论文标题
在几何方法下量化量子状态的纠缠
Quantifying the entanglement of quantum states under the geometry method
论文作者
论文摘要
量化纠缠是量子信息理论中的一个重要问题。在这里，我们根据两种方法（修改度措施和两分状态的扩展措施）来考虑通过痕量规范进行的纠缠度量。我们介绍了纯状态的分析公式，以修改度的度量和两量量系统的混合状态进行扩展度量。我们还将修改的度量从两分国家概括为三方状态。
Quantifying entanglement is an important issue in quantum information theory. Here we consider the entanglement measures through the trace norm in terms of two methods, the modified measure and the extended measure for bipartite states. We present the analytical formula for the pure states in terms of the modified measure and the mixed states of two-qubit systems for the extended measure. We also generalize the modified measure from bipartite states to tripartite states.
