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Zoltán Zimborás

@zoltanzimboras.bsky.social
571 followers 492 following 38 posts

Wigner's friend. Coincidentally also the Head of the Quantum Computing Group at Wigner RCP. Occasionally hired for the indirect observation of measurements.

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Zoltán Zimborás @zoltanzimboras.bsky.social · 01/10/2026
In our new preprint (prepared in the current QIP rush), we ask: How hard is it to simulate free fermion dynamics with magic input states classically? The reply is condensed in the Table below. Paper: scirate.com/arxiv/2609.4... arxiv.org/abs/2609.40187 1/6
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Zoltán Zimborás @zoltanzimboras.bsky.social · 06/07/2026
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Zoltán Zimborás @zoltanzimboras.bsky.social · 13/03/2026
This week scalable quantum generative learning finally reached bosonic systems: scirate.com/arxiv/2603.1... 1/3
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Zoltán Zimborás @zoltanzimboras.bsky.social · 09/01/2026
Great thread by Stefan Knecht on the new paper by the Garnet Chan group: "FeMoCo hasn’t been entirely solved, but for its gold-standard active space model (which is the model QC folks have been looking at!), there is now a classical benchmark that provides an excellent baseline for any quantum work"
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Zoltán Zimborás @zoltanzimboras.bsky.social · 26/11/2025
A larger update of our Majorana propagation paper is out! arxiv.org/abs/2503.18939
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Zoltán Zimborás @zoltanzimboras.bsky.social · 19/11/2025
Happy to see that our paper on the classical training and quantum inference of Fermionic Born Machines is now out on arXiv! 1/6 scirate.com/arxiv/2511.1...
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Zoltán Zimborás @zoltanzimboras.bsky.social · 08/11/2025
Super happy to see that our paper on the "Quantum generalizations of Glauber and Metropolis dynamics" with Anthony Chen, Csaba Czabán, João Doriguello, András Gilyén, Balázs Kabella, Michael Kastoryano, József Mák was accepted as a talk at #QIP2026 🎉🎉🎉
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Zoltán Zimborás @zoltanzimboras.bsky.social · 30/08/2025
Thanks a lot for visiting, Alex (@physicistalex.bsky.social)! It was super nice and productive - we found a couple of nice platonic ideas concerning hyperbolic tilings and spin models.
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Zoltán Zimborás @zoltanzimboras.bsky.social · 01/07/2025
The paper was a result of a wonderful collaboration with Lorenzo Grevink, @haferjonas.bsky.social , @markusheinrich.bsky.social, Jonas Helsen, Marcel Hinsche, Tommy Schuster that started during a discussion at the Random Quantum Circuits in Amsterdam.
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Zoltán Zimborás @zoltanzimboras.bsky.social · 01/07/2025
In our new paper, we derive linear lower bounds on the circuit depth of Clifford, orthogonal, symplectic, matchgate designs (built of local gates from the respective groups).
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Reposted by Zoltán Zimborás
Deyan Ginev @dginev.bsky.social · 11/06/2025
This is not the way for HTML papers to gain visibility, but it's a kind of fallback I suppose. Last day's PDFs should be gradually coming back online, apologies for the delay.
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Zoltán Zimborás @zoltanzimboras.bsky.social · 11/06/2025
ArXiv seems broken this morning, can't get the pdf of today's papers. (Btw, the html option still works, so one can access the papers in that form.) @arxiv-quant-ph.bsky.social
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Zoltán Zimborás @zoltanzimboras.bsky.social · 25/03/2025
Our new Majorana Propagation method is out! It can be used either alone as a classical simulation method or in conjunction with quantum subroutines, see @qzoeholmes.bsky.social's thread below. (Btw, it's so efficient that it broke scirate: this and all papers after ours are missing from scirate.)
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Zoltán Zimborás @zoltanzimboras.bsky.social · 21/02/2025
Happy to share that I will join University of Helsinki as a Professor at the Department of Physics. The team at UH has been incredibly welcoming, and I’m looking forward to working here. More to come soon (e.g., announcements of open postdoc, PhD positions)!
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Zoltán Zimborás @zoltanzimboras.bsky.social · 11/02/2025
Wow! Wonder how what Google map shows in Mexico....
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Zoltán Zimborás @zoltanzimboras.bsky.social · 11/02/2025
That was fast! Today on my Google Map:
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Zoltán Zimborás @zoltanzimboras.bsky.social · 09/02/2025
Recently, I was rereading Carl Sagan’s book, "The Demon-Haunted World: Science as a Candle in the Dark" published in 1995. I am just now randomly posting a paragraph from it; you know, any resemblance to actual events is purely coincidental.
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Zoltán Zimborás @zoltanzimboras.bsky.social · 06/02/2025
I am super happy that this work is out now in Nature Communications! It was really fun to work and discuss with Charles ChunJun Cao, Wissam Chemissany and Alexander Jahn! www.nature.com/articles/s41...
nature.com
Overlapping qubits from non-isometric maps and de Sitter tensor networks - Nature Communications
For some states in quantum gravity, notions of locality can deviate from effective field theory predictions. Here, the authors show that such deviations can be recast in the quantum information framew...
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Reposted by Zoltán Zimborás
Victor V. Albert @vva.bsky.social · 14/01/2025
"We do not yet have proven exponential quantum speedups for end-to-end applications in machine learning, optimization, quantum chemistry, or materials science that guarantee substantial commercial and financial value." arxiv.org/pdf/2501.05694
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Reposted by Zoltán Zimborás
John Preskill @preskill.bsky.social · 14/01/2025
Useful perspective, clearly written and well-reasoned. arxiv.org/abs/2501.05694
arxiv.org
Myths around quantum computation before full fault tolerance: What no-go theorems rule out and what they don't
In this perspective article, we revisit and critically evaluate prevailing viewpoints on the capabilities and limitations of near-term quantum computing and its potential transition toward fully fault...
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Zoltán Zimborás @zoltanzimboras.bsky.social · 13/01/2025
To reach some consensus about the prospects of near-term (late nisq and early fault tolerant) quantum computing, we had a 3-day discussion event (“Quantum Now”) in Lapland with both optimists and pessimists. This continued at SeeQA 2024 in Oxford. See our conclusions here arxiv.org/abs/2501.05694
arxiv.org
Myths around quantum computation before full fault tolerance: What no-go theorems rule out and what they don't
In this perspective article, we revisit and critically evaluate prevailing viewpoints on the capabilities and limitations of near-term quantum computing and its potential transition toward fully fault...
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