...
首页> 外文期刊>Physical Review X >Band and Correlated Insulators of Cold Fermions in a Mesoscopic Lattice
【24h】

Band and Correlated Insulators of Cold Fermions in a Mesoscopic Lattice

机译:浅层镜片中的寒冷杯状晶体的带和相关绝缘子

获取原文
           

摘要

We investigate the transport properties of neutral, fermionic atoms passing through a one-dimensional quantum wire containing a mesoscopic lattice. The lattice is realized by projecting individually controlled, thin optical barriers on top of a ballistic conductor. Building an increasingly longer lattice, one site after another, we observe and characterize the emergence of a band insulating phase, demonstrating control over quantum-coherent transport. We explore the influence of atom-atom interactions and show that the insulating state persists as contact interactions are tuned from moderately to strongly attractive. Using bosonization and classical Monte?Carlo simulations, we analyze such a model of interacting fermions and find good qualitative agreement with the data. The robustness of the insulating state supports the existence of a Luther-Emery liquid in the one-dimensional wire. Our work realizes a tunable, site-controlled lattice Fermi gas strongly coupled to reservoirs, which is an ideal test bed for nonequilibrium many-body physics.
机译:我们研究了通过含有介面镜片的一维量子丝的中性,铁饼原子的运输特性。通过在弹道导体顶部突出单独控制的薄光学屏障来实现晶格。建立一个越来越长的格子,一个又一次的网站,我们观察并表征带绝缘阶段的出现,证明了对量子相干运输的控制。我们探讨了原子 - 原子交互的影响,并表明绝缘状态持续存在,因为接触相互作用从中度调整到强烈吸引力。使用舞蹈和古典蒙特?Carlo仿真,我们分析了这种互动污垢模型,并找到了与数据的良好定性协议。绝缘状态的稳健性支持一维线中的浮雕液体的存在。我们的工作实现了一种可调节的现场控制的格费米体,其强烈地连接到储层,这是一种理想的测试床,用于非QuibiRibium的许多身体物理学。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号