Dr Jared Jeyaretnam ⚛️🧪

Quantum thermochemical engine could achieve high power with near-maximum efficiency – Physics World Otto engine design uses Bose gas as a working fluid and exchanges particles as well as heat with reservoirs

Calling all quantum steampunks! This proposed quantum thermochemical engine has a 1D Bose gas as its working fluid, and theoretical calculations show that it should combine near-maximum efficiency with high power output. Read more about it here: 🧪⚛️ physicsworld.com/a/quantum-th...

A grey shutter, covered in white grafitti. In the middle someone has scrawled both the time-dependent and time-independent Schrödinger equations, as well as some other maths, in sharpie

Not your usual grafitti… ⚛️

I love this.

Discussions shape us.
But papers do it too.

For me, one that shaped the way I think was:
🧠 Introduction to topological superconductivity and Majorana fermions by Leijnse & Flensberg.

I read it during my master’s thesis—10 years ago!—and it just clicked. 🧵🧪⚛️

I took part in this! It was a fun survey, glad to see the results are out :)

PS: I’m one of the people who “baulked at the set up of the questions” 😅

Wait, you’re telling me quarks aren’t actually painted red, blue, and green?

Photo of small black dog sitting very well to cross a road, and wearing a UCU armband

Photo of two dogs making friends on a picket line

Photo of fluffy dog with a strike sign

At the @uonucu.bsky.social picket line, excellent showing of #PupsOnPickets! #SaveHE #StopTheCuts

a lot of us at UoN are on strike today because of the threat of compulsory redundancies as part of Phase 1 of Future Nottingham

right now, it's APM (admin, professional services, managerial) being targeted

next, it will be academic and associated family of staff

@uonucu.bsky.social

Pickett placards ‘UCU says No compulsory redundancies’

Striking at Uni of Nottingham to stop compulsory redundancies - part of ‘Future #Nottingham’ cuts @uonucu.bsky.social @ucu.org.uk

A small black and brown dog in the middle of barking, nestled between someone’s legs. There are some people standing around the white-tiled courtyard although you can’t see their faces. One of them is holding a purple and green Unison flag

A wide angle shot of the same courtyard. Many people are standing around, waving flags and banners from different unions. In the background someone is giving a speech

Pros of showing up to an anti-cuts rally:

• Stand in solidarity with colleagues
• Protect your university from shredding its reputation
• Defend research and innovation
• This cute little dog who barked (loudly!) every time people clapped 🥰

#AcademicChatter

A flier with a photo of the trent building that says: NO COMPULSORY REDUNDANCIES Rally 11:45 am Monday 21st July Trent Building UCU Unison

With compulsory redundancies still on the table, were still going to push back.

On Monday at 11:45, let's show up in force, say NO to the university treating us as expendable, and show 'em what solidarity looks like!

#StopTheCuts #SaveHE

YouTube video by 2swap Double Pendulums are Chaoticn't

This is a cool video I just found on double pendulums!

Technically I believe this is a mixed phase space, something physicists in my field encounter pretty frequently (e.g. in the context of quantum scars, special states which can cause otherwise chaotic systems to behave regularly) 🧪 ⚛️

My view on this is that you’re still seeking to exploit someone else’s unethical behaviour for your own advantage - two wrongs don’t make a right! So if you’re going to do it, the safe thing to do is just derail the AI (e.g. making it respond in Latin, or include a non-sensical phrase)

I think it’s probably unethical to hide hidden messages saying “give this paper an awesome review”, but I think putting one telling the AI to refuse to review the paper, or spout something ridiculous so you can tell when it’s been used, could be useful! (Just tell the editor too)

I see UCEA has very generously offered us a paycut of 2.6% this year, on top of cumulative pay cuts of 16% since 2020.

It’s unacceptably low when so many of the basic costs of living have been spiralling.

And this is on top of my own employer (Nottingham) planning mass redundancies!

#AcademicSky

we worked so hard on this, nights and weekends, trying our best to do a good job for the American people

Excerpt from proposed NOAA budget showing zero funding for Climate Laboratories and Cooperative Institutes

Proposed NOAA budget zeros out ALL climate laboratories and cooperative institutions.

GFDL, NSSL, GML, etc.

This appears to also end the US greenhouse gas sampling network, including at Mauna Loa, the oldest continuous carbon dioxide monitoring site on Earth.

www.commerce.gov/sites/defaul...

Excerpt from the proposed 2026 NOAA Budget, showing the total funding for climate research reduced from $220 million per year to $0.

The proposed NOAA budget for 2026 contains the literal line:

Total, Climate Research: $0

www.commerce.gov/sites/defaul...

Many others are posting abt this too but this graphic viscerally shows how dire the presidential budget is for NASA 🔭🧪and worldwide astronomy. I can’t express how sad this makes me, as an American scientist. And it’s mostly already paid for projects, so also no logic in terms of saving money.

Stand Against Job Cuts at University of Nottingham Sign the petition and join the campaign

Colleagues over in Unison are running a petition to halt Nottingham’s completely unnecessary “Future Nottingham” program of cuts. Right now they’re targeting professional services but will be moving onto academics in September.

Please sign! (And join a union!)

action.unison.org.uk/page/168838/...

A screenshot of my new website, showing a little profile of me (with my picture) and a brief description. There is some text below this: “About me I am interested in non-equilibrium quantum many-body physics - in particular, ergodicity breaking (where matter taken out of equilibrium…” There is also a “hamburger” menu in the top right. (If you want to read more, visit the site!)

Hey! I have a website now 👨🏻‍💻

jaredjeya.github.io

Still a WIP as I’m figuring out how it all works and what to put on it, though (I used a slightly over-engineered template 😅).

Also if anyone knows how to make images show up in the link card, that would be cool!

For All Mankind ❌

All For One Man ✅

Literally all the biggest expenses were from getting it up there in the first place, what’s left is pennies on the dollar out of the total cost. It’s pure profit. Madness.

It’s not handing the reins to anyone, it’s throwing the horse in the woodchipper. Science relies on collaboration and this will hurt us all globally.

The goal is plainly and literally to cut the number of people involved in basic science in the US by 70%

Graphs showing 25 years of budgets for the National Institute of Health, NASA, and the NSF. In all cases, the proposed budget for next year is far, far below any year of the previous quarter century.

There are 2 previous historical cases of countries destroying their science and universities, crippling them for decades: Lysenkoism in the USSR and Nazi Germany. The Trump administration will be the 3rd.
It's not just budgets but research, institutions, expertise, and training the next generation.

My partner never even got a desk at GISS before they kicked everyone out. And she’s got out relatively lightly compared to people who’ve built their entire lives around it 😠

@alessandraquig.bsky.social

Propaganda we're not falling for:

🦈Sharks are scary (amazing creatures, important for the ecosystem)
🌊Benthic invertebrates aren’t cute (they are precious)
🪨Geology is boring (rocks ROCK)
📈Long-term data sets aren't important (they are SO important!)
🔬Science isn’t cool (science rules, obviously)

The NASA budget req would end NASA's participation in ESA's Rosalind Franklin Mars rover (as anticipated) along with MSR, NASA's two Venus probes (DAVINCI and VERITAS) and coop with ESA on theirs (EnVision), and somewhat surprisingly OSIRIS-APEX and Juno, both already in space.

a man with a beard is talking to another man in a superhero costume Alt: Thor saying "is it though?" from Thor Ragnarok

They're talking about pushing a planned review of HE to the end of this year, my fear is that it ends up in the long grass!