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- Centre National de la Recherche ScientifiqueFR123 papers
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74 papers · 1 filter
Finite-frequency admittance and noise of a helical edge coupled to a magnet
Oliver Franke, Paula Koll, Peter G. Silvestrov +1
The exchange coupling of the helical edge state of a quantum spin-Hall insulator with an easy-plane magnet has no effect on its DC electrical conductance if the magnet's anisotropy…
Excitons and trions in CrSBr bilayers
M. A. Semina, F. Tabataba-Vakili, A. Rupp +3
We study theoretically the neutral and charged excitons in two-dimensional semiconductors with anisotropic dispersion of charge carriers. Such a situation is realized in CrSBr-base…
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…
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…
Confinement-induced Majorana modes in a nodal topological superconductor
Simone Traverso, Niccolò Traverso Ziani, Maura Sassetti +1
We investigate the topological phase diagram of {an extension of the Haldane model with equal spin pairing superconductivity}. In two dimensions, we find a topological nodal superc…
Photonic cross-noise spectroscopy of Majorana bound states
Lena Bittermann, Fernando Dominguez, Patrik Recher
We propose a route to detect Majorana bound states (MBSs) by coupling a topological superconductor to quantum dots (QDs) in a junction. Here, two MBSs are coherently coupled…