My employer does a good job navigating some of these discrepancies, and I am happy here, but the NTT system that disproportionately employs women replicates inequalities that have plagued higher education for centuries and, effectively, legitimizes them.

In general, I like my job (NTT faculty at an R2). The work is manageable. The students are smart and engaged. My colleagues are kind. But, as a person whose work focuses on the social dynamics that shape women's lives, the inequity between TT and NTT faculty members is impossible to ignore.

One of the best places in North America for quantum information theory postdocs, go apply!

Graeme Smith@graemesmith.bsky.social · 5d ago

There are postdoctoral positions available in theory at IQC this year, including a new distinguished postdoc position. Come have some fun with us! uwaterloo.ca/institute-fo...

There are postdoctoral positions available in theory at IQC this year, including a new distinguished postdoc position. Come have some fun with us! uwaterloo.ca/institute-fo...

Available positions | Institute for Quantum Computing | University of Waterloo

Explore available positions at the Institute for Quantum Computing (IQC): Faculty roles, postdoctoral fellowships, and research associate opportunities.

uwaterloo.ca

Congratulations to Dr. Haneul (Chloe) Kim, who successfully defended her PhD this week! It's been great supervising her together with Eric Chitambar, and I'm really proud of her thesis work. 🥳🎓⚛️ Thanks also to the thesis committee (Eric Chitambar, Marius Junge, Daniel Alabi, and myself)!

This is a really interesting study. Some of the results (eg Figs. 3.2, 5.2) are pretty discouraging 😢 Special shoutout to the three MIT graduate student authors Anna Brandenberger, Hanna Mularczyk, Dora Woodruff for conducting this!

Hendrik De Bie@debiehendrik.bsky.social · 5d ago

Sharing this (still have to read it), as it seems important. arxiv.org/abs/2610.40584

I am delighted to formally announce the next edition of the QEC conference, which will take place in Paris from June 6 to June 11 2027 🎉 See the website for more details qec-conference.org

Congratulations to Dr. Sujeet Bhalerao, who successfully defended his PhD today! It's been a pleasure supervising him, and I'm excited to see where his journey will take him. 🥳🎓⚛️ Thanks also to the rest of the thesis committee (Fernando Granha Jeronimo, Eric Chitambar, Marius Junge, and myself)!

We acknowledge that no one has the bandwidth for this, but if it helps: -It’s ‘sleight of hand’ -It’s ‘bated breath’ -It’s ‘lo and behold’ -It's 'buck naked' -It’s ‘brass tacks’ -It’s ‘free rein’ -It’s ‘toe the line'

More broadly I’ve heard a variety of comments from physicists (not the blogger) that are along the lines of: “we don’t even need students anymore” and “what’s the point of hiring students anymore” and it’s really hard not to reply “it’s our job to train the next generation you stupid, selfish fuck”

A big part of my job as a physics professor — emphasis on the professor part here — is training my early career group members and colleagues in the craft of writing scientific papers. And that means paying attention to how they write so I can talk to them about what will help them do it better.

I also think that a lot of the most important parts of writing happen at the revision stage. That’s where you figure out the distances between what you thought you were saying, what you actually said, and what you should be saying. And that’s an active thinking process. GenAI can’t do it for you.

TIL that anyon is literally to mean "any-on", as in anything goes.

Reference letter system admins of the world, please make it easy for us to check that we uploaded the right letter for the right job 🙏

"If an expert prompts a result, they take up the mantle of responsibility I describe above [of explaining what you did, what is new vs. well-known, and nurturing the literature]. OpenAI not only refuses to take their responsibility, but they prevent their own customers from doing so." 🎯💯👏

Sophie Huiberts@sophie.huiberts.me · 3w ago

Guest blog by me

It's an academic DoS attack. Also it feels like OpenAI have burst in through the door and said "hey, I finished all those jigsaw puzzles you were doing - you're welcome!"

You may finally rest easy at night since SICs exist in all dimensions! github.com/marozols/SIC... SICs are d² unit vectors in d complex dimensions with pairwise equal inner products. Their existences in all dimensions d was conjectured by Zauner in 1999. en.wikipedia.org/wiki/SIC-POVM

Where is the understanding in any of this?

Congratulations to this year's winner of the Physics Nobel Prize!

What is the IceCube neutrino observatory? Neutrinos are elusive particles that rarely interact, but can create flashes of light when they do. Most neutrino detectors are giant water tanks surrounded by light detectors. IceCube is kilometer-long strings of detectors embedded in the Antarctic ice.

Physics World@physicsworld.bsky.social · 4w ago

A rare solo #NobelPrize in physics goes to neutrino scientist Francis Halzen “for decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin”. Full coverage here: physicsworld.com/a/francis-ha... 🧪⚛️

arXiv has updated our policy on rate limiting for all submitters. This update was made to fairly distribute moderator time & support the arXiv community of staff, volunteers, readers & authors. Please read our announcement to learn more: https://blog.arxiv.org/2026/10/01/updated-rate-limit-policy/

We analyze optimal data hiding schemes based on multipartite Werner states under PPT measurements, using the representation-theoretic framework of mixed Schur-Weyl duality. scirate.com/arxiv/2609.4...

Felix Leditzky 🏳️‍🌈🏳️‍⚧️@felixleditzky.info · last mo.

"Tight Universal Bounds on Quantum Data Hiding with Multipartite Werner States" with Oren Akresh and Jacob Beckey scirate.com/arxiv/2609.4...

We investigate constructions of exact unitary designs under symmetry constraints that reflect physical limitations in quantum devices. scirate.com/arxiv/2609.4...

Felix Leditzky 🏳️‍🌈🏳️‍⚧️@felixleditzky.info · last mo.

"Randomness of exact unitary designs under symmetry" with Christopher Vairogs scirate.com/arxiv/2609.4...

We study the compatibility of measurements, quantum channels and quantum instruments using techniques from operator space theory. scirate.com/arxiv/2609.4...

Felix Leditzky 🏳️‍🌈🏳️‍⚧️@felixleditzky.info · last mo.

"Compatibility of quantum instruments" with Haneul (Chloe) Kim, Yujie Zhang, Eric Chitambar, and Marius Junge scirate.com/arxiv/2609.4...

We recast the sample complexity of k-copy quantum state discrimination as a quantum mixing time problem that becomes fully classical under suitable (and natural) symmetries, with applications to e.g. learning phase states and hypergraph states. scirate.com/arxiv/2609.4...

Felix Leditzky 🏳️‍🌈🏳️‍⚧️@felixleditzky.info · last mo.

"A mixing time method for estimating the sample complexity of quantum state discrimination" with Juntai (Stephen) Zhou scirate.com/arxiv/2609.4...

We use representation theory to understand IID depolarizing channels as Gaussian channels in a suitable limit, which yields a substantial improvement on the best lower bound on the quantum capacity threshold of the depolarizing channel. scirate.com/arxiv/2609.3...

Felix Leditzky 🏳️‍🌈🏳️‍⚧️@felixleditzky.info · last mo.

"A depolarizing choir sings in Gaussian harmony" with Rabsan Galib Ahmed (@ahmed-rabsan.bsky.social), Sujeet Bhalerao, Sungjai Lee, Debbie Leung (@debbie-leung-q.bsky.social), Luke Schaeffer, and Graeme Smith (@graemesmith.bsky.social). scirate.com/arxiv/2609.3...

Today my group put out 5 new papers in time for the QIP deadline next week! With 221 (!) other papers posted to arXiv.org/quant-ph today, it might be a good idea to try to increase their visibility. I'll mention them sorted alphabetically by title (and might add little blurbs about each later) 🧵

Today my group put out 5 new papers in time for the QIP deadline next week! With 221 (!) other papers posted to arXiv.org/quant-ph today, it might be a good idea to try to increase their visibility. I'll mention them sorted alphabetically by title (and might add little blurbs about each later) 🧵

🐻↘️🦅

Shame on @qipconference.bsky.social for using X/twitter. You give our community a bad name.