Observation of a Superradiant Mott Insulator in the Dicke-Hubbard Model
Observation of a Superradiant Mott Insulator in the Dicke-Hubbard Model
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DOI：
10.1103/physrevlett.115.230403
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发表时间：
2015-12-04
影响因子：
8.6
通讯作者：
Hemmerich, A.
中科院分区：
文献类型：
--
作者：
Klinder, J.;Kessler, H.;Hemmerich, A.
众所周知，玻色子Hubbard模型具有Mott绝缘体相.同样，已知迪凯模型表现出自组织超辐射相。通过在高精细光学腔内实现光学晶格，两个模型被合并，从而产生具有腔介导的无限程相互作用的扩展的Hubbard模型。除了一个正常的超流相，两个超辐射相被发现，其中一个相干，因此超流和非相干莫特绝缘。
It is well known that the bosonic Hubbard model possesses a Mott insulator phase. Likewise, it is known that the Dicke model exhibits a self-organized superradiant phase. By implementing an optical lattice inside of a high-finesse optical cavity, both models are merged such that an extended Hubbard model with cavity-mediated infinite range interactions arises. In addition to a normal superfluid phase, two superradiant phases are found, one of them coherent and hence superfluid and one incoherent Mott insulating.