Relaxation dynamics of a Fermi gas in an optical superlattice.
Relaxation dynamics of a Fermi gas in an optical superlattice.
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光学超晶格中费米气体的弛豫动力学。
DOI：
10.1103/physrevlett.113.170403
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发表时间：
2014
影响因子：
8.6
通讯作者：
Pertot D
中科院分区：
文献类型：
--
作者：
Pertot D
这封信包括对一维光学双阱超晶格势的快速和慢速淬灭后费米气体的时间演化的实验和理论研究。我们研究了连接双井中的局部隧道效应和趋向稳定状态（即与时间无关的状态）的全局动态。稳态下的局部可观测量类似于热平衡状态的可观测量，而全局特性表明强烈的非平衡情况。
This Letter comprises an experimental and theoretical investigation of the time evolution of a Fermi gas following fast and slow quenches of a one-dimensional optical double-well superlattice potential. We investigate both the local tunneling in the connected double wells and the global dynamics towards a steady state, i.e., a time-independent state. The local observables in the steady state resemble those of a thermal equilibrium state, whereas the global properties indicate a strong nonequilibrium situation.