Reposted by Jake XuerebAlex @itsmealeale.bsky.social · 12hCan a physically motivated symmetry make many-body magic analytically solvable? If so, at what cost? We answer this question (arxiv.org/abs/2609.38319), by looking at pairwise parity symmetry. This gives rise to a family of quantum states known as X-states. (continue..)/n 154
Jake Xuereb @curlyqubit.bsky.social · 25/08/2026Today on the arXiv with @itsmealeale.bsky.social we provide insights into the question of whether the presence of quantum entanglement at equilibrium can influence how an interacting system responds to changes in temperature. scirate.com/arxiv/2608.2... 193
Jake Xuereb @curlyqubit.bsky.social · 21/08/2026Timestamp for the nerds and the sharpshooters - coming to an arXiv near you next Tuesday 🔫 050
Jake Xuereb @curlyqubit.bsky.social · 04/06/2026@quoi-theory.at mods posted the defense pic where I look most dead - whilst I was tired, I was also very happy ❤️ 3171
Jake Xuereb @curlyqubit.bsky.social · 04/06/2026I think becoming a Dulwich Quantum Meme is a good way to cap off the PhD 0161
Jake Xuereb @curlyqubit.bsky.social · 08/05/2026My deepest congratulations to my brother in arms, the freshly minted Dr. @mathsmire.bsky.social 🥳🥳🥳🥳🥳 2180
Jake Xuereb @curlyqubit.bsky.social · 17/03/2026One of the best introduction of thermodynamics I've ever read. Thermodynamics as the old man at house party of theories of physics being introduced by his granddaughter, entanglement theory. Douglas Adams like brilliance from Matteo Lostaglio and a good reminder that a phd thesis can be playful. 1100
Jake Xuereb @curlyqubit.bsky.social · 04/03/2026Beautiful @johncarlosbaez.bsky.social thread, feels like old quantum twitter again 😭 020
Jake Xuereb @curlyqubit.bsky.social · 04/03/2026The Qalypso School on Quantum Science in Malta returns for its 3rd edition Aug 31 - Sep 4 this year! 🏖️ We have a great line up of lecturers covering Quantum Optimisation, Quantum Thermodynamics and Quantum Gibbs Sampling. Pre-registrations opens today at forms.gle/3NkMJ3Br9V8b... Do Share! 0199
Jake Xuereb @curlyqubit.bsky.social · 22/02/2026Landauer was such a gangster. Maybe I should get this on a t-shirt (ieeexplore.ieee.org/document/521...) 060
Reposted by Jake XuerebFlorian Meier @mathsmire.bsky.social · 19/01/2026From one tick to the next, small timing uncertainties in clocks usually add up because of the independence of errors. Using fermions tunneling through a quantum wire as clock ticks, we found a way to build a clock where errors cancel out rather than accumulate. arxiv.org/abs/2601.10785 1134
Reposted by Jake XuerebAlex @itsmealeale.bsky.social · 23/01/2026Can Gottesman–Kitaev–Preskill (GKP) encoding turn homodyne detection into a practical tool for revealing Bell nonlocality? The answer is yes, and in fact GKP states also lead to strong and robust multipartite nonlocality with homodyne detection! Today on arXiv: arxiv.org/abs/2601.16189 1/n. 1103
Jake Xuereb @curlyqubit.bsky.social · 22/01/2026(1/2) Got on a train a week ago headed from Vienna to Lausanne and spent some days hanging out at EPFL. Was fortunate to be able to share our insights from our recent PRX Q on Cooling a Qubit using N Others at -- recording here 👁 Warm thanks to @qzoeholmes.bsky.social and Jon Conrad for having meyoutu.beQSE Seminar - Jake Xuereb, Cooling a Qubit using n OthersYouTube video by Center for Quantum Science and Engineering EPFL 190
Jake Xuereb @curlyqubit.bsky.social · 14/01/2026🧵 Here is a thread reviewing what in my view were some of the stand out works in Quantum Thermodynamics that appeared on the arXiv for 2025. (1/14) #quantum #thermodynamics 1110
Jake Xuereb @curlyqubit.bsky.social · 20/12/2025Quite happy seeing this work out now in @prxquantum.bsky.social It was great fun working with my collaborators on this one. Especially pleased to have brought some graph theoretic combinatorics to Quantum Thermodynamics 🔥🧊 journals.aps.org/prxquantum/a...journals.aps.orgCooling a Qubit Using n OthersBy extending the algorithmic cooling problem to qubit machines with arbitrary energy structure, this work reveals fundamental limits on quantum cooling and shows how a reservoir's internal energy land... 031
Reposted by Jake XuerebDave Richeson @divbyzero.bsky.social · 11/12/2025Here are a couple of neat theorems due to John Conway and Cameron Gordon (1983): Any embedding of K_6 in 3D has two linked triangles (red and blue below). Any embedding of K_7 in 3D has a knotted Hamiltonian circuit (red below). Article: people.reed.edu/~ormsbyk/138... 1163
Jake Xuereb @curlyqubit.bsky.social · 13/11/2025If you wanna know more about where I'm from, where it's at and why it's there -- this article is a good analysis of the economics and corruption that led to the current state of affairs in Malta. 020
Reposted by Jake XuerebJonathan Oppenheim @postquantum.bsky.social · 11/11/2025A recent @nature.com article claims that classical (unquantised) gravity produces entanglement. We show that their model does not produce entanglement. Even if the model produced entanglement, it would be mediated by the quantised matter interaction, and not gravity. scirate.com/arxiv/2511.0... 🧪⚛️scirate.comClassical gravity cannot mediate entanglementIn Nature, 646, 813 (2025), Aziz and Howl claim that classical (unquantised) gravity produces entanglement. We show that their model does not produce entanglement. Even if the model produced entanglem... 1175
Jake Xuereb @curlyqubit.bsky.social · 05/11/2025arxiv.org/abs/2511.02683 Gravity mediated entanglement arXiv posting of the day. This time from across the road, IQOQI Vienna's Andrea di Biagio reminds us about important assumptions different models make and why it's hard to make a model independent no-go theorem. 040
Jake Xuereb @curlyqubit.bsky.social · 04/11/2025arxiv.org/abs/2511.00852 The saga continues, my favourite of the reactions to the Aziz, Howl paper so far. A sharp and straightforward passage from Diosi makes clearer why the semi-classical treatment does not agree with the calculation of Aziz and Howl.arxiv.orgNo, classical gravity does not entangle quantized matter fieldsIn their recent work [Nature,646,813(2025)], Aziz and Howl claim that classical (unquantized) gravity produces entanglement of quantized matter if matter is treated within quantum field theory which i... 030
Jake Xuereb @curlyqubit.bsky.social · 24/10/2025"no amount of QFT machinery will ever change that fact" Who needs reality TV when you've got quant-ph arguments about the quantum nature of gravity I'm biased towards the guys with the peer reviewed careful math, not the overnight 2 eq arxiv posting tbh arxiv.org/abs/2510.19969 160
Jake Xuereb @curlyqubit.bsky.social · 17/10/2025V3 of this manuscript is on the arXiv today : arxiv.org/abs/2505.15887 You'll find : -a friendlier presentation for people from outside the quantum thermosphere -a probabilistic bipartite heat exchange that approaches the capabilities of the n-partite interaction of V1 -cleaner inequalities! 060
Jake Xuereb @curlyqubit.bsky.social · 09/10/2025105 new submission in 1 day. "2 arxiv submissions a year, those are rookie numbers in this racket" Still waiting for an argument for how this rate of production benefits us or science at large.media.tenor.coma man in a suit and tie says you gotta pump those up those are rookie numbers in this racket .ALT: a man in a suit and tie says you gotta pump those up those are rookie numbers in this racket . 060
Jake Xuereb @curlyqubit.bsky.social · 01/10/2025Amazing to see the work of @itsmealeale.bsky.social and Partyk L Bartosik highlighted like this. Having followed it as it was written and knowing the hard work that was poured into it, really brings a smile to one's face to see it highlighted. Yes to detecting entanglement using thermodynamics!quantamagazine.orgA Thermometer for Measuring Quantumness | Quanta Magazine“Anomalous” heat flow, which at first appears to violate the second law of thermodynamics, gives physicists a way to detect quantum entanglement without destroying it. 162
Jake Xuereb @curlyqubit.bsky.social · 24/09/2025Considering creating an anonymous google form survey for researcher in QInfo with questions on what roles collaborators have in projects. E.g. What roles does a last author have in a project vs What roles does a first author have Would you fill it out? What questions would be interested in? 140
Jake Xuereb @curlyqubit.bsky.social · 17/09/2025More collage art about Quantun Information please 010
Jake Xuereb @curlyqubit.bsky.social · 15/09/2025Good morning from TQC 2025 in Bengalore IISC 🇮🇳 I'm here spreading some Quantum Thermo propaganda to the Algo, Crypto people - pass by poster 72 if interested in (arxiv.org/abs/2505.15887) Bengalore has been overwhelming, awesome, beautiful and tasty so far 3100
Jake Xuereb @curlyqubit.bsky.social · 08/09/2025I think the number of single author arXiv postings on quant-ph is steadily increasing. E.g. today 7/48 postings were single author. Has anyone else been noticing this? Surely it's due to GPTs being good paper writing assitants, right? 000
Jake Xuereb @curlyqubit.bsky.social · 22/08/2025Anyone else headed to TQC in Bengaluru and hanging out a bit the week after? Do send a message if yes and you're up for hanging out after the conference. 😄 tqc-conference.orgtqc-conference.orgTQC Conference 2025 | Theory of Quantum Computation, Communication and Cryptography 020
Jake Xuereb @curlyqubit.bsky.social · 13/08/2025(1/n) I’ve been binging some golden oldies from the optomech boom of the late 2000s and was surprised to find that the currently popular gravitationally mediated entanglement "is gravity quantum" experimental proposals -- find their origin there. Here’s a little thread on that lineage. 🧵 130
Jake Xuereb @curlyqubit.bsky.social · 12/08/2025I've gotten into dumpster diving through Scirate for old discussions. A journal club with a time machine. Here's one on how you could build a Qcomputer out of 1 photon but "a photon as wide as the universe would be like ∼100 qubits" from @mankei-tsang.bsky.social scirate.com/arxiv/1909.0... 030
Jake Xuereb @curlyqubit.bsky.social · 11/08/2025Warm and well deserved congratulations to @itsmealeale.bsky.social and coauthors on the most beautiful review to ever grace the pages of Physical Review 🎆 I'm sure many students will be thankful for years to come for having learnt about how to carry out thermodynamic exorcisms from this tutorial 😈 140
Jake Xuereb @curlyqubit.bsky.social · 02/08/2025"You're a cargo cult scientist, A real crank turning nihilist, I only found your citations-- On Google Squalor" Avidly preparing for my next academic rap battle, that's how tenure works right? 040
Jake Xuereb @curlyqubit.bsky.social · 29/07/2025(1/3) Updated on the arXiv this morning! No more painful typos and new appendices. One comparing our sample complexity with that of classical probabilistic approaches and another providing a recipe for oracles to prepare thermal machines. arxiv.org/abs/2505.15887arxiv.orgA Temperature Change can Solve the Deutsch-Jozsa Problem : An Exploration of Thermodynamic Query ComplexityWe demonstrate how a single heat exchange between a probe thermal qubit and multi-qubit thermal machine encoding a Boolean function, can determine whether the function is balanced or constant, thus pr... 171
Jake Xuereb @curlyqubit.bsky.social · 12/07/2025View of the Maltese Archipelago from Gozo this morning 🇲🇹 0110
Jake Xuereb @curlyqubit.bsky.social · 22/06/2025Easy to feel powerless in times like these. Trying to remember that science is a political act and a force that brings people together from all over the world out of excitement for the beauty of nature. In this sense, science is an act of defiance against those that wish to divide humanity. 061
Jake Xuereb @curlyqubit.bsky.social · 13/06/2025(1/n) Today on the arXiv, we examine the folklore that cooling a quantum system with access to another requires one to order their joint state eigenvalues in decreasing order and find that this sorting is actually dictated by a simple set of inequalities. scirate.com/arxiv/2506.1... 1142
Jake Xuereb @curlyqubit.bsky.social · 06/06/2025Totally like not tweeting about this for any specific reasons but the surname Jozsa as in Deutsch-Jozsa is spelled "zs" not "sz" in case like I dunno you like umm put an arxiv posting with this name in the title... 070
Reposted by Jake XuerebBrendan Keogh @brkeogh.bsky.social · 02/06/2025I think a lot about how Aaron Swartz committed suicide while facing a probably long jail sentence for download some of JSTOR, but no one at Meta is going to face any repercussions for using all of Libgen to train its AI. 91365503
Jake Xuereb @curlyqubit.bsky.social · 02/06/2025Deep congratulations to the whole team but especially to Florian on what I'm sure is only his first Nature Physics paper. I am also super happy to see the Malta - Vienna connection crystallized in such a paper facilitated by @aspects-quantum.bsky.social 061
Jake Xuereb @curlyqubit.bsky.social · 23/05/2025(1/7)On a train to Styria, headed for a weekend of hiking I kept thinking 𝘤𝘢𝘯 𝘢 𝘩𝘦𝘢𝘵 𝘦𝘹𝘤𝘩𝘢𝘯𝘨𝘦 𝘣𝘦 𝘶𝘴𝘦𝘥 𝘧𝘰𝘳 𝘢 𝘤𝘰𝘮𝘱𝘶𝘵𝘢𝘵𝘪𝘰𝘯? In today's arXiv, I show that a heat exchange between a qubit and a thermal machine can be used to solve some old school query complexity problems. scirate.com/arxiv/2505.1... 1112
Jake Xuereb @curlyqubit.bsky.social · 22/05/2025Very proud of the @univie.ac.at under grad physics society Roter Vektor for standing up for science today and peaceful distributing these flyers and picketing after the talk. Shame on Uni Wien for using security to intimidate. Cheers @graemesmith.bsky.social for the flyer inspiration 😉 1141
Jake Xuereb @curlyqubit.bsky.social · 19/05/2025Going to start a big band. Our music will improve exponentially in the no. of instruments involved. We'll be called log-a-rhythms. 260
Jake Xuereb @curlyqubit.bsky.social · 15/05/2025(1/3) Next week John Clauser, the C in the CHSH inequality, a pioneer of experimental quantum information and unabashed climate change denier (see link) will give a distinguished lecture here in Vienna. I think I'll be there with a placard. archive.is/202407280905... 5190
Jake Xuereb @curlyqubit.bsky.social · 28/04/2025I don't recommend putting the wavefunction in your mouth, it's unhygienic arxiv.org/abs/2504.17911 030
Jake Xuereb @curlyqubit.bsky.social · 25/04/2025(1/3) No one has the time to read. PIs and Senior post docs are too busy applying or reporting on grants, others too busy being involved in many projects to grow their portfolio etc How did we end up here? Who does this benefit? How do we get out? 1120
Jake Xuereb @curlyqubit.bsky.social · 09/04/2025Stumbled on the QIP2015 YT channel which is a cool time capsule 10 years on. Feat. talks on area law violations, spectrum estimation, error correction and resource theory... dare I say there was more physics than in recent eds? www.youtube.com/@QIP-hq8vw/v... 040
Jake Xuereb @curlyqubit.bsky.social · 08/04/2025From the @gigipomu.bsky.social -itos this morning, who are thoughtful enough to include cute animals in mathematical texts about quantum optimal transport. arxiv.org/abs/2504.04856 0122
Jake Xuereb @curlyqubit.bsky.social · 04/04/2025(1/4) It's a great for quantum physics on the arXiv, quite a few cool preprints made it to the arxiv this morning. Here's a round-up of 4 preprints I found particularly compelling 🧵 120