演讲人： Gu Zhengcheng University of California,Santa Barbara
时间： 2011-07-21 15:00-2011-07-21 16:00
地点：FIT 1-222
内容：
It has been well-known that topological phenomena with fractional excitations, i.e., the fractional quantum Hall effect (FQHE) will emerge when electrons move in Landau levels. In this talk, I will show FQHE can emergy even in the absence of Landau levels in interacting fermion models and boson models. The non-interacting part of our Hamiltonian contains topologically nontrivial flat band.
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