巡游多粒子态中粒子间的纠缠
Entanglement between particle partitions in itinerant many-particle states
摘要：
我们回顾了巡游多粒子系统的“粒子分割纠缠”。这被定义为组成系统的两个粒子子集之间的纠缠。我们确定的通用功能和机制的粒子纠缠，是有效的整个类的巡回量子系统。我们制定了一般结构的粒子纠缠在多费米子基态，类似于“面积法”的更通常研究的空间区域之间的纠缠。首先通过考虑相对简单的巡游模型阐明了粒子纠缠的基本性质。然后，我们回顾粒子分割纠缠在量子态与更复杂的物理，如任意子模型和量子霍尔态。
英文摘要：
We review `particle partitioning entanglement' for itinerant many-particle systems. This is defined as the entanglement between two subsets of particles making up the system. We identify generic features and mechanisms of particle entanglement that are valid over whole classes of itinerant quantum systems. We formulate the general structure of particle entanglement in many-fermion ground states, analogous to the `area law' for the more usually studied entanglement between spatial regions. Basic properties of particle entanglement are first elucidated by considering relatively simple itinerant models. We then review particle-partitioning entanglement in quantum states with more intricate physics, such as anyonic models and quantum Hall states.
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