The Fermi gerbe of Weyl semimetals

Carey, A; Thiang, GC

Thiang, GC (corresponding author), Peking Univ, Beijing Int Ctr Math Res, Beijing, Peoples R China.

LETTERS IN MATHEMATICAL PHYSICS, 2021; 111 (3):

Abstract

In the gap topology, the unbounded self-adjoint Fredholm operators on a Hilbert space have third homotopy group the integers. We realise the generator......

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