围圈冷却：光晶格中实现超低熵的途径
Cooling by corralling: a route to ultra-low entropies in optical lattices
摘要：
冷原子实验的一个主要动机是寻找量子基态，如反铁磁体和d波超流体。这项任务的主要障碍是冷却到足够低的温度的困难。我们提出了一种方法来实现非常低的温度和熵（$\sim 0.03k_B$每个粒子），通过捕获费米子在畜栏形成的另一种原子。费米系统可以被用作散热器，或者它可以被自动地演化成其他所需的状态。特别是，我们建议使用这种技术产生反铁磁性的方法。
英文摘要：
A major motivation for cold atom experiments is the search for quantum ground states such as antiferromagnets and d-wave superfluids. The primary obstacle to this task is the difficulty of cooling to sufficiently low temperatures. We propose a way to achieve very low temperatures and entropies ($\sim 0.03k_B$ per particle) by trapping fermions in a corral formed from another species of atoms. The Fermi system can then be used as a heat sink, or it can be adiabatically evolved into other desired states. In particular, we suggest methods for generating antiferromagnetism using this technique.
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