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nquirec.bsky.social
NQUIRE Center
@nquirec.bsky.social
Research center on quantum technologies at the University of the Basque Country, Spain, comprising the groups led by @qmisanz and Jorge Casanova.

https://nquirephysics.com/
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I am looking for a PhD student to explore quantum advantage with indistinguishable particles in my group at CTP PAS, Warsaw (within Quantera TouQan project touqan.eu). 4‑yr scholarship, start  Oct 2025. Apply by 8 Aug 2025: euraxess.ec.europa.eu/jobs/360583
Touqan Quantera Project
touqan.eu
July 18, 2025 at 7:42 AM
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I’m happy to announce the results a collaboration with Adrian Franco Rubio, Alatz Alvarez Ahedo and Mikel Sanz, “Impact and mitigation of Hamiltonian characterization errors in digital-analog quantum computation”, arxiv.org/abs/2505.03642. The title is self explanatory, but there is more to it
Impact and mitigation of Hamiltonian characterization errors in digital-analog quantum computation
Digital-analog is a universal quantum computing paradigm which employs the natural entangling Hamiltonian of the system and single-qubit gates as resources. Here, we study the stability of these proto...
arxiv.org
May 7, 2025 at 8:13 AM
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🔥 New paper: "Quantum Carleman linearization efficiency in nonlinear fluid dynamics" in #PhysRevResearch. doi.org/10.1103/Phys...
Fluid dynamics is hard when things go nonlinear: turbulence, shocks, and chaotic flows. Solving it requires huge computational resources. Could quantum computing help?
June 12, 2025 at 8:58 PM
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New article published today in #PhysicalReviewResearch entitled "Existence of unbiased estimators in discrete quantum systems" with Javier Navarro Navarro and Ricard Ravell Rodríguez.

link.aps.org/doi/10.1103/...

@upvehu.bsky.social @nquirec.bsky.social
April 16, 2025 at 4:31 PM
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This paper marks the beginning of a new (and hopefully long-lasting) theoretical-experimental collaboration with David Novoa and his outstanding group focused on developing quantum technologies based on the hollow-core optical fiber platform—a field that remains largely unexplored to date.
April 6, 2025 at 7:34 PM
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We propose here the first quantum model of light-matter interaction in gas-filled hollow-core fibers. We show that, in the semi-classical limit, the model recovers the traditional equations, while also enabling the prediction of entanglement dynamics during the Raman transduction process.
April 6, 2025 at 7:32 PM
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Our new paper "Entanglement transfer during quantum frequency conversion in gas-filled hollow-core fibers" was published this week in APL Photonics. Great work by Tasio Gonzalez-Raya (as usual), Arturo Mena López and Miriam Lazo. doi.org/10.1063/5.02...
@upvehu.bsky.social BCAM Ikerbasque
April 6, 2025 at 7:28 PM
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Quantum approximated cloning-assisted density matrix exponentiation, Pablo Rodriguez-Grasa, Ruben Ibarrondo, Javier Gonzalez-Conde, Yue Ban, Patrick Rebentrost, and Mikel Sanz @pablones8.bsky.social @conzavin.bsky.social
@qmisanz.bsky.social @nquirec.bsky.social #Quantum
Link below ⬇️
March 17, 2025 at 9:31 AM
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The Lloyd-Mohseni-Rebentrost (LMR) protocol allows for implementing matrix exponentiation when copies of a quantum state are available. However, in a realistic scenario, the copies are limited and the noncloning thm prevents one from producing exact copies to increase the accuracy of the protocol.
March 12, 2025 at 9:33 PM
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In this paper, we propose a method to circumvent this limitation by introducing imperfect quantum copies, which significantly improve the performance of the LMR when the eigenvectors are known.
March 12, 2025 at 9:33 PM
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New paper published today in Phys. Rev. Research doi.org/10.1103/Phys... “Quantum approximated cloning-assisted density matrix exponentiation”. Congrats to @pablones8.bsky.social Rubén Ibarrondo, J. González-Conde, Y. Ban and P. Rebentrost! @upvehu.bsky.social #BCAM #Ikerbasque
March 12, 2025 at 5:36 PM
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The 11th edition of the Quantum Optics Conference
(quantumoptics11.confer.uj.edu.pl), a satellite conference of BEC 2025, will be held in Kraków from September 1 to 5, 2025.
February 17, 2025 at 3:39 PM
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New paper published today in Machine Learning: Science and Technology doi.org/10.1088/2632... on “Satellite image classification with neural quantum kernels”. Special congrats to @pablones8.bsky.social and to all collaborators! @upvehu.bsky.social
February 18, 2025 at 9:09 AM