Hamid Ohadi's Avatar

Hamid Ohadi

@polariton.bsky.social

Reader at University of St Andrews. Physics, polaritons, light-matter interactions. Views my own.

54 Followers  |  90 Following  |  21 Posts  |  Joined: 07.02.2024  |  1.8882

Latest posts by polariton.bsky.social on Bluesky

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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.

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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

03.07.2025 11:11 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1
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New tool to identify β€˜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 πŸ‘‡

ow.ly/WAil50Wflrf

#EverToExcel

24.06.2025 10:43 β€” πŸ‘ 11    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0

Couldn’t resist pointing out the focusing of the light from the wine glass. Very appropriate. And congratulations for your new position!

12.06.2025 15:53 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Postdoctoral Research Associate in Quantum Light and Matter Click the link provided to see the complete job description.

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

10.06.2025 12:33 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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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...

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

03.06.2025 07:23 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

β€œThose receiving CAR-T-cell therapy also lived an average of 2.4 months longer”

I’m not sure impressive is the right word here.

02.06.2025 12:27 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I usually agree with your bullshit calls, but not this one. Calculating quantum stuff precisely β‰  understanding it. Geocentric astronomy predicted planets for centuries (with epicycles) but got the whole understanding wrong.

01.06.2025 08:39 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
MPS budget

MPS budget

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...

30.05.2025 20:20 β€” πŸ‘ 864    πŸ” 501    πŸ’¬ 31    πŸ“Œ 181

I feel sorry for my colleagues working there. 7% success rate is a nonstarter for early careers…

30.05.2025 20:45 β€” πŸ‘ 10    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

πŸ˜‰

29.05.2025 10:49 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

ChatGPT’s response to my grant rejection frustration: β€œallow 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 researchβ€”and it’s ok to feel knocked by it.” pretty good I thought.

22.05.2025 21:43 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Happy birthday! What a lovely man, and how lucky you have him there!

04.05.2025 06:13 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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PhD Timeline xkcd.com/3081

25.04.2025 15:32 β€” πŸ‘ 60715    πŸ” 20857    πŸ’¬ 611    πŸ“Œ 840
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FranΓ§ois Chollet on Deep Learning and the Meaning of Intelligence Podcast Episode Β· Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas Β· 24/06/2024 Β· 1h 42m

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...

05.04.2025 06:28 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Trump’s new tariff math looks a lot like ChatGPT’s ChatGPT may be the White House’s latest economic advisor.

We have the stable genius’s formula: max(trade deficit / total export / 2, 10)

www.theverge.com/news/642620/...

04.04.2025 21:21 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Should we give Google another 21 years to add the option of β€œsort by number of citations” in Google Scholar?

28.03.2025 12:25 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Perhaps a good start to improving national security would be to stop discussing war plans on Signal.

28.03.2025 06:36 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This is one expensive PR machine

19.03.2025 07:57 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

In APS standards this is like filling a stadium…

18.03.2025 07:22 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Shameful! However, the truth doesn’t need as much advertising…

15.03.2025 18:52 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

You’d think some of this would’ve picked up by the reviewers! But no, it’s a nature paper…

14.03.2025 07:08 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This is the equivalent of flat earther becoming the head of IoP.

12.03.2025 18:46 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

an β€œidiot” 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…

11.03.2025 18:56 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Elon Musk β€ͺCEO, Spacex,Hawthorne, 1 Rocket Rd, United States‬ - β€ͺβ€ͺCited by 3,928‬‬

The criteria to be elected is that they: β€œmust 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...

03.03.2025 10:50 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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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...

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

28.02.2025 06:32 β€” πŸ‘ 68    πŸ” 19    πŸ’¬ 2    πŸ“Œ 4

@polariton is following 20 prominent accounts