collaborators

5 papers

quant-ph2026

Real-time adaptive tracking of fluctuating relaxation rates in superconducting qubits

Fabrizio Berritta, Jacob Benestad, Jan A. Krzywda +17

The fidelity of operations on a solid-state quantum processor is fundamentally bounded by environmental decoherence. Characterizing environmental fluctuations is challenging becaus…

quant-ph2025

Efficient Qubit Calibration by Binary-Search Hamiltonian Tracking

Fabrizio Berritta, Jacob Benestad, Lukas Pahl +14

We present and experimentally implement a real-time protocol for calibrating the frequency of a resonantly driven qubit, achieving exponential scaling in calibration precision with…

cond-mat.mes-hall2025

Tunable Inter-Edge Interactions in a Bilayer Graphene Quantum Hall Antidot

Mario Di Luca, Emily Hajigeorgiou, Zekang Zhou +5

Electronic interferometers in the quantum Hall regime are one of the best tools to study the statistical properties of localized quasiparticles in the topologically protected bulk.…

cond-mat.mes-hall2025

Automated in situ optimization and disorder mitigation in a quantum device

Jacob Benestad, Torbjørn Rasmussen, Bertram Brovang +9

We investigate automated in situ optimization of the potential landscape in a quantum point contact device, using a gate array patterned atop the constriction. Optimiz…

cond-mat.mes-hall2025

Autonomous Bootstrapping of Quantum Dot Devices

Anton Zubchenko, Danielle Middlebrooks, Torbjørn Rasmussen +4

Semiconductor quantum dots (QDs) are a promising platform for multiple different qubit implementations, all of which are voltage controlled by programmable gate electrodes. However…