University of Basel

Department
of Physics

Quantum Coherence Lab - Zumbühl Group

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New on the arXiv: Machine learning automatic tuning of a quantum dot

We demonstrate a statistical tuning algorithm that navigates the entire large parameter space of a gate-defined quantum dot. Using just a few modelling assumptions, we demonstrate fully automated tuning to the double dot regime.This also…
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Mathieu de Kruijf, TU Eindhoven, starts EMP access on Si:finFET Spin Qubit

Mathieu de Kruijf from the group of Prof. Erik Bakkers, TU Eindhoven, is starting a user access project on the Basel node of the European Microkelvin Platform (EMP). The project is working to implement hole spins in gate defined Si finFET…
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NCCR Spin Qubits announced today!

Today, the Swiss Federal Council and the SNSF have announced six new national research programs, among them the NCCR SPIN, hosted at the Department of Physics at the University of Basel, collaborating with partners IBM, EPFL and ETHZ. The…
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Orson van der Molen starts EMP user access on direct-Rashba spin qubit

Orson van der Molen from the group of Prof. Erik Bakkers, TU Eindhoven, is starting a user access project on the Basel node of the European Microkelvin Platform (EMP). The project is working to implement hole spins in gate defined Ge/Si…
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Prof. Silke Bühler-Paschen gives Basel Physics Colloquium!

Today, Prof. Silke Bühler-Paschen from the Institute of Solid State Physics of the Technical University of Vienna, Austria, is giving the Basel Physics Colloquium, with title "Correlations with drive - New phases and excitations in quantum…
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Pierre Chevalier Kwon joins as PhD student

With a MSc in Nanosciences and a BSc in Physics from the University of Paris IX, Saclay, Pierre is starting his PhD thesis on Ge/Si nanowire spin qubits. Welcome to the group, looking forward to work with you!
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Ares Group starts European Microkelvin Platforn User Access on Machine Learning

Dominic Lennon from the group of Dr. Natalia Ares, Oxford University, has started a user access project on the Basel node of the European Microkelvin Platform (EMP). The project is working to implement machine learning to search for Pauli…
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FET project TOPSQUAD launched: TOpologically Protected and Scalable QUAntum Bits

The consortium consisting of Uni Basel, TU Eindhoven, Uni Twente and IST Vienna plus start-ups nano-PHAB and BASPI is setting out to explore Majorana fermions in Ge/Si core/shell nanowires. The hole carriers in this system are subject to…
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New on the arXiv: Low-symmetry nanowires for enhanced Dresselhaus spin-orbit interaction

We study theoretically the Dresselhaus spin-orbit interaction (SOI) in zinc-blende nanowires of various growth directions. While the Dresselhaus SOI is suppressed for select directions and confinements, many configurations allow for a…
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Published in npj Quantum Information: Efficiently measuring a quantum device using machine learning

Machine learning algorithm performing fully automatic measurements on the GaAs quantum dot, guessing most informative measurements using probabilistic deep-generative model, giving a speed-up of about a factor of 4. Collaboration with…
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Simon Svab presents his MSc thesis research

Simon Svab successfully completed his MSc thesis "g-factor anisotropy in a lateral GaAs spin qubit" and presented his results to the group today. Congratulations, Simon, on an outstanding thesis, and thanks very much for all the work! After…
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Luca Forrer and Pascal Würsch have joined the group to work on MSc theses

Luca Forrer (Nanoscience BSc, Basel) and Pascal Würsch (Physics BSc, ETHZ) joined the group this week to work on their MSc theses. Luca is working on quantum transport in templated III-V nanowires. Pascal is working on sub-mK quantum dot…
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Fabian Müller presents his MSc Thesis research

Fabian Müller successfully completed his MSc thesis "Gate Dielectrics for Quantum Dots in Ge/Si Core/Shell Nanowires" and presented his results to the group today. Congratulations, Fabian, on a very nice thesis, and thanks very much for all…
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Omid Sharifi joins group as PhD student

Having received his MSc from the University of Tehran on "Optical response of Rashba quantum rings", Omid is starting his PhD thesis on the microkelvin Project. Welcome to the group, looking forward to work with you!

Dr. Arne Laucht, UNSW Sydney, gave talk on Silicon qubit operation above one Kelvin

Dr. Arne Laucht, University of New South Wales, Sydney, Australia, just gave a special seminar "Silicon quantum processor unit cell operation above one Kelvin". Thanks very much for the visit and a very interesting talk...
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