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Updated version of Joey Tindall’s simulation of IBM’s kicked Ising experiment. More detailed extrapolations, time traces, and comparisons to MPS shows belief propagation is a surprisingly accurate approximation of the dynamics: arxiv.org/abs/2306.14887

Pleased to say our paper is now published in SciPost: scipost.org/SciPostPhys.15…! We develop a brand-new, efficient algorithm for gauging tensor networks (TNs) with belief propagation (BP). We also unify a number of other TN methods into the BP framework Flatiron CCQ

Thermodynamic limit of spin systems on random graphs, Amy Searle and Joseph Tindall Amy Searle Joey Tindall Flatiron CCQ #Networks #StatisticalPhysics go.aps.org/3TQSPg7

Mine and Joey Tindall 's work "Thermodynamic Limit of Spins on Random Graphs" has been published in Physical Review Research! journals.aps.org/prresearch/abs…

Improved classical methods for Hamiltonian simulation further shift the threshold for quantum utility. Joey Tindall, Miles Stoudenmire, Flatiron CCQ Article: go.aps.org/47GZugg Research News: go.aps.org/3vMEEyG

New preprint arxiv.org/abs/2402.01558, studying the emergence of confinement in a quenched hexagonal Ising model. Our results offer a physical explanation for the ease with which classical methods performed the IBM Eagle quantum simulation: nature.com/articles/s4158… Flatiron CCQ

meetings.aps.org/Meeting/MAR24/… I will give APS talk next Monday! I will provide another classical simulation of IBM heavy-hex for longer time(40 Trotter steps) in the hard regime (theta=10pi/32) with space-time tensor network influence functional approach

Even if I don't agree with the `supremacy` terminology and claim in D-Wave's recent paper: arxiv.org/abs/2403.00910…, the results and benchmarking are impressive and insightful. But with posts like this one here, it's hard to take the company seriously...

Tomorrow I will give my talk at #APSMarch on "Confinement and an efficient tensor network simulation of IBM’s kicked Ising experiment". Come and find out the interesting Physics behind why we were able to simulate this experiment Flatiron CCQ Miles Stoudenmire. Room 200H at 1.30pm.

Scott Aaronson explains the hammer of quantum hype at the #apsmarch meeting. Every quantum company should print these two simple rules on a big poster and hang it in their office (or tattoo them on their CEO's forehead).

1/ Thrilled to share our new results : we perform chemistry calculations on problem sizes beyond exact diagonalizations using our Heron processor assisted by the Fugaku supercomputer. arxiv.org/abs/2405.05068

For those of you at #JuliaCon2024 I will shortly be talking (4pm CEST, Room 4.1, Quantum Mini) about the tensor network/ quantum simulation package github.com/ITensor/ITenso… we are developing Flatiron CCQ . The talk will also be live on YouTube: youtube.com/watch?v=v0RPD4… (10am EST)

Today marks the 7th anniversary of the Flatiron Institute! Since our inauguration in 2017, the institute has been working on complex problems in computational science, from astrophysics to biology and quantum physics. Read more about our latest research: simonsfoundation.org/flatiron/news

New paper out today w/ Joey Tindall & Miles Stoudenmire looking at compressing multivariate functions with tree tensor networks arxiv.org/abs/2410.03572 1/n

New research from #FlatironCCQ has figured out why a classical computer could solve a complex problem some thought only a quantum computer could do. The results provide new insights into quantum dynamics: simonsfoundation.org/2024/10/29/the… #science #quantumphysics

Our work on the emergence of confinement in the dynamics of a 2D Ising model has just been published journals.aps.org/prl/abstract/1…! This phenomena occurred in IBM's quantum experiment last year and helps explain why so many classical methods could simulate it: simonsfoundation.org/2024/10/29/the…

🚨 Our new paper uncovers time crystals in decorated lattices. We reveal their exponential lifetime and bipartite rigidity against perturbations. This leads to a rich phase diagram tied to the lattice topology. 📖 arxiv.org/abs/2411.00651 🔬✨ #TimeCrystals #TensorNetworks

In a new preprint arxiv.org/abs/2503.05693, led by Joseph Tindall & Antonio Mello at CCQ, we simulate annealing of disordered quantum magnets 🧲and in many cases find better accuracy than recent results from D-Wave devices and leading classical methods (arxiv.org/abs/2403.00910).