论文标题
通过弱跨kerr非线性对最大超牢固状态的完整分析
Complete analysis of the maximally hyperentangled state via the weak cross-Kerr nonlinearity
论文作者
论文摘要
我们提出了一种简单的方法，可以在极化跨kerr非线性辅助的极化和空间模式的自由度中进行完全分析。我们的方法不仅可以用于两光孔超置钟状态分析和三光子超牢房的Greenberger-Horne-Zeilinger（GHz）态分析，而且还适用于N-Photon超座性GHz状态分析。在我们的协议中，通过非线性相互作用读取了超脑的位信息，并通过使用线性光学元件和单个光子检测器获得相位信息。当前技术可以实现这种方法，并且对于实用的高容量量子通信方案将很有用。
We present a simple method for the complete analysis of maximally hyperentangled state in polarization and spatial-mode degrees of freedom assisted by the weak cross-Kerr nonlinearity. Our method not only can be used for two-photon hyperentangled Bell state analysis and three-photon hyperentangled Greenberger-Horne-Zeilinger (GHZ) state analysis, but also is suitable for N-photon hyperentangled GHZ state analysis. In our protocols, the bit information of hyperentanglement is read out via the nonlinear interaction, and the phase information is obtained by using linear optical element and single photon detector. This approach is achievable with the current technology, and will be useful for the practical high-capacity quantum communication schemes.
