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Diego García-Martín

@dgarciamartin.bsky.social
176 followers 202 following 23 posts

Postdoc at Johannes Kepler University Linz, working on quantum algorithms and quantum computation | Editor @quantum-journal.bsky.social

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Reposted by Diego García-Martín
Richard Kueng @richardkueng.bsky.social · 02/10/2026
I have been intrigued by the computational complexity of Clifford circuit synthesis since 2023 - motivated by a fun collaboration with Robert Wille+team. Our postdoc Luna Keller now found an elegant argument that settles it: optimal Clifford synthesis is NP-hard. Kudos! scirate.com/arxiv/2610.0...
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Robin Kothari @robinkothari.bsky.social · 30/09/2026
Carlos Bravo-Prieto, Aram Harrow (@harrowing.bsky.social), and I just uploaded a preprint that proves new upper and lower bounds to finally close the query complexity of the quantum linear systems problem. scirate.com/arxiv/2609.3... arxiv.org/abs/2609.35660
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Juan José García-Ripoll @jjgarciaripoll.bsky.social · 24/09/2026
Open position in our new institute @quarc-csic.bsky.social Help us create a large nation wide quantum communication infrastructure!
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Unitary Foundation @unitary.foundation · 10/09/2026
🌐 The 2026 Quantum Open Source Software Survey is open! Share your perspective on the quantum software ecosystem and help shape a clearer picture of our community. 📝 Take the ~20-min survey and make your voice heard: buff.ly/6iZCwAC
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Instituto de Física Fundamental CSIC (IFF-CSIC) @iff-csic.bsky.social · 07/09/2026
👋Este mes damos la bienvenida a Alex Pozas-Kerstjens, nuevo investigador Ramón y Cajal en el IFF. Con su trabajo contribuirá al desarrollo de herramientas para la certificación de fenómenos cuánticos y el diseño de protocolos criptográficos para redes de comunicación cuánticas.
Imagen de Alex Pozas-Kerstjens.
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Juan José García-Ripoll @jjgarciaripoll.bsky.social · 31/08/2026
The Spanish Network for Quantum Information and Quantum Technologies has a new home ritce.hbar.es The web offers (i) a census of the quantum community, (ii) a catalogue of activities in Spain, (iii) a job market, and (iv) a catalogue of talks offered to schools, universities & other entities 1/3
ritce.hbar.es
RITCE
Red de Información y Tecnologías Cuánticas en España
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Marco Cerezo @mvscerezo.bsky.social · 25/07/2026
We know LLMs can one-shot quantim information papers now, and even write decent manuscripts. What's the consensus of proper practice for what to do with those AI-generated papers? I review the proof, I sign my name, acknowledge the it is AI made, put it on arxiv, rinse, repeat?
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Francesco Anna Mele @francescoannamele.bsky.social · 22/07/2026
Sadly, unless you pay $200 per month (230 EUR if you’re European 🙂), you’re no longer as competitive in quantum info theory (as I guess in any applied-math topic).
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BSC-CNS @bsc-cns.bsky.social · 08/07/2026
🎓 We have a new BSC #PhD! Berta Casas Font, from the Quantic group, has successfully defended her #PhDThesis. 🎉 Well deserved, Berta! Wishing you the best in your career ahead! #BSCTalent
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Ricard Puig @pvricard.bsky.social · 22/06/2026
New paper on the arxiv from a couple of days ago! scirate.com/arxiv/2606.1... We re-examine the role of warm starts and parameter initialization in variational quantum algorithms. Spoiler: it's not as promising as it seems.
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Ross Duncan @rossquantum.bsky.social · 19/06/2026
Do you like compiling quantum software? Maybe you should send something to the 8th International Workshop on Quantum Compilation? The deadline is the 10th of July! Tell your friends! (Just the cool ones.) quantum-compilers.github.io/iwqc2026/ #quantum #compilers #quantumcomputing #iwqc2026
quantum-compilers.github.io
8th International Workshop on Quantum Compilation
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I-Chi Chen @ichen17.bsky.social · 18/06/2026
Happy to share our two recent preprints: 1. Efficient Magic State Factory via Transversal Non-Clifford Gates lnkd.in/gTFkQNj6 2. Efficient Magic State Cultivation for √T Gates lnkd.in/g4pwwp7J
lnkd.in
LinkedIn
This link will take you to a page that’s not on LinkedIn
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Nahuel L Diaz @nahuelldiaz.bsky.social · 13/06/2026
I'm so happy to share this paper, we put a lot into this one: arxiv.org/abs/2606.12539 If you have ever wondered what the quantum-information literature has to say about temporal correlations and time itself, check out our unifying picture: all you need are spacetime states.
arxiv.org
Unifying spacetime approaches to quantum mechanics
Recent efforts to formulate quantum mechanics in a way that treats space and time on a more equal footing have led to a large variety of spacetime-oriented approaches. In this work we present a detail...
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QIP @qipconference.bsky.social · 26/05/2026
A warm welcome from the organisers of QIP 2027! The conference will take place February 20-26 at the National University of Singapore. For up-to-date information, check out the website: qipconference.org/2027/
qipconference.org
Home
What is QIP 2027? QIP 2027 is the 30th edition of the yearly international scientific conference on the Quantum Information Processing. See the list of previous conferences here.
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Michał Oszmaniec @michaloszmaniec.bsky.social · 13/05/2026
Currently, in CTP PAS we have two open group leader positions (deadline: 17 May) within a newly established Center For Quantum Enabled Computing: • Quantum algorithms and (quantum) machine learning • Neutral atoms for quantum computing and quantum technologies #quantumcomputing #openpositions
c4qec.cft.edu.pl
C4QEC | Center for Quantum-Enabled Computing
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Marco Cerezo @mvscerezo.bsky.social · 06/05/2026
⚠️New paper out from our Quantum Computing Summer School! We introduce Quantum Gaussian Processes, QGPs, a Bayesian framework for learning directly from quantum data. arxiv.org/abs/2605.00099 see 🧵
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Juan José García-Ripoll @jjgarciaripoll.bsky.social · 23/04/2026
Today, as part of our Strategy on Quantum Technoolgies, @csic.es announced the creation of a new research institute in Madrid, the Quantum Advanced Research Center or QuARC @quarc-csic.bsky.social This new institute launches now with 24 PIs and a total of 100 researchers 1/ quarc.csic.es
quarc.csic.es
Quantum Advanced Research Center
Quantum Advanced Research Center
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Richard Kueng @richardkueng.bsky.social · 22/04/2026
Four QUICK sloths (🦥) from @jku.at in Hogwarts, aehm Oxford: Mario, Marwa, @dgarciamartin.bsky.social and yours truly. QCTiP 2026 (qctipconf.github.io) has been a blast. This was my first time as a PC chair and I am happy+proud how everything turned out. Huge thanks to everyone who contributed!
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Marco Cerezo @mvscerezo.bsky.social · 06/04/2026
Extremely proud to see our paper "Quantum Convolutional Neural Networks are Effectively Classically Simulable" published in PRX Quantum journals.aps.org/prxquantum/a... This is an instantiation of our work, provable absence of barren plateaus implies classical simulability.
journals.aps.org
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Diego García-Martín @dgarciamartin.bsky.social · 25/03/2026
New paper out!! 🥳😄 Last Friday we uploaded our latest preprint to the arXiv: "The commutant of fermionic Gaussian unitaries" Amazing collaboration with @impolster.bsky.social, @nahuelldiaz.bsky.social, @martinlaroo.bsky.social and @mvscerezo.bsky.social ! Thread 👇 arxiv.org/abs/2603.19210
arxiv.org
The commutant of fermionic Gaussian unitaries
In this work, we characterize the $t$-th order commutants of fermionic Gaussian unitaries and of their particle-preserving subgroup acting on $n$ fermionic modes. These commutants govern Haar averages...
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BSC-CNS @bsc-cns.bsky.social · 20/03/2026
🎆 Congratulations to Sergi Masot Llima, from the Quantic group, on the successful defence of his #PHD thesis! 🙌 Well done, Sergi! Wishing all the best in your career ahead. #BSCTalent
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Quantum Journal @quantum-journal.bsky.social · 13/03/2026
Celebrate with us Quantum's approaching 10 year anniversary in 2026 with the publication of the 2026th paper! Do you know which paper that is? quantum-journal.org/2026-quantum...
quantum-journal.org
2026 Quantum papers!
Congratulations Quantum community! It’s hard to believe 10 years have passed and we’re en route to our 10-year founding anniversary in April 2026. On that occasion we wanted to announce ...
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Marco Cerezo @mvscerezo.bsky.social · 06/03/2026
PSA for my friends in quantum 👋 New Mexico Quantum Technologies Award is open—rolling apps thru April. Up to $200K for NM-based companies or folks expanding into NM. Apply: NM Quantum Technologies Award – New Mexico EDD edd.newmexico.gov/quantum-gran...
edd.newmexico.gov
NM Quantum Technologies Award - New Mexico EDD
The New Mexico Quantum Technologies Award (NMQTA) is a competitive, state-funded grant that awards non-dilutive funds to early-stage companies working in
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Juan José García-Ripoll @jjgarciaripoll.bsky.social · 04/03/2026
Happy to announce that registration is open for our "UIK Summer School | Fundamental Science with Quantum Computers and Simulators", to take place in San Sebastián / Donostia (Spain), 📅 September 14–17, 2026 qtep.csic.es//summer-scho...
qtep.csic.es
Summer School “Fundamental Science with Quantum Computers and Simulators”
Researchers from CSIC's Quantum Techologies Platform, Daniel Barredo and Juan José García Ripoll, in collaboration with Enrique Rico Ortega (UPV/EHU, Ikerbasque, BasQ and CERN), organize a summer school on how programmable quantum devices (superconducting circuits, trapped ions, Rydberg-atom arrays, and ultracold atomic systems) open new avenues for addressing fundamental physics problems beyond the reach of [...]
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Supanut Thanasilp @supanut-thanasilp.bsky.social · 25/02/2026
Last call for abstracts! Join us for Quantum Information by the beach in Thailand ⚛️ 🏖️🇹🇭 The 2nd International Conference on Siam Quantum Science and Technology (SQST 2026), happening May 18 – 21, 2026, in beautiful Jomtien, Chonburi, Thailand! 🌊 🔗Abstract Submission& Further Info: www.sqst2026.org
sqst2026.org
Siam Quantum Science and Technology (SQST 2026)
The 2nd International Conference on Siam Quantum Science and Technology
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Diego García-Martín @dgarciamartin.bsky.social · 12/02/2026
New paper out!! 🎉😄 Quite happy about this one, amazing job by our summer student Berta!! 🤩🦾 Check Berta's thread for details! 👇🧵
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BSC-CNS @bsc-cns.bsky.social · 06/02/2026
🎂Hoy hace un año que presentamos el sistema cuántico de @quantumspain-project.es En el tiempo que ha estado en marcha: ☑ Se han ejecutado 45 proyectos. ☑ 4.180 horas otorgadas. ☑ Equipos de 29 instituciones diferentes han accedido. #MareNostrumOna I #NextGenerationEU I #PlandeRecuperación I
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Marco Cerezo @mvscerezo.bsky.social · 04/02/2026
I am extremely excited to share our latest news: LANL formed a Center for Quantum Computing!! This Center will enhance our quantum workforce via co-location, and will even host the Summer School! So, if you applied for it, you might be the first cohort in the Center! www.lanl.gov/media/news/0...
lanl.gov
Los Alamos forms quantum computing-focused research center | LANL
Los Alamos National Lab forms quantum computing center, consolidating diverse research to drive innovation in national security, algorithms, and workforce development.
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Marco Cerezo @mvscerezo.bsky.social · 03/02/2026
New paper out! 🎆 In collaboration with University of Udine 🇮🇹🤝 arxiv.org/abs/2601.19738 Huge props to my colleagues Daniele Lizzio Bosco, Lukasz Cincio and Giuseppe Serra
arxiv.org
Quantum Circuit Pre-Synthesis: Learning Local Edits to Reduce $T$-count
Compiling quantum circuits into Clifford+$T$ gates is a central task for fault-tolerant quantum computing using stabilizer codes. In the near term, $T$ gates will dominate the cost of fault tolerant i...
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Marco Cerezo @mvscerezo.bsky.social · 28/01/2026
We still have open postdoc positions in our group! Looking for someone with expertise in quantum computing, tensor networks, Monte Carlo and other methods to simulate quantum many-body systems! Shares appreciates! Apply here: lanl.jobs/search/jobde...
lanl.jobs
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.
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Juan José García-Ripoll @jjgarciaripoll.bsky.social · 26/01/2026
"15 positions for promising young postdoctoral researchers: Ikerbasque Research Fellows 2026." calls.ikerbasque.net Webinar: info.ikerbasque.net/c/9o9w30/0k-...
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Marco Cerezo @mvscerezo.bsky.social · 22/01/2026
I am very excited to share my latest paper from the quantum computing summer arxiv.org/abs/2601.14225 In collaboration w/ Luke Coffman, @nahuelldiaz.bsky.social , @martinlaroo.bsky.social , and the one and only Maria Shuld from Xanadu
arxiv.org
Group Fourier filtering of quantum resources in quantum phase space
Recently, it has been shown that group Fourier analysis of quantum states, i.e., decomposing them into the irreducible representations (irreps) of a symmetry group, enables new ways to characterize th...
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Richard Kueng @richardkueng.bsky.social · 08/01/2026
This year's Quantum Computing Theory in Practice Conference (QCTiP) is scheduled for 04/20/2026-04/25/2026 in Oxford, UK 🇬🇧: qctipconf.github.io Talk submission deadline is just round the corner: 01/11/2026. Looking forward to many exciting contributions and a great time in Hogwarts🪄, aehm Oxford🎓.
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Juan José García-Ripoll @jjgarciaripoll.bsky.social · 29/12/2025
PSA: There are going to be many open positions in quantum technologies in CSIC in the coming years. Permanent positions. If you are interested, please review earlier calls to understand the requirements 1/
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Alex Pozas-Kerstjens @alexpozas.com · 26/12/2025
I was not expecting this for Christmas, at all. I am truly grateful for having my research being recognized this way. Thanks to @ioppublishing.bsky.social @iopp-quantum.bsky.social for this prize! iopscience.iop.org/journal/2058...
iopscience.iop.org
The IOP Publishing International Quantum Early Career Award - Quantum Science and Technology - IOPscience
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Marco Cerezo @mvscerezo.bsky.social · 22/12/2025
🎆As the year ends, I want to remind everyone that our summer school applications are open! Please apply/encourage your students to apply here: academicjobsonline.org/ajo/jobs/31108 We also have a handshake link too🤝 : app.joinhandshake.com/emp/jobs/105... Shares appreciated!
academicjobsonline.org
Los Alamos National Laboratory, Condensed Matter and Complex Systems
Job #AJO31108, 2026 Los Alamos Quantum Computing Summer School, Condensed Matter and Complex Systems, Los Alamos National Laboratory, Los Alamos, New Mexico, US
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Información y Tecnologías Cuánticas en España @qipcspain.bsky.social · 10/12/2025
PhD position. PhD position in Quantum Technologies for Theoretical Physics at Institute for Theoretical Physics (IFT) UAM-CSIC www.cuantica2025.es/job-market
Job offer sign
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Zoe Holmes @qzoeholmes.bsky.social · 21/11/2025
Sit down & buckle up. Behind this rather innocent title is the paper that caused the most fraught arguments of any of my career. Are these arguments important? Probably not. Am I going to tell you them anyway? Absolutely. Here is the story of a rollercoaster of a paper. 🎢👇
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Marco Cerezo @mvscerezo.bsky.social · 21/11/2025
This was a really cool project to work on! Matt is an amazing researcher, go follow him! Also, he's on the job market for a postdoc 😋😉
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Marco Cerezo @mvscerezo.bsky.social · 21/11/2025
I am extremely proud of this review article to Quantum Machine Learning 🌟🌟 arxiv.org/abs/2511.15969 Our goal was to give a bird's eye view of QML, from quantum PAC, to Linear Algebraic approaches and variational methods. Huge thanks to my co author Su Yeon Chang@
arxiv.org
A Primer on Quantum Machine Learning
Quantum machine learning (QML) is a computational paradigm that seeks to apply quantum-mechanical resources to solve learning problems. As such, the goal of this framework is to leverage quantum proce...
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Matthew Duschenes @mduschenes.bsky.social · 21/11/2025
If you've ever been curious about statistics and random dynamics in general quantum settings, here's some new work on moments of ensembles of random quantum channels, with the amazing @dgarciamartin.bsky.social , @qzoeholmes.bsky.social , and @mvscerezo.bsky.social !! arxiv.org/abs/2511.12700
arxiv.org
Moments of quantum channel ensembles
Moments of ensembles of unitaries play a central role in quantum information theory as they capture the statistical properties of dynamics of systems with some form of randomness. Indeed, concepts suc...
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Marco Cerezo @mvscerezo.bsky.social · 18/11/2025
🚨Applications for LANL's 2026 Quantum Computing Summer School are open! Please apply here 👇 academicjobsonline.org/ajo/jobs/31108 Reposts appreciated! Deadline to Apply is January 11th 2026. Still, you should go and apply now!
academicjobsonline.org
Los Alamos National Laboratory, Condensed Matter and Complex Systems
Job #AJO31108, 2026 Los Alamos Quantum Computing Summer School, Condensed Matter and Complex Systems, Los Alamos National Laboratory, Los Alamos, New Mexico, US
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Marco Cerezo @mvscerezo.bsky.social · 14/11/2025
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
lanl.jobs
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.
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Aram Harrow @harrowing.bsky.social · 23/10/2025
We're hiring postdocs! Deadline is 15 Nov. We're also advertising Leinweber postdoctoral fellowships, which also have an earlier nomination deadline of 1 Nov. academicjobsonline.org/ajo/MIT/CTP-LI
academicjobsonline.org
Massachusetts Institute of Technology, The MIT Center for Theoretical Physics - a Leinweber Institute
Full service online faculty recruitment and application management system for academic institutions worldwide. We offer unique solutions tailored for academic communities.
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Marco Cerezo @mvscerezo.bsky.social · 22/10/2025
Our group is looking to hire postdocs to work at the intersection of quantum computing, quantum algorithms, quantum machine learning, simulation of many-body quantum systems and early-fault tolerant quantum computing Apply here: lanl.jobs/search/jobde... Reposts appreciated!
lanl.jobs
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.
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Richard Kueng @richardkueng.bsky.social · 21/10/2025
(I/III) We're excited to announce a new tenure track opening! The position is called 'quantum informatics' and is affiliated with our QUICK group within the CS+AI division at @jku.at 🇦🇹. Application deadline is November 30th, 2025: www.jku.at/en/the-jku/w...
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Juan José García-Ripoll @jjgarciaripoll.bsky.social · 11/10/2025
Researchers from our group, Luca Tagliacozzo and Diego Porras, are offering two fully funded PhD positions (FPI grants) as part of their separate projects. Come and join us in CSIC!
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Quinfog Group at IFF-CSIC @queen-of-fog.bsky.social · 04/10/2025
Two PhD Opportunities at QUINFOG #quantumjobs [🌎]
Featured media
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Alexander Schuckert @schuckert.org · 24/09/2025
When you realize the whole yearly budget for Quantum journal is equal to 8 Nature APCs - and they don't even wreck your paper in proof stage because...there is none
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Mark M. Wilde @markwilde.bsky.social · 19/09/2025
The accepted papers for QTML 2025 are listed here: qtml2025.cqt.sg/accepted-pap... #QTML2025
qtml2025.cqt.sg
Accepted Papers - Quantum Techniques in Machine Learning (QTML)
Contratulations to authors with talks accepted for the Quantum Techniques in Machine Learning 2025 conference in Singapore
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