136 citations · 463 across the 16 of their papers we have counts for
10 papers · 1 filter
Exploring the energy spectrum of a four-terminal Josephson junction: Towards topological Andreev band structures
Tommaso Antonelli, Marco Coraiola, David Christian Ohnmacht +10
Hybrid multiterminal Josephson junctions (JJs) are expected to harbor a novel class of Andreev bound states (ABSs), including topologically nontrivial states in four-terminal devic…
Spin polarization of Quantum Hall states for filling factors 1 < v < 2 measured with microcavity polaritons
Odysseas Williams, Stefan Faelt, Filip Krizek +1
Spin polarization measurements were performed in three 2D Electron Gases in GaAs with densities n = 9.1, 7.2 and 6.5 x10^10 cm-2, in the quantum Hall regime. Full spin polarization…
Magnetocapacitance oscillations dominated by giant Rashba spin orbit interaction in InAs/GaSb quantum wells separated by AlSb barrier
A. S. L. Ribeiro, R. Schott, C. Reichl +2
We observed magnetocapacitance oscillations in InAs/GaSb quantum wells separated by a \,nm AlSb middle barrier. By realizing independent ohmic contacts for electrons in InAs an…
Flux-Tunable Josephson Diode Effect in a Hybrid Four-Terminal Josephson Junction
M. Coraiola, A. E. Svetogorov, D. Z. Haxell +10
We investigate the direction-dependent switching current in a flux-tunable four-terminal Josephson junction defined in an InAs/Al two-dimensional heterostructure. The device exhibi…
Josephson-like tunnel resonance and large Coulomb drag in GaAs-based electron-hole bilayers
M. L. Davis, S. Parolo, C. Reichl +2
Bilayers consisting of two-dimensional (2D) electron and hole gases separated by a 10 nm thick AlGaAs barrier are formed by charge accumulation in epitaxially grown GaAs. Both vert…
Phase-engineering the Andreev band structure of a three-terminal Josephson junction
M. Coraiola, D. Z. Haxell, D. Sabonis +11
In hybrid Josephson junctions with three or more superconducting terminals coupled to a semiconducting region, Andreev bound states may form unconventional energy band structures,…
Microwave-induced conductance replicas in hybrid Josephson junctions without Floquet-Andreev states
D. Z. Haxell, M. Coraiola, D. Sabonis +9
Light-matter interaction enables engineering of non-equilibrium quantum systems. In condensed matter, spatially and temporally cyclic Hamiltonians are expected to generate energy-p…
Automated tuning of inter-dot tunnel couplings in quantum dot arrays
C. J. van Diepen, P. T. Eendebak, B. T. Buijtendorp +5
Semiconductor quantum dot arrays defined electrostatically in a 2D electron gas provide a scalable platform for quantum information processing and quantum simulations. For the oper…
Computer-automated tuning of semiconductor double quantum dots into the single-electron regime
T. A. Baart, P. T. Eendebak, C. Reichl +2
We report the computer-automated tuning of gate-defined semiconductor double quantum dots in GaAs heterostructures. We benchmark the algorithm by creating three double quantum dots…
Non-destructive measurement of electron spins in a quantum dot
T. Meunier, I. T. Vink, L. H. Willems van Beveren +5
We propose and implement a non-destructive measurement that distinguishes between two-electron spin states in a quantum dot. In contrast to earlier experiments with quantum dots, t…