论文标题
痕量不平等的同意和负面性的下限
Lower bounds on concurrence and negativity from a trace inequality
论文作者
论文摘要
对于两分量子状态，我们获得了两种重要的纠缠措施，同意和消极的范围，研究了投影仪在希尔伯特领域某些子空间的期望值的不平等现象。讨论了一些应用，包括在国家的各种扰动下对纠缠的稳定性分析。
For bipartite quantum states we obtain lower bounds on two important entanglement measures, concurrence and negativity, studying the inequalities for the expectation value of a projector on some subspace of the Hilbert space. Several applications, including analysis of stability of entanglement under various perturbations of a state, are discussed.
