activity
20232026
most citedContinuous microwave photon counting by semiconductor-superconductor hybrids

9 citations · 28 across the 9 of their papers we have counts for

collaborators

9 papers

cond-mat.mtrl-sci2026

Cathodoluminescence Analysis of Defects and Grain Boundaries in Zn3P2 Thin Films Grown on Graphene by MOVPE and MBE

Thomas Hagger, Mohammadreza Hassanzadeh, Aidas Urbonavicius +12

Zn3P2 is a promising earth-abundant absorber for thin-film photovoltaics, yet its development is hindered by the lack of lattice-matched substrates, its incompatible thermal expans…

cond-mat.mes-hall2025

Radial etching of strongly confined crystal-phase defined quantum dots

Markus Aspegren, Chris Mkolongo, Sebastian Lehmann +3

We realize strongly confined quantum dots (QDs) in InAs nanowires (NWs) by combining epitaxial crystal-phase control with chemical wet etching. A strong axial confinement is first…

cond-mat.mes-hall2025

Information Thermodynamics in a Quantum Dot Szilard Engine - Experimentally Investigating Fluctuation Theorems and Thermodynamic Uncertainty Relations

David Barker, Sebastian Lehmann, Kimberly A. Dick +3

In Szilard's engine, measurement and feedback allows to extract work from an equilibrium environment, a process otherwise forbidden by the laws of thermodynamics. Recent theoretica…

cond-mat.mtrl-sci2025

Unconventional cross sections in zinc phosphide nanowires grown using exclusively earth-abundant components

Simon Escobar Steinvall, Hampus Thulin, Nico Kawashima +8

To enable lightweight and flexible solar cell applications it is imperative to develop direct bandgap absorber materials. Moreover, to enhance the potential sustainability impact o…

cond-mat.mes-hall2025

Near-Unity Charge Readout in a Nonlinear Resonator without Matching

Harald Havir, Andrea Cicovic, Pierre Glidic +4

Dissipative sensors typically use linear resonators with impedance matching to achieve maximal signal and fast operation. The impedance matching, however, sets an upper limit to th…

cond-mat.mes-hall2024★ 5 cited

Coherence of an Electronic Two-Level System under Continuous Charge Sensing by a Quantum Dot Detector

Subhomoy Haldar, Morten Munk, Harald Havir +7

We investigate experimentally the quantum coherence of an electronic two-level system in a double quantum dot under continuous charge detection. The charge-state of the two-level s…

cond-mat.mes-hall2024★ 5 cited

High-efficiency microwave photodetection by cavity coupled double dots with single cavity-photon sensitivity

Subhomoy Haldar, Harald Havir, Waqar Khan +6

We present a superconducting cavity-coupled double quantum dot (DQD) photodiode that achieves a maximum photon-to-electron conversion efficiency of 25% in the microwave domain. Wit…

cond-mat.mes-hall2024★ 9 cited

Continuous microwave photon counting by semiconductor-superconductor hybrids

Subhomoy Haldar, David Barker, Harald Havir +4

The growing interest in quantum information has enabled the manipulation and readout of microwave photon states with high fidelities. The presently available microwave photon count…

cond-mat.mes-hall2023★ 9 cited

Josephson junction π-0 transition induced by orbital hybridization in a double quantum dot

Rousan Debbarma, Athanasios Tsintzis, Markus Aspegren +5

In this work, we manipulate the phase shift of a Josephson junction using a parallel double quantum dot (QD). By employing a superconducting quantum interference device, we determi…