Graphene-like physics in optical lattices
Graphene-like physics in optical lattices
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DOI：
10.1088/1674-1056/22/11/116106
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发表时间：
2013-11
影响因子：
1.7
通讯作者：
F. Mei;Dan-Wei Zhang;Shi-Liang Zhu
中科院分区：
文献类型：
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作者：
F. Mei;Dan-Wei Zhang;Shi-Liang Zhu
在过去的几年里，石墨烯在凝聚态物理学中引起了极大的关注。石墨烯最有趣的特征是它的低能激发是相对论狄拉克费米子。这一特征是石墨烯类物理中许多拓扑性质的起源。另一方面，捕获在光学晶格中的超冷量子气体已经成为凝聚态物理量子模拟的独特环境。在这里，我们主要回顾了我们最近在蜂窝或正方形光学晶格中捕获超冷原子的类石墨烯物理的量子模拟工作，包括在有和没有朗道能级的情况下对狄拉克费米子和量子霍尔效应的模拟。我们还介绍了相关的实验进展。
Graphene has attracted enormous attention over the past years in condensed matter physics. The most interesting feature of graphene is that its low-energy excitations are relativistic Dirac fermions. Such feature is the origin of many topological properties in graphene-like physics. On the other hand, ultracold quantum gas trapped in an optical lattice has become a unique setting for quantum simulation of condensed matter physics. Here, we mainly review our recent work on quantum simulation of graphene-like physics with ultracold atoms trapped in a honeycomb or square optical lattice, including the simulation of Dirac fermions and quantum Hall effect with and without Landau levels. We also present the related experimental advances.