335 citations · 4.4k across the 103 of their papers we have counts for
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Electrically Tunable Valley-Based Qubits in Moiré Quantum Dots
Yasser Saleem, Pawel Potasz, Ewelina M. Hankiewicz
The search for scalable, electrically controlled qubits remains a central challenge in quantum technology. We introduce gate-defined moiré quantum dots as a promising platform for…
Machine learning prediction of the convergence criterion for a topological invariant of finite non-Hermitian chains
Raghav Chaturvedi, Viktor Könye, Ewelina M. Hankiewicz
A topological invariant based on polar-decomposition of matrices correctly captures the topology of finite non-Hermitian chains exhibiting the non-Hermitian skin effect, provided t…
Topological edge states emerging from twisted moiré bands
Yasser Saleem, Paweł Potasz, Anna Dyrdał +2
We study twisted bilayer WSe within a continuum moiré model and apply a method for treating finite geometries directly in the continuum framework, thereby avoiding the limitati…
Interfering trajectories in a ballistic Andreev cavity
Pankaj Mandal, Marcel Kaschper, Fernando Dominguez +9
The conventional description of transport through the interface between a normal conductor and a superconductor reduces the system to a one-dimensional problem treating Andreev ref…
Non-Hermitian topology of quantum spin-Hall systems to detect edge-state polarization
Raghav Chaturvedi, Ion Cosma Fulga, Jeroen van den Brink +1
We study the non-Hermitian topology of multi-terminal transport in a quantum spin-Hall device described by the Bernevig-Hughes-Zhang model. We show that breaking time-reversal symm…
Backscattering in Topological Edge States Despite Time-Reversal Symmetry
Jonas Erhardt, Mattia Iannetti, Fernando Dominguez +7
Spin-momentum-locked edge states of quantum spin Hall insulators (QSHIs) provide a compelling platform for spintronic applications, owing to their intrinsic protection against back…