Thinking about Quantum information at Freie Universität Berlin antonioannamele.comhttps://bsky.app/profile/antonioannamele.bsky.socialhttps://bsky.app/profile/antonioannamele.bsky.social/post/3m7t35l3xxk27New paper on the arXiv arxiv.org/abs/2512.10214 with my totally amazing coauthor Lennart Bittel! We solve a fundamental open question in quantum information theory and tomography: What is the optimal (query) complexity of quantum process tomography?12 Dec 2025 21:52 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3m7t35l3xxk27https://bsky.app/profile/antonioannamele.bsky.social/post/3m6k7mr4dk22uSuper happy to share that our paper "Learning quantum states of continuous-variable systems" has been published in Nature Physics 🎉 https://www.nature.com/articles/s41567-025-03086-226 Nov 2025 15:53 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3m6k7mr4dk22uhttps://bsky.app/profile/antonioannamele.bsky.social/post/3m53zxa3rus2mSuper happy to see that two of our papers were accepted as talks at QIP 2026 🎉 - A complete theory of the Clifford commutant arxiv.org/abs/2504.12263. - Efficient learning of bosonic Gaussian unitaries arxiv.org/abs/2510.05531. https://arxiv.org/abs/2504.1226308 Nov 2025 07:09 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3m53zxa3rus2mhttps://bsky.app/profile/antonioannamele.bsky.social/post/3m3xs7nn2j22tI’m super happy to share that I have been awarded the 2025 Google PhD Fellowship -- announced yesterday at https://blog.google/outreach-initiatives/google-org/phd-fellowship-program-2025/ 🥳 The fellowship “recognizes outstanding graduate students doing exceptional and innovative research in areas relevant to computer science and related fields.”24 Oct 2025 21:15 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3m3xs7nn2j22thttps://bsky.app/profile/antonioannamele.bsky.social/post/3m2omzyyec226Super happy to share our new preprint today on ArXiv: 🥳 arxiv.org/pdf/2510.05531 It’s about efficient learning of bosonic Gaussian unitaries with provable recovery guarantees in a physically motivated accuracy metric: the "energy-constrained diamond-norm".08 Oct 2025 12:23 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3m2omzyyec226https://bsky.app/profile/antonioannamele.bsky.social/post/3lsqydt3t6c2cJust had the chance to spend a wonderful week in Florence, attending the “Understanding Quantum Machine Learning” workshop https://ggi.infn.it/showevent.pl?id=523 organized by Leonardo Banchi, Giacomo De Palma, Anderson M. Hernandez & Dario Trevisan, at the charming Galileo Galilei Institute. 🇮🇹29 Jun 2025 15:29 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3lsqydt3t6c2chttps://bsky.app/profile/antonioannamele.bsky.social/post/3lsh4zubbcc2fSuper happy to see our beautiful work out — led by the amazing Los Alamos team — now on arXiv: “Characterizing Quantum Resourcefulness via Group-Fourier Decompositions” lnkd.in/dQWhG4my. Check out Marco’s great summary! [contains quote post or other embedded content]25 Jun 2025 17:26 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3lsh4zubbcc2fhttps://bsky.app/profile/antonioannamele.bsky.social/post/3lnqcox27ek22Glad to see our Clifford commutant paper accepted as a talk at TQC 2025 happening later this year in India! 🥳 [contains quote post or other embedded content]26 Apr 2025 17:55 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3lnqcox27ek22https://bsky.app/profile/antonioannamele.bsky.social/post/3lmzseqmix22b🧵 Super excited to finally share our new paper 🎉 Together with the dream team- Lennart Bittel, @jenseisert.bsky.social, Lorenzo Leone, @sfeoliviero.bsky.social - we present a full theory of the Clifford commutant ⚡, a central object in quantum information. ⚛️ 📄 arxiv.org/abs/2504.12263 https://arxiv.org/abs/2504.1226317 Apr 2025 19:05 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3lmzseqmix22bhttps://bsky.app/profile/antonioannamele.bsky.social/post/3lmwx5s364k27I'm super happy to see this paper out on ArXiv today: arxiv.org/abs/2504.11318 by @vishnu-psiyer.bsky.social, presenting a quantum algorithm to learn t-doped fermionic Gaussian unitaries. This work solves one of the open questions we raised in our previous paper: https://journals.aps.org/prxquantum/abstract/10.1103/PRXQuantum.6.010319. https://arxiv.org/abs/2504.1131816 Apr 2025 15:52 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3lmwx5s364k27https://bsky.app/profile/antonioannamele.bsky.social/post/3lksyuhamjs2tHappy to announce that our paper is now published in @quantum-journal.bsky.social . We show that deciding whether a given dataset, formed by a few Majorana correlation functions estimates, can be consistent with a free-fermionic state is an NP-complete problem. https://quantum-journal.org/papers/q-2025-03-20-1665/20 Mar 2025 15:22 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3lksyuhamjs2thttps://bsky.app/profile/antonioannamele.bsky.social/post/3lgtayfnvbk2lSuper happy to see our work "Efficient learning of quantum states prepared with few fermionic non-Gaussian gates" now published in PRX Quantum. ⚛️ 🥳 Huge thanks to my incredible coauthor Yaroslav Herasymenko for the fun collaboration! 🚀 Catch our talk at #QIP2025 to learn more! https://journals.aps.org/prxquantum/abstract/10.1103/PRXQuantum.6.01031928 Jan 2025 20:07 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3lgtayfnvbk2lhttps://bsky.app/profile/antonioannamele.bsky.social/post/3lgjn5s6syk2mCheck out the great Bluesky-thread by Armando about our recent work. ⚛️ We show that ‘typical’ noisy circuits can be efficiently simulated classically for any local noise and circuit architecture — in contrast to fault-tolerantly designed noisy circuits. ⚡️ [contains quote post or other embedded content]25 Jan 2025 00:18 +0000at://did:plc:d2tdpifs2y4y3lsof7tjpjgf/app.bsky.feed.post/3lgjn5s6syk2m