Computational Quantum Physicist - EPFL Lausanne, Switzerland https://bsky.app/profile/gppcarleo.bsky.socialhttps://bsky.app/profile/gppcarleo.bsky.social/post/3lzq3hgqw722tI have a new opening for several funded PHD positions in my group (the Computational Quantum Science Lab, at EPFL). If you are a talented, motivated student, please apply here https://www.epfl.ch/labs/cqsl/job-opportunities-at-cqsl/. I am especially looking to hire in scientific ML applications/NQS; not in quantum computing.26 Sep 2025 08:48 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lzq3hgqw722thttps://bsky.app/profile/gppcarleo.bsky.social/post/3lzg3urh5gk24Or you can go here https://neos-server.org/neos/solvers/co:concorde/TSP.html and wait about 0.02 seconds for the problem to be solved exactly 😂 [contains quote post or other embedded content]22 Sep 2025 09:29 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lzg3urh5gk24https://bsky.app/profile/gppcarleo.bsky.social/post/3lxekgpo56s2kI am looking for a talented postdoc to join my group at EPFL, in Lausanne, Switzerland. Goal is to develop and apply state-of-the-art neural quantum states for electronic structure and related applications. Position to be filled soon, excellent conditions! Apply here: https://www.epfl.ch/labs/cqsl/job-opportunities-at-cqsl/27 Aug 2025 07:54 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lxekgpo56s2khttps://bsky.app/profile/gppcarleo.bsky.social/post/3ltygi5ntxc2mNew work with Douglas Hendry and Alessandro Sinibaldi: Grassmann Variational Monte Calro with neural wave functions arxiv.org/abs/2507.10287 This is a formalization and an extension (e.g. natural gradient descent-wise) of the nice excited-state framework for VMC developed by @davidpfau.com et al. https://arxiv.org/abs/2507.1028715 Jul 2025 07:56 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3ltygi5ntxc2mhttps://bsky.app/profile/gppcarleo.bsky.social/post/3lozzq4w2ms2mCongrats Samuele for this nice work, it was a fun collaboration with IBM Zurich! [contains quote post or other embedded content]13 May 2025 08:07 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lozzq4w2ms2mhttps://bsky.app/profile/gppcarleo.bsky.social/post/3lnzjijmivc2yPaper alert, this time on response functions obtained inverting the Lorentz Integral Transform, especially useful when there is an unbounded spectrum: "Nuclear responses with neural-network quantum states" arxiv.org/abs/2504.20195 https://arxiv.org/abs/2504.2019530 Apr 2025 09:51 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lnzjijmivc2yhttps://bsky.app/profile/gppcarleo.bsky.social/post/3lmjo25l5gs2eAb-initio preprint: we study high-pressure hydrogen over a relatively large range of pressures and temperatures (in the Born-Opp. approx.). Crucially, we do it with a **single** wave function for all values of proton configurations. Effort led by my PHD David Linteau, arxiv.org/abs/2504.07062 (1/2) https://arxiv.org/abs/2504.0706211 Apr 2025 09:05 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lmjo25l5gs2ehttps://bsky.app/profile/gppcarleo.bsky.social/post/3lkscnnmuss2q​Excited to share our latest quantum chemistry preprint led by Clemens Giuliani. We employ a "simple" variational wavefunction composed of a few hundred optimized non-orthogonal Slater determinants, achieving energy accuracies comparable to state-of-the-art methods. arxiv.org/abs/2503.14502 1/5​20 Mar 2025 08:45 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lkscnnmuss2qhttps://bsky.app/profile/gppcarleo.bsky.social/post/3lksbk23iac2bAt #APS2025, our lab presented 8 innovative studies spanning quantum-classical hybrid simulations, neural-network quantum states, quantum dynamics, and quantum chemistry. Read the highlights of our contributions here! https://actu.epfl.ch/news/computational-quantum-science-lab-at-the-aps-globa/ #APSsummit https://actu.epfl.ch/news/computational-quantum-science-lab-at-the-aps-globa/#QuantumPhysics20 Mar 2025 08:25 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lksbk23iac2bhttps://bsky.app/profile/gppcarleo.bsky.social/post/3lkbt4kl5hk2tIf it wasn't clear enough already that I have nothing against the results of Dwave, and others, read this: https://www.scientificamerican.com/article/are-d-waves-claims-of-quantum-advantage-just-quantum-hype/ The problem is not the results, it's the way they are presented, and how they are perceived more broadly. (1/2)13 Mar 2025 19:24 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lkbt4kl5hk2thttps://bsky.app/profile/gppcarleo.bsky.social/post/3lk6bhpc6nk2eWe provide a classical simulation of DWave quantum "s-word" paper. Here it is arxiv.org/abs/2503.08247 , great work by Linda Mauron at the CQS Lab, check it out! (1/4) https://arxiv.org/abs/2503.0824712 Mar 2025 09:30 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lk6bhpc6nk2ehttps://bsky.app/profile/gppcarleo.bsky.social/post/3liof5tkeqk2tSpot the problem(s): you have a numerical technique A for quantum systems that is not variational, you apply it to system X, then compare it to a variational method B previously applied to system Y and you extrapolate it to X. Then, you claim that method B has lower energies than A!21 Feb 2025 08:28 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3liof5tkeqk2thttps://bsky.app/profile/gppcarleo.bsky.social/post/3liekpk4ggc2sThe magic 🪄 of Neural Quantum states, our paper : arxiv.org/abs/2502.09725 We introduce two general strategies to compute stabilizer Renyi entropies with NQS/ variational Monte Carlo. Magic is one of the measures often used to quantify how hard it is to classically simulate a quantum system. (1/4) https://arxiv.org/abs/2502.0972517 Feb 2025 10:41 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3liekpk4ggc2shttps://bsky.app/profile/gppcarleo.bsky.social/post/3li4r6dvkoc2uOur work on Foundation Neural Quantum States finally out: arxiv.org/abs/2502.09488. These are generalized NQS that work for many hamiltonians: think of a general solver working for many ground-state problems! Pre-trained models ready for fine tuning are available here huggingface.co/nqs-models (1/5) https://arxiv.org/abs/2502.0948814 Feb 2025 08:15 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3li4r6dvkoc2uhttps://bsky.app/profile/gppcarleo.bsky.social/post/3lgpvhv7fp22zLooking for a talented postdoc to join my group (the Computational Quantum Science Lab) at EPFL, in Lausanne 🇨🇭 Research Topics Include: Neural Quantum States, Many-Body Systems, Ab-Initio & Quantum Chemistry...etc Start: Fall 2025, excellent conditions Apply: https://www.epfl.ch/labs/cqsl/job-opportunities-at-cqsl/27 Jan 2025 12:03 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lgpvhv7fp22zhttps://bsky.app/profile/gppcarleo.bsky.social/post/3lfnlfimvgs2zFor the french-speaking friends: an article in @lemonde.fr "AI versus quantum computing : a very physical fight!" also featuring excerpts from an interview I had with David Larousserie https://www.lemonde.fr/sciences/article/2025/01/13/ia-versus-ordinateur-quantique-un-combat-tres-physique_6496145_1650684.html13 Jan 2025 20:32 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lfnlfimvgs2zhttps://bsky.app/profile/gppcarleo.bsky.social/post/3ldj6vfb4zk2vI was thinking about compiling something similar, luckily somebody already did it ! would be nice to keep it up to date somewhere online. "Hey Claude please do a website out of this table" [contains quote post or other embedded content]17 Dec 2024 15:47 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3ldj6vfb4zk2vhttps://bsky.app/profile/gppcarleo.bsky.social/post/3ldihtfltmk2k(1/n) Excited to finally share our new paper to study quantum dynamics with neural quantum states: "Time-dependent Neural Galerkin Method for Quantum Dynamics" with A Sinibaldi, @philipvinc.bsky.social and D Hendry. arxiv.org/pdf/2412.11778 https://arxiv.org/pdf/2412.1177817 Dec 2024 08:54 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3ldihtfltmk2khttps://bsky.app/profile/gppcarleo.bsky.social/post/3ldgc4ksmdc2gIt's the second time in less than a week that an @arxiv-quant-ph.bsky.social submission from my group is placed on hold. Never happened to me before, what's going on?16 Dec 2024 12:07 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3ldgc4ksmdc2ghttps://bsky.app/profile/gppcarleo.bsky.social/post/3ld6gcp7bec2pNew Paper arxiv.org/pdf/2412.05332 1/2 Neural quantum states reveal phase transitions in 2D helium-4. At small scales (30 atoms), found continuous transition with signatures of hexatic order - a phase with orientational but no translational symmetry. Larger systems show sharp liquid-solid transition https://arxiv.org/pdf/2412.0533213 Dec 2024 09:00 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3ld6gcp7bec2phttps://bsky.app/profile/gppcarleo.bsky.social/post/3lcxxqgv2dk2kwhy so? it's 10^25 years to simulate it classically! 😂 [contains quote post or other embedded content]10 Dec 2024 19:24 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lcxxqgv2dk2khttps://bsky.app/profile/gppcarleo.bsky.social/post/3lciispjyns2mGreat EPFL endeavor coordinated by @abosselut.bsky.social, we did our small part in this providing data for quantum physics exams [contains quote post or other embedded content]04 Dec 2024 15:47 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lciispjyns2mhttps://bsky.app/profile/gppcarleo.bsky.social/post/3lbxbzpjb7s2eA video by @hossenfelder.bsky.social about how advances in ML for quantum systems are "competing" with quantum computing, featuring Demis Hassabis and our variational benchmarks work recently appeared in @science.org : https://m.youtube.com/watch?v=MO6ZvA7U3F027 Nov 2024 19:30 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lbxbzpjb7s2ehttps://bsky.app/profile/gppcarleo.bsky.social/post/3lbptckjnts2aHi there Bluesky! for those of you who don't know me, an image is worth 300 characters: (main keywords in my publications, courtesy of Scholar Goggler)24 Nov 2024 20:18 +0000at://did:plc:wmpolphnw5r2fdkmalht7rmh/app.bsky.feed.post/3lbptckjnts2a