论文标题
量子场操作员如何编码纠缠？
How can quantum field operators encode entanglement?
论文作者
论文摘要
我们提出了为量子场操作员构建Deutsch-Hayden代表的技术，并将其应用于固定在良好分离的空间区域中的相同非依赖性的Spin-1/2 Fermions的纠缠状态。使用这些纠缠的现场运算符，我们构建了测量局部空间区域中自旋的运算符，并验证了无信息的Deutsch-Hayden状态中自旋测量算子的矩阵元素产生的两者纠缠和未缠绕粒子之间的预期相关性。纠缠的Deutsch-Hayden-Pressentation Field Operators提供了对纠缠系统的明显可分离描述。
We present techniques to construct the Deutsch-Hayden representation for quantum field operators and apply them to an entangled state of identical nonrelativistic spin-1/2 fermions localized in well-separated spatial regions. Using these entangled field operators we construct operators measuring spin in localized spatial regions, and verify that matrix elements of the spin-measurement operators in the information-free Deutsch-Hayden state yield the expected correlations between pairs of both entangled and unentangled particles. The entangled Deutsch-Hayden-representation field operators furnish an explicitly separable description of the entangled system.
