Hamid Ohadi
@polariton.bsky.social
55 followers 90 following 21 posts
Reader at University of St Andrews. Physics, polaritons, light-matter interactions. Views my own.
Posts Media Videos Starter Packs
Hamid Ohadi @polariton.bsky.social · Jul 3
‪
New paper: We combine computation and synthesis to design and discover intercalated layered hybrid perovskites with tunable structures and optoelectronic properties.
With Julia Payne | Grateful to @leverhulme.ac.uk for funding. @physastrostand.bsky.social
#2DPerovskites
Advancing intercalation strategies in layered hybrid perovskites by bringing together synthesis and simulations - Nature Communications
A parallel experimental and computational approach was used to predict and prepare intercalated, layered hybrid perovskites, highlighting the breadth and flexibility of intercalation.
www.nature.com
2 2
Reposted by Hamid Ohadi
uniofstandrews.bsky.social
University of St Andrews @uniofstandrews.bsky.social · Jun 24
New tool to identify ‘toxic’ green books

Developed by @physastrostand.bsky.social and the University of St Andrews Libraries and Museum, the new device is transforming how cultural heritage institutions identify toxic pigments in historic books.

Read more 👇

ow.ly/WAil50Wflrf

#EverToExcel
5 11
Hamid Ohadi @polariton.bsky.social · Jun 12
Couldn’t resist pointing out the focusing of the light from the wine glass. Very appropriate. And congratulations for your new position!
1 1
Hamid Ohadi @polariton.bsky.social · Jun 10
Are you interested in Rydberg physics, but in solid state? Come and join my brilliant colleague’s group in Durham, Prof Matthew Jones for a postdoc!

@durhamqlm.bsky.social
Postdoctoral Research Associate in Quantum Light and Matter
Click the link provided to see the complete job description.
tinyurl.com
1 2
Hamid Ohadi @polariton.bsky.social · Jun 3
New paper: a novel microcavity fabrication technique using birefringent 2D perovskites, enabling asymmetric topological polariton states without geometric structuring.
With Pavlos Savvidis | Grateful to @leverhulme.ac.uk for funding.
#Polaritons #TopologicalPhotonics #2DPerovskites
Unveiling asymmetric topological photonic states in anisotropic 2D perovskite microcavities - Light: Science & Applications
Unconventional topological states emerge in anisotropic perovskite microcavities via strong photonic Rashba-Dresselhaus coupling, enabling synthetic gauge fields and non-zero Berry curvature for advan...
www.nature.com
1 1
Hamid Ohadi @polariton.bsky.social · Jun 2
“Those receiving CAR-T-cell therapy also lived an average of 2.4 months longer”

I’m not sure impressive is the right word here.
Hamid Ohadi @polariton.bsky.social · Jun 1
I usually agree with your bullshit calls, but not this one. Calculating quantum stuff precisely ≠ understanding it. Geocentric astronomy predicted planets for centuries (with epicycles) but got the whole understanding wrong.
1
Reposted by Hamid Ohadi
dangaristo.bsky.social
Dan Garisto @dangaristo.bsky.social · May 30
Presidential budget is out. Here's NSF. Biggest cut, by amount, is $1 billion, or 66.8%, from MPS (Physics & Math directorate). nsf-gov-resources.nsf.gov/files/00-NSF...
MPS budget
30 500 860
Hamid Ohadi @polariton.bsky.social · May 30
I feel sorry for my colleagues working there. 7% success rate is a nonstarter for early careers…
1 10
Hamid Ohadi @polariton.bsky.social · May 29
😉
valerioscarani.bsky.social
Valerio Scarani @valerioscarani.bsky.social · May 29
Have you got a PhD offer from a country that may revoke your visa? Let's have a chat 😉
Hamid Ohadi @polariton.bsky.social · May 22
ChatGPT’s response to my grant rejection frustration: “allow yourself space to feel the disappointment properly. You don’t need to move straight to silver linings. This is part of the emotional cost of doing high-risk, high-reward research—and it’s ok to feel knocked by it.” pretty good I thought.
Hamid Ohadi @polariton.bsky.social · May 4
Happy birthday! What a lovely man, and how lucky you have him there!
1
Reposted by Hamid Ohadi
xkcd.com
Randall Munroe @xkcd.com · Apr 25
PhD Timeline xkcd.com/3081
600 21K 60K
Hamid Ohadi @polariton.bsky.social · Apr 5
I highly recommend listening to Sean Carrol’s @seanmcarroll.bsky.social podcast with Francoise Collet on deep learning and intelligence if you’d like to understand why LLM has nothing to do with intelligence, and why it never reach AGI. podcasts.apple.com/gb/podcast/s...
François Chollet on Deep Learning and the Meaning of Intelligence
Podcast Episode · Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas · 24/06/2024 · 1h 42m
podcasts.apple.com
Hamid Ohadi @polariton.bsky.social · Apr 4
We have the stable genius’s formula: max(trade deficit / total export / 2, 10)

www.theverge.com/news/642620/...
Trump’s new tariff math looks a lot like ChatGPT’s
ChatGPT may be the White House’s latest economic advisor.
www.theverge.com
1
Hamid Ohadi @polariton.bsky.social · Mar 28
Should we give Google another 21 years to add the option of “sort by number of citations” in Google Scholar?
1 1
Hamid Ohadi @polariton.bsky.social · Mar 28
Perhaps a good start to improving national security would be to stop discussing war plans on Signal.
1
Hamid Ohadi @polariton.bsky.social · Mar 19
This is one expensive PR machine
2
Hamid Ohadi @polariton.bsky.social · Mar 18
In APS standards this is like filling a stadium…
3
Hamid Ohadi @polariton.bsky.social · Mar 15
Shameful! However, the truth doesn’t need as much advertising…
1
Hamid Ohadi @polariton.bsky.social · Mar 14
You’d think some of this would’ve picked up by the reviewers! But no, it’s a nature paper…
1
Hamid Ohadi @polariton.bsky.social · Mar 12
This is the equivalent of flat earther becoming the head of IoP.
Hamid Ohadi @polariton.bsky.social · Mar 11
an “idiot” is someone who consistently ignores logic, refuses to learn from mistakes, or dismisses facts in favour of baseless opinions.

If voting twice for Trump is not the exact definition of stupid, I’m not sure what is really…
2
Hamid Ohadi @polariton.bsky.social · Mar 3
The criteria to be elected is that they: “must have made 'a substantial contribution to the improvement of natural knowledge, including mathematics, engineering science and medical science”. Perhaps it’s time to review that as well because I don’t see that here: scholar.google.com/citations?us...
Elon Musk
‪CEO, Spacex,Hawthorne, 1 Rocket Rd, United States‬ - ‪‪Cited by 3,928‬‬
scholar.google.com
4
Reposted by Hamid Ohadi
henrylegg.bsky.social
Henry Legg @henrylegg.bsky.social · Feb 28
I had made Microsoft Quantum aware of issues before publication of this latest Nature paper (which uses it tune up their devices).

Since they seem to not care, I have make these issues public.

In short: The topological gap protocol and all claims based on it are flawed.

arxiv.org/abs/2502.19560
Comment on "InAs-Al hybrid devices passing the topological gap protocol", Microsoft Quantum, Phys. Rev. B 107, 245423 (2023)
The topological gap protocol (TGP) is presented as "a series of stringent experimental tests" for the presence of topological superconductivity and associated Majorana bound states. Here, we show that...
arxiv.org
2 19 67