析了实验的可行性，得出结论认为这些方案可以用当前的技术来实现。
