Arbeitsgruppe Theoretische Quantenoptik, Institut für Physik, Universität Rostock, D-18051 Rostock, Germany.
Phys Rev Lett. 2013 Sep 13;111(11):110503. doi: 10.1103/PhysRevLett.111.110503.
We derive a set of algebraic equations, the so-called multipartite separability eigenvalue equations. Based on their solutions, we introduce a universal method for the construction of multipartite entanglement witnesses. We witness multipartite entanglement of 10(3) coupled quantum oscillators, by solving our basic equations analytically. This clearly demonstrates the feasibility of our method for studying ultrahigh orders of multipartite entanglement in complex quantum systems.
我们推导出了一组代数方程，即所谓的多部分可分离特征值方程。基于这些方程的解，我们引入了一种通用的多部分纠缠见证者的构造方法。我们通过解析地求解我们的基本方程，见证了 10(3)个耦合量子振荡器的多部分纠缠。这清楚地表明了我们的方法在研究复杂量子系统中超高阶多部分纠缠的可行性。
