Renormalization group study of superconductivity and intervalley coherence in the rhombohedral trilayer graphene
ORAL
Abstract
Recent experiments on rhombohedral trilayer graphene (RTG) observe the superconductivity and isospin symmetry breaking. In this work, we study the fate of the fermion interactions which originates from the microscopic model of this RTG system using the renormalization group (RG) method. We build the hotspot model based on the fermi surface nesting and the proximity to the van Hove singularities. We derived the renormalization group equations for the momentum-dependent interaction vertices, and we investigated the effect of Hund's coupling and the Berry curvature in the RG flow.
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Presenters
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Dachuan Lu
University of California, San Diego
Authors
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Dachuan Lu
University of California, San Diego
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Taige Wang
University of California, Berkeley
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Shubhayu Chatterjee
UC Berkeley, University of California, Berkeley
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Michael P Zaletel
University of California, Berkeley, University of California at Berkeley
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Yizhuang You
University of California, San Diego, Harvard University