Quantum error correction is a set of techniques used in quantum computing to protect quantum information from errors caused by decoherence and other quantum noise. It involves encoding quantum data in a way that allows for the detection and correction of errors, ensuring reliable computation.
Source: Conversation with Copilot, 9/28/2024
Last week, I recorded a media podcast about the current state of quantum computing. I’ll post a link to it when it is available, but today I’m discussing something that we chatted about in the prep that did not make…
What Happened? On Tuesday, August 12, 2025, Rigetti Computing announced its financial results for the Q2 2025 quarter ending June 30, 2025. See its press release for the full details. TL;DR In what is becoming a familiar pattern, the earnings…
What Happened? On Wednesday, August 6, 2025, IonQ announced its financial results for the Q2 2025 quarter ending June 30, 2025. See its press release for the full details. TL;DR CEO Niccolo de Masi is now also the Chairman of…
Today’s Brief Commentary It’s early August as I write this, and I’ve mostly been trying to take a few days off from my computer. Since Saturday, my brother-in-law and I have been replacing a wooden porch floor, and we’re almost…
Today’s Brief Commentary It’s been a very solid week of progress here in the Terran Quantum Realm, um, I mean, the global quantum industry. More than just technological progress, we have partnerships, realistic forecasts for useful quantum applications, and in-country…
Today’s Brief Commentary: I’m going out on a limb here and define “quantum utility” as “still not practical at scale for problems we care about, but seemingly going in the right direction.” I genuinely dislike its other manifestations as a…
Today’s Brief Commentary: I was in the UK last week, and although I sent out a newsletter before I left, there’s quite a bit to catch up on today. You might need a coffee and a refill to read it…
Today’s Brief Commentary: I’m heading back to the UK this weekend for meetings in Cambridge and London. In particular, I’m attending the first meeting of the Quantum Datacenter Alliance on Thursday, June 26, at the Battersea Power Station, London. The…
Today’s Brief Commentary: This major quantum financial news this last week was Infleqtion raising $100 million in its Series C funding round. Congratulations to CEO Matt Kinsella and my friends and former colleagues at the company! Speaking of investments, I’ve…
Today’s Brief Commentary: I’m back from London and the Economist Impact 4th Annual Commercialising Quantum conference. I also took a two-day mini-holiday in Liverpool to get my fill of Beatles lore and spend a lot of time on the waterfront….
Today’s Brief Commentary: I’ve been traveling in the UK this week to attend and speak at the Economist Impact 4th annual Commercialising Quantum Global 2025 conference in London. It was a great event as usual, with roughly 25% of the…
What Happened? On Monday, May 12, 2025, Rigetti Computing announced its financial results for the Q1 2025 quarter ending March 31, 2025. See its press release for the full details. It wasn’t pretty, but maybe it doesn’t need to be…
Today’s Brief Commentary: Today’s photo above is from the Quantum.Tech USA 2024 event in Washington, DC, in April. Thanks to the organizers for the image. Honestly, I thought I was smiling the whole time. It’s been a busy quantum spring…
Today’s Brief Commentary: I’m going to start today’s commentary with a quick thought I posted on LinkedIn: We don’t have a quantum computing workforce shortage. We have too many expert and talented people spread out over too many companies. I’ve…
Today’s Brief Commentary: This is a special issue of the newsletter in that instead of news articles and research papers, I’ve included several links that give the current state of quantum computing for finance. If you do a web search…
Today’s Brief Commentary: At the beginning of my talk at Quantum.Tech DC last week, I showed the above image as the bridge that quantum computing providers are trying to build and cross to give us Practical Quantum Advantage. I define…
Today’s Brief Commentary: Today’s first link in the post-quantum cryptography section is about OpenSSH adopting one of the NIST PQC standards. OpenSSH is a widely adopted open-source implementation of the Secure Shell (SSH) protocol, offering secure solutions for remote access,…
Today’s Brief Commentary: Today, we have two links to recent videocasts with me, three regarding post-quantum cryptography, and two for quantum computing. Each of the latter two categories includes variations of quantum hype. The first, from WIRED, is of the…
Today’s Brief Commentary: I’m pushing this newsletter out on a Sunday because two big industry events are coming up this week. The first is the NVIDIA GTC AI conference in San Jose, California. It runs from Monday the 17st through…
Today’s Brief Commentary: It was a busy week in the quantum realm, with IonQ releasing Q4 2024 and FY 2024 earnings and getting a new CEO, and Amazon Web Services/ CalTech announcing a cat qubit prototype quantum processing unit. I…