三个单囚禁大质量超冷费米子纠缠量子态的三阶动量相关干涉图
Third-order momentum correlation interferometry maps for entangled quantal states of three singly trapped massive ultracold fermions
摘要：
本文给出了三个超冷费米子原子在线性三阱光阱中的飞行时间谱的高阶动量关联函数的解析表达式，它们对应于三重纠缠的W-态和Greenberger-Horne-Zeilinger-型（GHZ）态.这里介绍的方法对比，并超越了基于标准威克的因式分解方案，它可以确定三阶和二阶自旋分辨和自旋未分辨的动量相关性，旨在与被困的大质量粒子类比的物质波干涉调查，并有可能扩大范围，最近的三光子量子光学干涉。
英文摘要：
Analytic higher-order momentum correlation functions associated with the time-of-flight spectroscopy of three ultracold fermionic atoms singly-confined in a linear three-well optical trap are presented, corresponding to the W- and Greenberger-Horne-Zeilinger-type (GHZ) states that belong to characteristic classes of tripartite entanglement and represent the strong-interaction regime captured by a three-site Heisenberg Hamiltonian. The methodology introduced here contrasts with and goes beyond that based on the standard Wick's factorization scheme; it enables determination of both third-order and second-order spin-resolved and spin-unresolved momentum correlations, aiming at matter-wave interference investigations with trapped massive particles in analogy with, and having the potential for expanding the scope of, recent three-photon quantum-optics interferometry.
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