Gapless fermionic systems as phase-space topological insulators: Nonperturbative results from anomalies
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DOI: 10.1103/physrevb.110.l121119
Abstract: We present a theory unifying the topological responses and anomalies of various gapless fermion systems exhibiting Fermi surfaces, including those with Berry phases, and nodal structures, which applies beyond non-interacting limit. As our key finding,… read more here.
Keywords: fermionic systems; systems phase; topological insulators; gapless fermionic ... See more keywords