Quantum and Linear-Optical Computation group @INL
479 posts
Quantum and Linear-Optical Computation group @INL
@QLOC_INL
QLOC research group at @INLnano. We work on foundations of quantum computation, photonic QC, and quantum software engineering. @[email protected]
Braga, Portugal Katılım Haziran 2022
262 Takip Edilen392 Takipçiler
New preprint by Mafalda Ramôa, Luís Paulo Santos, and colleagues from Virginia Tech! They propose new co-design adaptive quantum state preparation protocols, with significant improvements as compared to the state-of-the-art. Congrats Mafalda!
arxiv.org/abs/2601.20681
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New @QLOC_INL group preprint! Mafalda Ramôa and collaborators from Virginia Tech, Stanford, Brown, NASA, and MSU benchmark multiple near-term and fault-tolerant algorithms for tasks in biochemistry. Congrats Mafalda! arxiv.org/abs/2601.19059
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New @QLOC_INL preprint! Lorenzo Catani and collaborators at UFF and IFRJ (Brazil) experimentally demonstrate nonclassicality using different degrees of freedom of classical light. Congrats to Lorenzo and to former QLOC group member Wagner Balthazar! scirate.com/arxiv/2601.169…
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New preprint out! By Marco Robbio, Leonardo Novo (INL), Ernesto Galvão (INL/UFF) and Nicolas Cerf (ULB). We show how to efficiently measure multivariate traces of quantum states (AKA Bargmann invariants) using linear optics, with multiple applications. scirate.com/arxiv/2601.142…
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New preprint by PhD student Mafalda Ramôa, together the Virginia Tech team and Austrian high-school students (!) she's been supervising, on new strategies for variational quantum algorithms. Congrats Mafalda and collaborators! arxiv.org/abs/2512.25004
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And now this paper by Rafael Wagner, Kyrylo Simonov, and Ernesto Galvão has appeared in Physical Review A! Congrats to the authors. @INLnano @foqacia_org journals.aps.org/pra/abstract/1…
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New preprint! Rafael Wagner, @efgalvao (@INLnano ), and Kyrylo Simonov (Vienna) show how to use available classical information to simplify estimation of Bargmann invariants for applications in OTOCs, geometric phases, and KD distributions. @foqacia_org arxiv.org/abs/2505.20208
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Quantum and Linear-Optical Computation group @INL retweetledi
@QLOC_INL 's Master's degree student Carolina Sobral received the best Master's poster at the Early Stage Research Association Symposium @INLnano. Congrats Carolina! inl.int/esra-symposium…
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@QLOC_INL 's Michael de Oliveira has just got his PhD! The main examiners were @danielgrier_ and Dan Brown. His thesis, on shallow circuits and verification protocols, was co-supervised by Elham Kashefi, Ernesto Galvão and Luís Soares Barbosa. Congrats Michael! @INLnano
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@fcrperes @efgalvao @foqacia_org And our paper on improving Pauli-based quantum computation has now been published in @PhysRevA ! Congrats to Filipa Peres, who's now a postdoc in the group of Jara Juana Bermejo-Vega in Granada. @INLnano @foqacia_org doi.org/10.1103/d3x5-c…
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@fcrperes @efgalvao Congrats to Filipa! This is work associated to her PhD thesis, already submitted. Thanks to @INL_nano @foqacia_org and #FCT for support and funding! 5/n, n=5.
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New @QLOC_INL preprint by Filipa Peres @fcrperes and Ernesto Galvão @efgalvao! We propose ways of decreasing the depth and complexity of adaptive quantum computation driven by Pauli measurements, a model known as Pauli-based computation. scirate.com/arxiv/2408.040… 1/n
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New @QLOC_INL preprint! Wagner Balthazar, @efgalvao and colleagues from Bristol describe a Feynman path technique for simulation of boson sampling - including open-source code. @phoqusing @INLnano scirate.com/arxiv/2510.264…
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Newest @QLOC_INL PhD! Rafael Wagner passed his PhD viva at Univ. Minho today with flying colours. Multiple papers and collaborations, deep foundational insights and even experiments, this thesis has it all. Congrats Rafael! @INLnano @foqacia_org
Ernesto Galvão@efgalvao
Rafael Wagner is the newest PhD in the group! 5 papers reported in the thesis, 14 others (and counting) on related topics. Congrats Rafael, please keep up the enthusiasm and good work! It was a pleasure to co-supervise your project together with Rui and Mikhail.
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Here's a poster with the programme:
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The Univ. of Minho will celebrate the International Year of Quantum Science and Technology with a meeting on Nov. 3rd. Specialists discussing the theme include Filipa Peres and Rafael Wagner, graduates from our group. Register for free: docs.google.com/forms/d/e/1FAI…
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And this paper on the characterization of which complex values unitary invariants can take has been published in PRA! Congrats to the authors. @INLnano journals.aps.org/pra/abstract/1…
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New preprint out! We find exactly which complex values Bargmann invariants can take, with applications to geometric phases, weak values, etc. Joint work of @QLOC_INL's Leonardo Novo and @efgalvao, with Sagar Pratapsi and João Gouveia (Coimbra). arxiv.org/abs/2506.17132
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New preprint out! By @efgalvao and collaborators from UFF in Brazil. They measure overlaps of classical states of a light beam featuring fractional OAM states. They use overlap inequalities to witness dimension and coherence in this classical setting. arxiv.org/abs/2509.13275
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New @QLOC_INL preprint! Rafael Wagner and collaborators from Gdansk and Waterloo extend the framework of generalized probabilistic theories to describe general complex-valued quasiprobability representations. Congrats! arxiv.org/abs/2509.10949
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New QLOC group paper published by Alexandra Ramôa and Luís Paulo Santos. They develop a new algorithm for amplitude estimation, with advantage in noisy scenarios, and accompanying open-source software. Congrats! quantum-journal.org/papers/q-2025-…
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New @QLOC_INL paper out! Leonardo Novo (INL) and Michael Jabbour (Brussels) look at the complexity of CV states in linear-optical devices, describing how it increases when nonlinear gates are introduced. Congrats! @phoqusing iopscience.iop.org/article/10.108…
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