David Jennings
@davidbjennings.bsky.social
Quantum Information Theorist. PsiQuantum, University of Leeds. Opinions my own.
Reposted by David Jennings
Hi #quantum bluesky 👋 In arxiv.org/abs/2503.20870 with #Quantinuum, Fermioniq, Caltech, EPFL, TUM we show Quantinuum's H2 ion-trap #quantumcomputer can simulate dynamical evolution of a 2D Ising model at late times and sizes pushing beyond classical means(MPS, PEPS, sparse Pauli propagation, NN).
Digital quantum magnetism at the frontier of classical simulations
The utility of near-term quantum computers for simulating realistic quantum systems hinges on the stability of digital quantum matter--realized when discrete quantum gates approximate continuous time ...
arxiv.org
March 30, 2025 at 10:37 PM
Hi #quantum bluesky 👋 In arxiv.org/abs/2503.20870 with #Quantinuum, Fermioniq, Caltech, EPFL, TUM we show Quantinuum's H2 ion-trap #quantumcomputer can simulate dynamical evolution of a 2D Ising model at late times and sizes pushing beyond classical means(MPS, PEPS, sparse Pauli propagation, NN).
Reposted by David Jennings
This is part of DESI's recently released map of our universe. Each snowflake in this blizzard is a galaxy. Not sure if it's terrifying or comforting, but it's definitely jawdropping! More videos at noirlab.edu/public/video... 🌌⚛️ 🧪
March 20, 2025 at 10:56 PM
This is part of DESI's recently released map of our universe. Each snowflake in this blizzard is a galaxy. Not sure if it's terrifying or comforting, but it's definitely jawdropping! More videos at noirlab.edu/public/video... 🌌⚛️ 🧪
Reposted by David Jennings
Love this picture of Mike and Ike after finishing their book. Ike gave a great talk about the early days of quantum computing, may each of you find yourself in such an era of joy and discovery.
March 21, 2025 at 3:28 AM
Love this picture of Mike and Ike after finishing their book. Ike gave a great talk about the early days of quantum computing, may each of you find yourself in such an era of joy and discovery.
Reposted by David Jennings
The most viewed thing I've ever made is a short about two colliding blocks computing π. I just made a new edition of the explanation for why π shows up there, setting things up for a (coming soon) follow-on connecting it to quantum computing.
youtu.be/6dTyOl1fmDo
youtu.be/6dTyOl1fmDo
There's more to those colliding blocks computing pi
YouTube video by 3Blue1Brown
youtu.be
March 13, 2025 at 3:46 PM
The most viewed thing I've ever made is a short about two colliding blocks computing π. I just made a new edition of the explanation for why π shows up there, setting things up for a (coming soon) follow-on connecting it to quantum computing.
youtu.be/6dTyOl1fmDo
youtu.be/6dTyOl1fmDo
Reposted by David Jennings
Physicists are drawing a firmer boundary than ever before between what is knowable and unknowable about our universe. @walkingthedot.bsky.social reports: www.quantamagazine.org/next-level-c...
‘Next-Level’ Chaos Traces the True Limit of Predictability | Quanta Magazine
In math and computer science, researchers have long understood that some questions are fundamentally unanswerable. Now physicists are exploring how even ordinary physical systems put hard limits on wh...
www.quantamagazine.org
March 7, 2025 at 2:44 PM
Physicists are drawing a firmer boundary than ever before between what is knowable and unknowable about our universe. @walkingthedot.bsky.social reports: www.quantamagazine.org/next-level-c...
Reposted by David Jennings
"For validation purposes of everything we're saying, [we need to be] in the presence of experts. [...] The criterion for being an expert is that you have connected to this call. That's the criterion. [...] We need 100 experts because that's what Microsoft used in their press releases." Sergey Frolov
March 1, 2025 at 6:51 AM
"For validation purposes of everything we're saying, [we need to be] in the presence of experts. [...] The criterion for being an expert is that you have connected to this call. That's the criterion. [...] We need 100 experts because that's what Microsoft used in their press releases." Sergey Frolov
Reposted by David Jennings
I have been encouraged to publish my talk at Q2B 2024. It's @arxiv-quant-ph.bsky.social today.
arxiv.org/abs/2502.17368
arxiv.org/abs/2502.17368
Beyond NISQ: The Megaquop Machine
Today's Noisy Intermediate-Scale Quantum (NISQ) computers have scientific value, but quantum machines with broad practical value must be protected against noise using quantum error correction and faul...
arxiv.org
February 25, 2025 at 12:48 PM
I have been encouraged to publish my talk at Q2B 2024. It's @arxiv-quant-ph.bsky.social today.
arxiv.org/abs/2502.17368
arxiv.org/abs/2502.17368