Diagram of a distance‑7 rotated surface code with 97 physical qubits (49 data qubits + 48 measurement qubits) modelled by the team. Grey nodes are data qubits; labeled circles are ancillas measuring X
Comparison of logical quantum resources (number of logical qubits and Toffoli gates) required to break 256-bit ECDLP for the secp256k1 curve, as reported by various prior works. Credit: Google Quantum
CavilinQ, a Cambridge-based hardware startup, has closed an $8.8 million seed funding round led by QVT, with participation from Safar Partners, MFV Partners, Serendipity Capital, and Harper Court Vent
QuiX Quantum, in collaboration with NASA’s Quantum Artificial Intelligence Laboratory, the University of Twente, and Freie Universität Berlin, has demonstrated "below-threshold" error mitigation on a
QuEra Computing has released Tsim, an open-source, GPU-accelerated quantum circuit simulator designed to model non-Clifford gate operations. The tool addresses a technical gap in the development of qu
Quanscient and Haiqu have announced a new quantum algorithm designed to accelerate Computational Fluid Dynamics (CFD) simulations. The researchers successfully executed a 15-step nonlinear fluid bench
For those of you who haven’t seen, there were actually two “bombshell” QC announcements this week. One, from Caltech, including friend-of-the-blog John Preskill, showed how to do quantum fault-t
Quantum Computing Inc. (QCi) has installed its Dirac-3 quantum optimization machine at the Digital Crossroad Data Center in Hammond, Indiana. This deployment marks the first installation of the Dirac-
EPB has joined the Southeastern Quantum Collaborative (SQC) as an inaugural member. Led by the University of Alabama in Huntsville (UAH), the SQC is a regional association of academic, industrial, and
Alice & Bob, in collaboration with Los Alamos National Laboratory and GE Vernova, has been awarded $3.9 million from the U.S. Department of Energy’s ARPA-E Quantum Computing for Computational Chem
Monarch Quantum has closed a $55 million growth round led by Serendipity Capital, with participation from 55 North and Global Innovation Labs. This financing brings the company’s total capital and cus
Yesterday Dana, the kids, and I went to the theater to watch The AI Doc: Or How I Became An Apocaloptimist, the well-reviewed new documentary about whether AGI will destroy the world. This was surely
Last summer, I was privileged to teach a two-week course on theoretical computer science to exceptional 11- and 12-year-olds at Epsilon Camp, held at Washington University in St. Louis. The course was
I’m on a spring break vacation-plus-lecture-tour with Dana and the kids in Mexico City this week, and wasn’t planning to blog, but I see that I need to make an exception. Charles Bennett a
Scott’s foreword: I’ve known fellow quantum computing theorist Daniel Gottesman, now at the University of Maryland, for a quarter-century at this point. Daniel has been a friend, colleague
Recently, my coworkers and I put out a preprint “Classical solution of the FeMo-cofactor model to chemical accuracy and its implications’’ (Zhai et al. 2026). It is a bit unusual to write comment
It’s happening. Your inbox registers an email from the chair of a faculty-hiring committee. With trembling fingers, you click on the message. “We were very impressed…we’re delighted to offer…” M
Last Thursday, my friend and colleague Sam Baker, in UT Austin’s English department, convened an “emergency panel” here about the developing Pentagon/Anthropic situation, and asked m
Sorry to interrupt your regular programming about the AI apocalypse, etc., and return to the traditional beat of this blog’s very earliest years … but I’ve now gotten multiple messag
To start on a somber note: those of us at UT Austin are in mourning this week for Savitha Shan, an undergrad double major here in economics and information systems, who was murdered over the weekend b
We are now at an exciting point in our process of developing quantum computers and understanding their computational power: It has been demonstrated that quantum computers can outperform classical one
I don’t have time to write a full post right now, but hopefully this is self-explanatory. Regardless of their broader views on the AI industry, the eventual risks from AI, or American politics,
The STOC’2026 accepted papers list is out. It seems to me that there’s an emperor’s bounty of amazing stuff this year. I felt especially gratified to see the paper on the determinati
My husband and I visited the Library of Congress on the final day of winter break this year. In a corner, we found a facsimile of a hand-drawn map: the world as viewed by sixteenth-century Europeans.
My top 10 ghosts (solo acts and ensembles). If Bruce Willis being a ghost in The Sixth Sense is a spoiler, that’s on you — the movie has been out for 26 years. Einstein and I have both been spoo
Welcome back to: Has quantum advantage been achieved? In Part 1 of this mini-series on quantum advantage demonstrations, I told you about the idea of random circuit sampling (RCS) and the experimental
The field of quantum computing has advanced beyond the level of error-prone physical qubits to an era of reliable quantum computation with logical qubits. To continue making progress toward fault-tole
Recently, I gave a couple of perspective talks on quantum advantage, one at the annual retreat of the CIQC and one at a recent KITP programme. I started off by polling the audience on who believed qua
Snow is haunting weather forecasts, home owners are taking down Christmas lights, stores are discounting exercise equipment, and faculty-hiring committees are winnowing down applications. In-person in
On December 10, I gave a keynote address at the Q2B 2025 Conference in Silicon Valley. This is a transcript of my remarks. The slides I presented are here. The video is here. The first century We are
During the spring of 2022, I felt as though I kept dashing backward and forward in time. At the beginning of the season, hay fever plagued me in Maryland. Then, I left to present talks in southe
Quantum computing promises transformative advancements, yet it also poses a very real risk to today’s cryptographic security. In the future scalable quantum computing could break public-key cryptograp
Microsoft Quantum is continuing to advance the global quantum ecosystem by adding cutting-edge features to its compute platform. By developing powerful error-correction codes that are applicable to ma
We are announcing a new enterprise agentic platform called Microsoft Discovery to accelerate research and development (R&D) at Microsoft Build 2025.Our goal is to bring the power of AI to scientis
Built with a breakthrough class of materials called a topoconductor, Majorana 1 marks a transformative leap toward practical quantum computing. Quantum computers promise to transform science and socie
We find ourselves in an exciting and pivotal time. We are at the advent of the reliable quantum computing era. This past November, Microsoft successfully created and entangled 24 logical qubits in col
Azure Elements Purpose built to accelerate scientific discovery Microsoft and Atom Computing have made rapid progress in reliable quantum computing by creating and entangling 24 logical qubits made fr
Microsoft and Quantinuum applied Azure Quantum’s qubit-virtualization system to Quantinuum’s H2 trapped-ion quantum computer to create 12 highly reliable logical qubits. Additionally, the teams demons
Azure Quantum Elements is making research in chemistry and materials science faster, easier, and more productive by integrating new tools based on generative AI and high-performance computing. M
Photonic executed a teleported CNOT gate between physically separated silicon spin qubits, thus satisfying the first requirement of long-distance quantum communication. In November 2023, Microsoft and
That’s right, folks—we’re saying goodbye to our longtime home here on Medium.com. Check our new space at ibm.com/quantum/blog for all future Qiskit blogs.The Qiskit team has spent over seven years bui
By Abby Mitchell, Jake Lishman, Luciano Bello, Matthew Treinish & Blake JohnsonQiskit 1.0 will be released in February 2024 🎉This is a huge milestone, the culmination of six years of open-source e
By Maria Violaris, PhD student at the University of OxfordTraveling backwards and forwards in time is a common trope that appears often in science fiction. However, as we enter the holiday season, I f
In recent months, the Qiskit Ecosystem has undergone a series of changes, additions, migrations, and upgrades all driven by a common goal: to provide the community with a greater role in the developme
By Jay ShahThe Bloch sphere is one of the most popular and recognizable tools for helping new learners understand quantum computing fundamentals. Now, there’s a Qiskit Ecosystem project that helps use
By Abby Mitchell, Luciano Bello, Matthew Treinish, Jake LishmanWe’re excited to announce the release of Qiskit v0.45! Read on for a summary of the key highlights and, as always, you can find the full
By Zhiding Liang, Jinglei Cheng, and Hanrui WangThe world of quantum computing is always evolving. Researchers and scientists are constantly pushing the boundaries, looking for ways to improve the met
By Maria Violaris, PhD student at the University of OxfordCan a cat be dead and alive at the same time? In 1935, quantum physicist Erwin Schrödinger came up with a thought experiment showing that, acc
Today, we’re announcing important changes to Qiskit.org that you should be aware of. Starting on November 29, 2023, Qiskit Documentation and Qiskit educational resources will live on IBM Quantum Platf
By Robert Davis, Julien Gacon, Abby Mitchell, and Luciano BelloWhen it comes to quantum circuits, sometimes the “do it yourself” approach is best. Even for common subroutines like the quantum Fourier