Antonio Anna Mele
@antonioannamele.bsky.social
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Thinking about Quantum information at Freie Universität Berlin antonioannamele.com
New 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?
about 1 month ago
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Super happy to share that our paper "Learning quantum states of continuous-variable systems" has been published in Nature Physics 🎉
www.nature.com/articles/s41...
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Learning quantum states of continuous-variable systems - Nature Physics
Finding a classical description of a quantum state can require resource-intensive tomography protocols. It has now been shown that, for bosonic systems, tomography is extremely inefficient in general,...
https://www.nature.com/articles/s41567-025-03086-2
about 2 months ago
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reposted by
Antonio Anna Mele
Marco Cerezo
2 months ago
Just a friendly reminder that there are currently two ads for postdocs at Los Alamos National Laboratory: Quantum Simulations of fermionic systems apply here:
lanl.jobs/search/jobde...
Quantum Simulations for nuclear physics apply here:
lanl.jobs/search/jobde...
Shares appreciated
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Quantum Computing and Early Fault-Tolerant Simulations at Los Alamos National Laboratory
Los Alamos National Laboratory is Hiring! Search available jobs or submit your resume now by visiting this link. Please share with anyone you feel would be a great fit.
https://lanl.jobs/search/jobdetails/quantum-computing-and-early-fault-tolerant-simulations/bc5ad0a4-12e4-4ff7-a781-e7184c1e4694
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Super 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
.
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A complete theory of the Clifford commutant
The Clifford group plays a central role in quantum information science. It is the building block for many error-correcting schemes and matches the first three moments of the Haar measure over the unit...
https://arxiv.org/abs/2504.12263
2 months ago
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reposted by
Antonio Anna Mele
Dulwich Quantum Computing
2 months ago
The only thing that could possibly be hotter than Italian twins explaining entanglement in Italian is Italian triplets explaining the GHZ state.
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I’m super happy to share that I have been awarded the 2025 Google PhD Fellowship -- announced yesterday at
blog.google/outreach-ini...
🥳 The fellowship “recognizes outstanding graduate students doing exceptional and innovative research in areas relevant to computer science and related fields.”
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Announcing the 2025 Google PhD Fellows
Today, we are announcing the recipients of the 2025 Google PhD Fellowship Program.
https://blog.google/outreach-initiatives/google-org/phd-fellowship-program-2025/
3 months ago
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Super 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".
3 months ago
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reposted by
Antonio Anna Mele
Francesco Anna Mele
3 months ago
The saga of *quantum learning theory with CV systems* never ends! And indeed, when you look closely at this field, many natural and promising questions arise. For instance: How to learn CV Gaussian unitaries?
arxiv.org/pdf/2510.05531
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reposted by
Antonio Anna Mele
Marco Cerezo
6 months ago
We recently posted 2 works on quantum resource theories:
arxiv.org/abs/2506.19696
,
arxiv.org/abs/2507.10851
👂Huh? Yall want more? We got you covered with a NEW work Analyzing the free states of one quantum resource theory as resource states of another
arxiv.org/abs/2507.11793
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Characterizing quantum resourcefulness via group-Fourier decompositions
In this work we present a general framework for studying the resourcefulness in pure states for quantum resource theories (QRTs) whose free operations arise from the unitary representation of a group....
https://arxiv.org/abs/2506.19696
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reposted by
Antonio Anna Mele
Nahuel L Diaz
6 months ago
New work on Quantum resource theories!
arxiv.org/abs/2507.10851
A big thanks to my collaborators
@antonioannamele.bsky.social
Pablo Bermejo Paolo Braccia Andrew Deneris
@martinlaroo.bsky.social
and
[email protected]
We provide a unifying framework leading to new free operations 🧵⬇️
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A unified approach to quantum resource theories and a new class of free operations
In quantum resource theories (QRTs) certain quantum states and operations are deemed more valuable than others. While the determination of the ``free'' elements is usually guided by the constraints of...
https://arxiv.org/abs/2507.10851
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Just had the chance to spend a wonderful week in Florence, attending the “Understanding Quantum Machine Learning” workshop
ggi.infn.it/showevent.pl...
organized by Leonardo Banchi, Giacomo De Palma, Anderson M. Hernandez & Dario Trevisan, at the charming Galileo Galilei Institute. 🇮🇹
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https://ggi.infn.it/showevent.pl?id=523
7 months ago
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Super 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!
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7 months ago
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Glad to see our Clifford commutant paper accepted as a talk at TQC 2025 happening later this year in India! 🥳
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9 months ago
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reposted by
Antonio Anna Mele
Jens Eisert
9 months ago
A complete theory of the Clifford commutant
scirate.com/arxiv/2504.1...
The Clifford group is ubiquitous in quantum information science, with applications in benchmarking, quantum error correction and learning algorithms. Understanding which operators commute with is a powerful tool.
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🧵 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
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A complete theory of the Clifford commutant
The Clifford group plays a central role in quantum information science. It is the building block for many error-correcting schemes and matches the first three moments of the Haar measure over the unit...
https://arxiv.org/abs/2504.12263
9 months ago
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reposted by
Antonio Anna Mele
Vishnu Iyer
9 months ago
I'm excited to share a new preprint about learning unitary operators of mildly-interacting fermions!
arxiv.org/abs/2504.11318
@antonioannamele.bsky.social
posed this very interesting question to me and I'm glad to have made progress towards it.
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Mildly-Interacting Fermionic Unitaries are Efficiently Learnable
Recent work has shown that one can efficiently learn fermionic Gaussian unitaries, also commonly known as nearest-neighbor matchcircuits or non-interacting fermionic unitaries. However, one could ask ...
https://arxiv.org/abs/2504.11318
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I'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:
journals.aps.org/prxquantum/a...
.
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Mildly-Interacting Fermionic Unitaries are Efficiently Learnable
Recent work has shown that one can efficiently learn fermionic Gaussian unitaries, also commonly known as nearest-neighbor matchcircuits or non-interacting fermionic unitaries. However, one could ask ...
https://arxiv.org/abs/2504.11318
9 months ago
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Happy 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.
quantum-journal.org/papers/q-202...
10 months ago
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Super 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!
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Efficient Learning of Quantum States Prepared With Few Fermionic Non-Gaussian Gates
A novel tomography algorithm with provably optimal run-time can uncover fundamental properties of a broad class of states and provide efficient circuit compilation.
https://journals.aps.org/prxquantum/abstract/10.1103/PRXQuantum.6.010319
12 months ago
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Check 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. ⚡️
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12 months ago
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reposted by
Antonio Anna Mele
Marco Cerezo
12 months ago
Another amazing paper from our Summer School student
@antonioannamele.bsky.social
(is that 3 papers already?!) and from our collaboration with the power house that are
@aangrisani.bsky.social
and
@quantummanuel.bsky.social
, from
@qzoeholmes.bsky.social
! 's incredible group.
arxiv.org/abs/2501.13101
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