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Robin Kothari

@robinkothari.bsky.social
464 followers 35 following 28 posts

Theoretical computer scientist working on quantum algorithms and complexity at Google Quantum AI. Previously at Microsoft Quantum, MIT, U. Waterloo, and IIT Bombay.

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Robin Kothari @robinkothari.bsky.social · 10m
With Tony Metger, Ryan O'Donnell, Noah Shutty and Kewen Wu: A new exponential quantum speedup! Or alternatively, a new rigorous classical algorithm for Binary-Error LWE. scirate.com/arxiv/2609.4... arxiv.org/abs/2609.40321
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Robin Kothari @robinkothari.bsky.social · 23h
Carlos Bravo-Prieto, Aram Harrow (@harrowing.bsky.social), and I just uploaded a preprint that proves new upper and lower bounds to finally close the query complexity of the quantum linear systems problem. scirate.com/arxiv/2609.3... arxiv.org/abs/2609.35660
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Robin Kothari @robinkothari.bsky.social · 28/09/2026
Reminder for those submitting to QIP 2027: You must register your paper by the end of the day! This means you have to enter a title, abstract, list of authors, and select the topic area(s).
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Robin Kothari @robinkothari.bsky.social · 15/09/2026
Now on the arXiv: Shalev Ben-David and I (with the help of LLMs) show how a randomized algorithm can compute a total Boolean function faster than it is possible to certify the function! The full proof is < 3 pages. arxiv.org/abs/2609.15063 scirate.com/arxiv/2609.1...
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Robin Kothari @robinkothari.bsky.social · 10/09/2026
Frontier LLMs can now solve interesting open problems. So how should academic conferences adapt? I get asked this often and I've given this a lot of thought for QIP 2027 specifically, as chair of the Steering Committee. My personal thoughts (not speaking for the SC): (1/4)
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Robin Kothari @robinkothari.bsky.social · 22/07/2026
Frontier LLMs can now solve many quantum computing and theoretical computer science problems that I've personally spent weeks or months working on. How is everyone else dealing with the existential crisis that accompanies this reality?
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Robin Kothari @robinkothari.bsky.social · 21/04/2026
My strategy of attending the past 17 QIPs in a row has paid off! I'm happy to announce I'm now chair of the QIP steering committee (qipconference.org/steeringcomm...). More seriously, I'd like to thank the committee for selecting me and I look forward to QIP 2027 in Singapore.
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Robin Kothari @robinkothari.bsky.social · 09/04/2026
I'm happy to announce that we improved this result establishing @lance.fortnow.com's conjecture: from a quartic relationship between degree and rational degree to cubic. This is essentially the limit of this method and further demonstrates the power of "best-case" query measures.
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Robin Kothari @robinkothari.bsky.social · 31/03/2026
Just watched this movie. I wholeheartedly recommend it to everyone, even if you think AI is not very relevant to your life (because if it isn't right now, it soon will be). www.youtube.com/watch?v=xkPb...
youtube.com
THE AI DOC: OR HOW I BECAME AN APOCALOPTIMIST - Official Trailer [HD] - Only In Theaters March 27
YouTube video by Focus Features
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Reposted by Robin Kothari
Dripto Debroy @dripto.bsky.social · 27/02/2026
Registration is now open for QEC26, to be held this June in sunny Santa Barbara, CA! See the registration page at qec-conference.org for a link. Also, the deadline for submissions is next Friday. Make sure to get those in and spread the word to friends and collaborators!
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Robin Kothari @robinkothari.bsky.social · 15/01/2026
Congrats to Matt Kovacs-Deak, Daochen Wang, and (undergraduate student!) Rain Zimin Yang on resolving the 30+ year old conjecture (by Lance Fortnow) in query complexity on rational degree vs. degree. What's more, the proof is like ~2 pages if you know the standard tools of query complexity!
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Robin Kothari @robinkothari.bsky.social · 09/11/2025
I'm honored that this work with David Gosset and Chenyi Zhang was selected as one of three long plenary talks at QIP 2026!
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Robin Kothari @robinkothari.bsky.social · 06/11/2025
A very clear, detailed talk by Kewen Wu on our joint work with @booleananalysis.bsky.social
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Robin Kothari @robinkothari.bsky.social · 23/10/2025
Are you a computer scientist and don't know what an OTOC is, but want to understand the problem solved in the recent Nature paper by Google Quantum AI? We wrote a 2-page note that explains the motivation and presents a simplified version of the problem for any input size. scirate.com/arxiv/2510.1...
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Robin Kothari @robinkothari.bsky.social · 15/10/2025
Are you a PhD student in quantum computing and interested in working with our team in 2026 as a student researcher (i.e., an internship that's ~3 months and in-person at our office)? If so, apply here: www.google.com/about/career...
google.com
Student Researcher, PhD, Winter/Summer 2026 — Google Careers
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Robin Kothari @robinkothari.bsky.social · 10/10/2025
Fresh on the arXiv: @booleananalysis.bsky.social, Kewen Wu, and I present new classical algorithms for the Short Integer Solution problem (under infinity norm) that outperform the elegant Chen-Liu-Zhandry quantum algorithm, showing that there is no exponential quantum speed up anymore.
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Robin Kothari @robinkothari.bsky.social · 09/10/2025
New paper on the arXiv with David Gosset and Google student researcher Chenyi Zhang on how to implement an n-qubit Toffoli gate (approximately) with exponentially fewer T gates than previously thought. arxiv.org/abs/2510.07223 scirate.com/arxiv/2510.0...
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Robin Kothari @robinkothari.bsky.social · 06/08/2025
The QIP 2026 call for papers is out! QIP 2026 will be held in Riga, Latvia from January 24–30, 2026. See you there! qip2026.lu.lv
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Reposted by Robin Kothari
FOCS 2026 @focs2026.bsky.social · 08/07/2025
The notifications for #FOCS2025 are out: congratulations to all! The registration page is up: focs.computer.org/2025/register/ and information about student travel support will be added within days. Looking forward to seeing you in Sydney in December!
focs.computer.org
Register – FOCS 2025
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Robin Kothari @robinkothari.bsky.social · 26/04/2025
In "On the Rational Degree of Boolean Functions and Applications" with Vishnu Iyer, Siddhartha Jain (@sidjai.bsky.social), Matt Kovacs-Deak, Vinayak Kumar, Luke Schaeffer, Daochen Wang, and Michael Whitmeyer, we prove many interesting results about rational degree. arxiv.org/pdf/2310.08004
A screenshot of the title and abstract of the paper
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Reposted by Robin Kothari
FOCS 2026 @focs2026.bsky.social · 16/03/2025
The submission server for #FOCS2025 is now open! Submit your work: focs25.hotcrp.com
focs25.hotcrp.com
FOCS25
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Robin Kothari @robinkothari.bsky.social · 24/02/2025
Some #qip2025 talks this week by my excellent student coauthors: Mon 1:30pm (Kewen Wu): Quantum state preparation with optimal T-Count Mon 5pm (Alexander Schmidhuber): Quartic quantum speedups for planted inference Fri 5pm (Robbie King): Triply Efficient Shadow Tomography
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Robin Kothari @robinkothari.bsky.social · 23/12/2024
If you're an early-career faculty member (received their PhD within seven years of submission) in quantum computing, consider applying to Google's Research Scholar Program. The application process is lightweight and the grant comes in the form of an unrestricted gift. research.google/programs-and...
research.google
Research scholar program
Overview
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