%0 Journal Article
%A Dürr, Stephan
%A Weber, Johannes H.
%T Topological properties of minimally doubled fermions in two spacetime dimensions
%J Physical review / D
%V 105
%N 11
%@ 2470-0010
%C Melville, NY
%I Inst.
%M FZJ-2023-00114
%P 114511
%D 2022
%X The two-dimensional Schwinger model is used to explore how lattice fermion operators perceive the global topological charge $q \in \mathbb{Z}$ of a given background gauge field. We focus on Karsten-Wilczek and Borici-Creutz fermions, which are minimally doubled, and compare them to Wilson, Brillouin, naive, staggered and Adams fermions. For each operator the eigenvalue spectrum in a background with $q \neq 0$ is determined along with the chiralities of the eigenmodes, and the spectral flow of the pertinent hermitean operator is worked out. We find that Karsten-Wilczek and Borici-Creutz fermions perceive the global topological charge $q$ in the same way as staggered and naive fermions do.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000822545100013
%R 10.1103/PhysRevD.105.114511
%U https://juser.fz-juelich.de/record/916811