论文标题
纠缠的连续性方程
Continuity equations for entanglement
论文作者
论文摘要
我们引入了复杂的纯度密度及其对连续变量系统纯状态的相关电流。该方案是通过类比与概率密度和概率电流概念构建的。利用以这种方式获得的形式连续性方程式，我们可以引入纠缠亚群。我们建议将这种亚动力学的维度用作纠缠复杂性的潜在度量。该方案还提供了有关量子相关性全球和局部方面之间关系的见解。
We introduce a complex purity density and its associated current for pure states of continuous variable systems. The scheme is constructed by analogy with the notions of probability density and probability current. Taking advantage of the formal continuity equations obtained this way we can introduce an entanglement subdynamics. We suggest the use of the dimensionality of this subdynamics as a potential measure of the complexity of entanglement. The scheme also provides insights into the relation between the global and local aspects of quantum correlations.
