Tunable superconducting coupling of quantum dots via Andreev bound states in semiconductor-superconductor nanowires

CX Liu, G Wang, T Dvir, M Wimmer - Physical review letters, 2022 - APS
Semiconductor quantum dots have proven to be a useful platform for quantum simulation in
the solid state. However, implementing a superconducting coupling between quantum dots …

Crossed Andreev reflection and elastic cotunneling in three quantum dots coupled by superconductors

A Bordin, X Li, D Van Driel, JC Wolff, Q Wang… - Physical review …, 2024 - APS
The formation of a topological superconducting phase in a quantum-dot–based Kitaev chain
requires nearest neighbor crossed Andreev reflection and elastic cotunneling. Here, we …

Spin cross-correlation experiments in an electron entangler

A Bordoloi, V Zannier, L Sorba, C Schönenberger… - Nature, 2022 - nature.com
Correlations are fundamental in describing many-body systems. However, in experiments,
correlations are notoriously difficult to assess on a microscopic scale, especially for electron …

Crossed Andreev reflection and elastic co-tunneling in a three-site Kitaev chain nanowire device

A Bordin, X Li, D van Driel, JC Wolff, Q Wang… - arxiv preprint arxiv …, 2023 - arxiv.org
The formation of a topological superconducting phase in a quantum-dot-based Kitaev chain
requires nearest neighbor crossed Andreev reflection and elastic co-tunneling. Here we …

Coupled superconducting spin qubits with spin-orbit interaction

M Spethmann, XP Zhang, J Klinovaja, D Loss - Physical Review B, 2022 - APS
Superconducting spin qubits, also known as Andreev spin qubits, promise to combine the
benefits of superconducting qubits and spin qubits defined in quantum dots. While most …

Double quantum dot Andreev molecules: Phase diagrams and critical evaluation of effective models

P Zalom, K Wrześniewski, T Novotný, I Weymann - Physical Review B, 2024 - APS
This paper systematically investigates the phase diagram of a parallel double-quantum-dot
Andreev molecule, where the two quantum dots are coupled to a common superconducting …

Continuous microwave photon counting by semiconductor-superconductor hybrids

S Haldar, D Barker, H Havir, A Ranni, S Lehmann… - Physical Review Letters, 2024 - APS
We present a continuous microwave photon counter based on superconducting cavity-
coupled semiconductor quantum dots. The device utilizes photon-assisted tunneling in a …

Quantum dot source-drain transport response at microwave frequencies

H Havir, S Haldar, W Khan, S Lehmann, KA Dick… - Physical Review B, 2023 - APS
Quantum dots are frequently used as charge-sensitive devices in low-temperature
experiments to probe electric charge in mesoscopic conductors where the current running …

Parallel InAs nanowires for Cooper pair splitters with Coulomb repulsion

O Kürtössy, Z Scherübl, G Fülöp, IE Lukács… - npj Quantum …, 2022 - nature.com
Hybrid nanostructures consisting of two parallel InAs nanowires connected by an epitaxially
grown superconductor (SC) shell recently became available. Due to the defect-free SC …

Nonlocality of Majorana bound states revealed by electron waiting times in a topological Andreev interferometer

P Dutta, J Cayao, AM Black-Schaffer, P Burset - Physical Review Research, 2024 - APS
The analysis of waiting times of electron transfers has recently become experimentally
accessible owing to advances in noninvasive probes working in the short-time regime. We …