4 papers
Interedge backscattering in quantum spin Hall-based NS and SNS junctions
Cajetab Heinz, Patrik Recher, Fernando Dominguez
We investigate the microscopic conditions that allow for the coupling between opposite quantum spin Hall (QSH) edges in hybrid junctions with superconductors. Using a microscopic B…
Interedge backscattering in time-reversal symmetric quantum spin Hall Josephson junctions
Cajetan Heinz, Patrik Recher, Fernando Dominguez
Using standard tight-binding methods, we investigate a novel backscattering mechanism taking place on quantum spin Hall N'SNSN' Josephson junctions in the presence of time-reversal…
Interacting Bose gases in twisted-bilayer optical lattices
Ganesh C. Paul, Patrik Recher, Luis Santos
Recent experiments have realized ultra-cold gases in twisted-bilayer optical lattices. We show that interacting bosons in these lattices present a highly non-trivial ground-state p…
Super-Poissonian noise from quasiparticle poisoning in electron transport through a pair of Majorana bound states
Florinda Viñas Boström, Patrik Recher
Topological qubits based on non-abelian Majorana bound states (MBSs) are protected by parity which is challenged by quasiparticle poisoning (QPP). In this work, we show how QPP aff…