Simon Storz

Verifying a quantum device without trusting its internal workings: we present device-independent self-testing with superconducting circuits, out on arxiv today.

@PeterMorganQF @AndreasAtETH I think this is still a good way of conceiving the intuition of entanglement to a non-physicist audience. Of course you are right, Peter - on purely technical grounds it is more accurate to talk about "strong correlations", or similarly.

@AndreasAtETH “Particles can influence each other instantaneously”? The experiment is awesomely up-to-date, but this seems old-school.

Last reminder. Attend my talk at the #dpg2024 in #Berlin this morning at 9:30 am. A little video summary is attached. QI 10: Focus Session: Exploring Quantum Entanglement with Superconducting Qubits and Resonators (joint session QI/TT) QI 10.1: Hauptvortrag Dienstag, 19. März 2024, 09:30–10:00, HFT-FT 131 Loophole-free Bell Inequality Violation with Superconducting Circuits — •Andreas Wallraff — Department of Physics, ETH Zurich, Switzerland

what i wish someone had told me: blog.samaltman.com/what-i-wish-so…

@pierochiappina Hi Piero! Using the f0-g1 transition facilitates controlling the phase and envelope of the shaped photon we use for entanglement generation. The scheme is microwave-based only and does not require flux biasing, see here for details: journals.aps.org/prx/abstract/1…

@simonstorz Amazing results! A question for you, about the qubit pitch/catch operation: is there a reason you choose to emit/absorb photons via the transmon 'f' state? Can you not achieve the same by addressing the 'g1 <-> e0' transition?

~Quantum computing meets non-locality~ I'm thrilled to see our @qudev @ETH experiment being published in Nature today: a loophole-free Bell test with superconducting circuits. nature.com/articles/s4158… Follow this two minute - 🧵 for the key points:

Superconducting quantum bits have been entangled over a separation of 30 metres, enabling a loophole-free Bell experiment. Find out more in this N&V by Marissa Giustina. go.nature.com/42slLg6

🌟 It was a pleasure dedicating most of my PhD to this fascinating project, and being able to collaborate with a fantastic team. Let me know if you have any questions about the experiment!

👨‍💻 We received great theory support from Jean-Daniel and @NSangouard from @CEAParisSaclay @ParisSaclay. The master equation simulations of our experiment were developed by @baproyer and @circuitqed at @USherbrooke @IQ_USherbrooke and @Yale.

ETH-Forschende konnten mit dem ersten schlupflochfreien Bell-Test mit supraleitenden Schaltkreisen bestätigen, dass die klassischen Vorstellungen von Kausalität in der Quantenwelt nicht gelten. @AndreasAtETH ethz.ch/de/news-und-ve…