3 papers
cond-mat.mes-hall2021
Generalized Chern numbers based on open system Green's functions
M. Belén Farias, Solofo Groenendijk, Thomas L. Schmidt
We present an alternative approach to studying topology in open quantum systems, relying directly on Green's functions and avoiding the need to construct an effective non-Hermitian…
cond-mat.mes-hall2020
Universal Hall conductance scaling in non-Hermitian Chern insulators
Solofo Groenendijk, Thomas L. Schmidt, Tobias Meng
We investigate the Hall conductance of a two-dimensional Chern insulator coupled to an environment causing gain and loss. Introducing a biorthogonal linear response theory, we show…
cond-mat.str-el2019
Parafermion braiding in fractional quantum Hall edge states with finite chemical potential
Solofo Groenendijk, Alessio Calzona, Hugo Tschirhart +2
Parafermions are non-Abelian anyons which generalize Majorana fermions and hold great promise for topological quantum computation. We study the braiding of parafe…