论文标题

费米文化超流量:从冷原子到中子星星

Fermionic Superfluidity: From Cold Atoms to Neutron Stars

论文作者

Lopez, Annette, Kelly, Patrick, Dauer, Kaelyn, Vitali, Ettore

论文摘要

从不耗散能量的流量到旋转容器内的涡流形成,物质的超流体状态已被证明是一种非常有趣的物理现象。在这里,我们介绍了费米子系统中超流体背后的关键机制,并将我们的理解应用于宇宙中深处的外来系统 - 中子恒星中发现的超流体。超流体的定义特征是配对差距,中子星的冷却曲线依赖于此。中子恒星周围的极端条件使我们无法直接探测超级流体的特性,但是,我们可以通过在实验室中制备并在计算机上模拟的冷原子来实验意识到与内部相似的条件。实验者越来越熟练地在实验室中实现模仿中子星和超导体的行为的冷原子系统。反过来,计算物理学家正在利用超级计算机的力量以前所未有的精度模拟相互作用的原子系统。本文旨在为基础概念提供教学介绍,以及使用冷原子作为一种工具的可能性,该工具可以帮助我们迈向理解外来物理系统的重要步伐。

From flow without dissipation of energy to the formation of vortices when placed within a rotating container, the superfluid state of matter has proven to be a very interesting physical phenomenon. Here we present the key mechanisms behind superfluidity in fermionic systems and apply our understanding to an exotic system found deep within the universe -- the superfluid found deep within a neutron star. A defining trait of a superfluid is the pairing gap, which the cooling curves of neutron stars depend on. The extreme conditions surrounding a neutron star prevent us from directly probing the superfluid's properties, however, we can experimentally realize conditions resembling the interior through the use of cold atoms prepared in a laboratory and simulated on a computer. Experimentalists are becoming increasingly adept at realizing cold atomic systems in the lab that mimic the behavior of neutron stars and superconductors. In their turn, computational physicists are leveraging the power of supercomputers to simulate interacting atomic systems with unprecedented accuracy. This paper is intended to provide a pedagogical introduction to the underlying concepts and the possibility of using cold atoms as a tool that can help us make significant strides towards understanding exotic physical systems.

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