iiinova — where your digital self keeps evolving

Andreas Wallraff @andreasateth.bsky.social · 23/08/2026

Possibly, you get to see some new devices, such as the ones shown below, on this occasion. The work I will be presenting was done at the Quantum Device Lab (qudev.phys.ethz.ch) of the Department of Physics, @ethz.ch Zurich and at the ETH Zürich - PSI Quantum Computing Hub. and the Quantum Center.

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Andreas Wallraff @andreasateth.bsky.social · 23/08/2026

Looking forward to be attending the Superconducting Qubits & Algorithms (SQA) 2026 conference in Gothenburg, Sweden from August 25 to 28. I will be giving an invited keynote talk on the opening evening and present new work on #quantum error correction from our lab.

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Andreas Wallraff @andreasateth.bsky.social · 19/06/2026

Enjoying my 40 USD surcharge ‘window seat’ on my delayed United flight from LAX to SFO. So no photos out of the window, I guess. Special service for Star Alliance members.

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Andreas Wallraff @andreasateth.bsky.social · 17/06/2026

Having a great time at the UCLA #Quantum #Device Workshop with Mollie Schwartz, the internet sensation @zlatko-minev.bsky.social, and the UCLA bear. Check out the program here: qdc-qcsa.org/qdw/2026/info . It is never too late to learn more about quantum science with superconducting circuits.

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Andreas Wallraff @andreasateth.bsky.social · 14/06/2026

Sunday quiz: Can you point at the @ethz.ch #Zurich main building on this photo? Do you recognize anything else?

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Andreas Wallraff @andreasateth.bsky.social · 13/06/2026

I am heading out to the #Quantum #Device #Workshop at #UCLA. Last year it was a super fun event. Looking forward to meet students and colleagues there. Find out more about the program and the other contributors here: qdc-qcsa.org/qdw/2026/info Will you be attending in person or online?

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Andreas Wallraff @andreasateth.bsky.social · 05/06/2026

Gooooood morning #Switzerland! It is snowing! Where am I?

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Andreas Wallraff @andreasateth.bsky.social · 30/05/2026

Hopp Schwiiz! I think #Switzerland is moving on to the finals today in the @iihfhockey.bsky.social #hockey world championship semi-final game against Norway. The Swiss team is doing a great job and the atmosphere in the Arena in #Zurich is amazing with 10.000 supporters. Check out the video below.

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Andreas Wallraff @andreasateth.bsky.social · 27/05/2026

The work was done in a collaboration between the Renner and Wallraff groups at the Department of Physics of @ethz.ch Zürich and the Quantum Center @ethz-qc.bsky.social by A. Kulikov, S. Storz, J. D. Schär, M. Sandfuchs, R. Wolf, F. Berterottière, C. Hellings, @andreasateth.bsky.social & R. Renner.

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Andreas Wallraff @andreasateth.bsky.social · 27/05/2026

Are you in need of some certified #randomness? Check out our newest paper entitled "Experimental randomness amplification" which appeared in @nature.com today. www.nature.com/articles/s41...

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Andreas Wallraff @andreasateth.bsky.social · 15/05/2026

The work was supported by State Secretariat for Education, Research and Innovation SERI and ETH Zürich. (5/5)

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Andreas Wallraff @andreasateth.bsky.social · 15/05/2026

The authors are Yongxin Song, Johannes Knörzer, Kieran Dalton, @AndreasAtETH, Jean-Claude Besse. The work was done at the Quantum Device Lab of the Department of Physics, @ethz.ch, the Quantum Center, @ethz-qc.bsky.social , and the @ethz.ch - @psi.ch Quantum Computing Hub. (4/5)

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Andreas Wallraff @andreasateth.bsky.social · 15/05/2026

We also analyze the overhead incurred by doing the computation blindly. Such methods could be used in the future over larger distances using either microwave or optical interconnects. (2/5)

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Andreas Wallraff @andreasateth.bsky.social · 15/05/2026

Do you wonder how you can execute a #quantum algorithm on a quantum server in a way that the operator of the server does know neither the task nor the result? Here we conceptually demonstrate blind quantum computing using two modules on a modular 3D integrated #superconducting #circuit. (1/5)

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Andreas Wallraff @andreasateth.bsky.social · 09/05/2026

Full house for the 2026 #Quantum #Hackathon organized by the Quantum Engineering Commission at @ethz.ch #Zurich. With a welcome note the Rector of ETH Zürich and by Manjari Sengupta the president of the Quantum #Engineering Commission Check out the program here: qec.amiv.ethz.ch/qhack26/

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Andreas Wallraff @andreasateth.bsky.social · 05/05/2026

What the heck is this colorful thing above lake #Zurich? Seen today.

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Andreas Wallraff @andreasateth.bsky.social · 02/05/2026

This year our Quantum Device Lab (qudev.phys.ethz.ch) has completed its first 20 years at the Department of Physics of @ethz.ch Zürich, since 6 years we are also part of the Quantum Center, @ethz-qc.bsky.social, and since 5 years we co-run the @ethz.ch Zürich - @psi.ch #Quantum Computing Hub. ...

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Andreas Wallraff @andreasateth.bsky.social · 01/05/2026

Found a new favorite #coffee place near @ETH_en #Zurich and the University @UZH_en in #Zurich, #Switzerland. It's called #Hype but it is no hype. Check it our. maps.app.goo.gl/avqfgqq8aVva...

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Andreas Wallraff @andreasateth.bsky.social · 14/03/2026

Special luggage. Where am I going and what for? Also will Swiss and Air Canada manage to loose my gear again?

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Andreas Wallraff @andreasateth.bsky.social · 20/01/2026

Up for a race? I hear top speed is 150 km/h if you know what you are doing!

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Andreas Wallraff @andreasateth.bsky.social · 18/01/2026

Gooooood moooorrrrnnnning from … Mönch, und Jungfrau. Doing some skiing today. Maybe participating in the Slalom race spontaneously. Where am I?

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Andreas Wallraff @andreasateth.bsky.social · 09/01/2026

Goooooood moooorrrrning. Do you recognize this place? Any guesses on what I am here for?

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Andreas Wallraff @andreasateth.bsky.social · 02/01/2026

Bon appetit. More food pics from my holiday cooking adventures.

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Andreas Wallraff @andreasateth.bsky.social · 31/12/2025

Got back to doing some cooking over the holidays! These are meat balls with a spicy tomato-pepperoni-ginger sauce which turned out very nice. I have not posted any food pics in a while! Are you still into it?

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Andreas Wallraff @andreasateth.bsky.social · 08/11/2025

Francois Swiadek, Christian Kraglund Andersen (now professor @tudelft @qutech.bsky.social), Christopher Eichler (now professor FAU Erlangen), @andreasateth.bsky.social supported by IARPA, the @snsf.ch Swiss National Science Foundation, and the @ethfoundation.bsky.social. [7/7]

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Andreas Wallraff @andreasateth.bsky.social · 08/11/2025

The work was done by Christoph Hellings, Nathan Lacroix (now at Google), Ants Remm (now at @atlanticquantum.bsky.social), Richard Boell, Johannes Herrmann (now at YQuantum), Stefania Lazar (now at Zurich Instruments), Sebastian Krinner (now at Zurich Instruments) ... [6/7]

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Andreas Wallraff @andreasateth.bsky.social · 08/11/2025

Check out our newest paper "Calibrating magnetic flux control in superconducting circuits by compensating distortions on timescales from nanoseconds up to tens of microseconds" published in the @apsphysics.bsky.social journal @physrevresearch.bsky.social 7, 043142 (2025). [3/7]

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Andreas Wallraff @andreasateth.bsky.social · 08/11/2025

... control the qubit transition frequency on time scales ranging from nano- to microseconds. Also make sure that there are no bias-tees in your circuit that have a non-linearity, observable as a power-dependence of the response function, which may hamper your efforts. [2/7]

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Andreas Wallraff @andreasateth.bsky.social · 08/11/2025

Do you find it challenging to accurately control the transition frequency of your superconducting #qubit by applying magnetic flux? Frequently, the frequency dependence of the response function of the electronics, the wiring, and the flux-bias circuitry must be compensated for to accurately .. [1/7]

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Andreas Wallraff @andreasateth.bsky.social · 04/10/2025

The work was done by Paul Magnard (now founder of Isentroniq), Simon Storz (now postdoc at Department of Physics (D-PHYS), ETH Zurich), Philipp Kurpiers (now at Rohde & Schwarz), Josua Schär, Fabian Marxer (now at IQM Quantum Computers), Janis Lütolf, Theo Walter, JC Besse, [3/4]

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Andreas Wallraff @andreasateth.bsky.social · 04/10/2025

This was a major achievement which enabled a range of experiments at our lab (qudev.phys.ethz.ch/publications) and also elsewhere. Read more here in this @PhysRevLett 125, 260502 (2020): journals.aps.org/prl/abstract... . [2/4]

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Andreas Wallraff @andreasateth.bsky.social · 04/10/2025

Five years ago at the @qudev Lab of ETH Zürich we have reported on the first realization of a "Microwave #Quantum Link between Superconducting Circuits Housed in Spatially Separated Cryogenic Systems" coupling #qubits across a distance of 5 meters through a #microwave waveguide. [1/5]

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Andreas Wallraff @andreasateth.bsky.social · 23/09/2025

This is a beautiful place! Do you know where this is? And what I am here for?

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Andreas Wallraff @andreasateth.bsky.social · 14/09/2025

... A list of current lab members, including the new ones for this term: qudev.phys.ethz.ch/members and much more ... The page will continue to be updated throughout the next weeks.

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Andreas Wallraff @andreasateth.bsky.social · 14/09/2025

Just in time for the start of the new fall term 2025, our Quantum Device Lab's new and improved web site is available. Go and check it out here: qudev.phys.ethz.ch With an updated list of publications: qudev.phys.ethz.ch/publications ...

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Andreas Wallraff @andreasateth.bsky.social · 30/08/2025

The work was supported by State Secretariat for Education, Research and Innovation SERI, by Innosuisse, IARPA, by the Swiss National Science Foundation @snsf.ch, the @ethfoundation.bsky.social, and @ethz.ch Zürich.

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Andreas Wallraff @andreasateth.bsky.social · 30/08/2025

... at the Department of Physics (D-PHYS), ETH Zurich, the Quantum Center, ETH Zurich and the @ethz.ch Zürich— @psich.bsky.social Paul Scherrer Institut #Quantum Computing Hub,

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Andreas Wallraff @andreasateth.bsky.social · 30/08/2025

The paper was authored by Song Yongxin,, Liberto Beltrán, Ilya Besedin, Michael Kerschbaum, Marek Pechal, François Swiadek, Christoph Hellings, Dante Colao Zanuz, Alexander Flasby, Jean-Claude Besse, and Andreas Wallraff ...

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Andreas Wallraff @andreasateth.bsky.social · 29/08/2025

Looks like I will be taking an appropriate mode of transportation for a #quantum physicist on my flight from #IAD to #ZRH tonight. Do you know who is advertizing this?

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Andreas Wallraff @andreasateth.bsky.social · 21/08/2025

Alexandre Blais (UdSherbrooke Université de Sherbrooke), Arne Grimsmo (Amazon Web Services (AWS)), Steven Girvin (@yaleqi.bsky.social), Andreas Wallraff (@ethz.ch) [3/3]

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Andreas Wallraff @andreasateth.bsky.social · 21/08/2025

Looks like our Circuit Quantum Electrodynamics (or short Circuit QED) Review (@apsphysics.bsky.social American Physical Society, Rev. Mod. Phys. 93, 025005 – Published 19 May, 2021) got the first 2000 citations. At least that is what Google Scholar claims. [1/3]

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Andreas Wallraff @andreasateth.bsky.social · 14/08/2025

I think I took a photo of a two-level defect, also known as a TLS, at the QEC25 conference on #quantum error correction at Yale and @yaleqi.bsky.social today. Are there any experts on superconducting circuits out here to confirm or deny?

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