Topology-Bounded Superfluid Weight in Twisted Bilayer Graphene.
作者： Fang Xie , Zhida Song , Biao Lian , B. Andrei Bernevig
DOI: 10.1103/PHYSREVLETT.124.167002
关键词: Density of states 、 Winding number 、 Superfluidity 、 Bilayer graphene 、 Pairing 、 Wilson loop 、 Topology 、 Physics 、 Superconductivity 、 Topological index
摘要: While regular flat bands are good for enhancing the density of states and hence the gap, they are detrimental to the superfluid weight. We show that the predicted nontrivial topology …
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