论文标题
用交叉凯尔非线性对纠缠的W状态的一步直接测量
One-step direct measurement of the entangled W states with cross-Kerr nonlinearity
论文作者
论文摘要
我们提出了一种直接用交叉凯尔非线性培养基直接测量纠缠的W状态的方案。该方案可以在一个步骤中测量三光子，四光子甚至N-Photon W状态。在该方案中，仅使用PBS和跨凯尔非线性培养基，这对于实验是可行的。我们描述了三个态W个状态测量过程，并将其扩展到四个光子和n-photon W状态。
We propose a scheme to directly measure the entangled W states with cross-Kerr nonlinearity mediums. This scheme can measure three-photon, four-photon, and even N-photon W states in one step. Only PBSs and cross-Kerr nonlinearity mediums are used in this scheme, which is feasible for experiments. We describe the three-photon W states measurement process and extend it to four-photon and N-photon W states.
