123 citations · 379 across the 14 of their papers we have counts for
6 papers · 1 filter
Phonon spectral density in a GaAs/AlGaAs double quantum dot
Andrea Hofmann, Christian Karlewski, Andreas Heimes +6
We study phonon emission in a GaAs/AlGaAs double quantum dot by monitoring the tunneling of a single electron between the two dots. We prepare the system such that a known amount o…
Electronic Decoherence of Two-Level Systems in a Josephson Junction
Alexander Bilmes, Sebastian Zanker, Andreas Heimes +5
The sensitivity of superconducting qubits allows for spectroscopy and coherence measurements on individual two-level systems present in the disordered tunnel barrier of an $\mathrm…
Lasing and transport in a multi-level double quantum dot system coupled to a microwave oscillator
Christian Karlewski, Andreas Heimes, Gerd Schön
We study a system of two quantum dots, each with several discrete levels, which are coherently coupled to a microwave oscillator. They are attached to electronic leads and coupled…
Majorana fermion fingerprints in spin-polarised scanning tunneling microscopy
Panagiotis Kotetes, Daniel Mendler, Andreas Heimes +1
We calculate the spatially resolved tunneling conductance of topological superconductors (TSCs) based on ferromagnetic chains, measured by means of spin-polarised scanning tunnelin…
Interplay of topological phases in magnetic adatom-chains on top of a Rashba superconducting surface
Andreas Heimes, Daniel Mendler, Panagiotis Kotetes
We investigate the topological properties and the accessible Majorana fermion (MF) phases arising in a hybrid device consisting of a chain of magnetic adatoms placed on the surface…
Majorana fermions from Shiba states in an antiferromagnetic chain on top of a superconductor
Andreas Heimes, Panagiotis Kotetes, Gerd Schön
We propose a new mechanism for topological superconductivity based on an antiferromagnetically ordered chain of magnetic atoms on the surface of a conventional superconductor. In a…