Machiel Blok

@machielblok.bsky.social

Assistant Professor @UofR physics-Quantum information - superconducting circuits - Dad - Dutch - Soccer - Ajax, onze club! https://labsites.rochester.edu/bloklab/ Machielblok@qubit-social.xyz @MachielSBlok on X

I'm highly excited to share our new PRX paper on measuring the dynamics of transmon ionization using a ten-level transmon qudit. The work is a collaboration between the Blok Lab at the University of Rochester and the Blais group at Université de Sherbrooke 1/4

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The semester is finally over, so it's time for me to post the memes my students made for extra credit on their final (Physics 438b: Quantum Mechanics). As always, good memes are the result of my inspiring teaching, bad memes are the result of kids these days. Let's start it off!

Alignment chart with Pauli matrices "Looks like a cinnamon roll" / "is actually a cinnamon roll", SWAP "looks like a cinnamon roll" / "could actually kill you", generalized CPhase (D) "looks like they could kill you" / "is actually a cinnamon roll", CCNOT "looks like they could kill you" / "could actually kill you"

Why are so many people so obsessed with “Google Scholar fraud”? Another example of someone creating a few citations — no, you don’t get a job/promotion because you have 132 citations. And the “meta study” found 144 suspected cases out of 1 million (!) profiles.

How easy is it to fudge your scientific rank? Meet Larry, the world’s most cited cat

“Exercise in absurdity” reveals flaws in Google Scholar’s productivity metrics

science.org

🌟 Excited to speak, have played a small advisory board role, and be back here after the last one 6 years ago for the Rochester Conference on Coherence and Quantum Science (CQS-12)! CQS is special, dating back to 1960, bringing together Nobel Laureates & field pioneers #CQS2025

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New paper out! We resonantly couple a superconducting heavy-fluxonium qubit ⚛️ to a macroscopic membrane 🥁 oscillating at a few MHz. ~300 repeated interactions let us track its quantum motion, observe back-action & probe non-commuting operators. Diósi–Penrose next? (1/8) arxiv.org/abs/2505.21481

Probing the quantum motion of a macroscopic mechanical oscillator with a radio-frequency superconducting qubit

Long-lived mechanical resonators like drums oscillating at MHz frequencies and operating in the quantum regime offer a powerful platform for quantum technologies and tests of fundamental physics. Yet,...

arxiv.org