My top five "more people should look into that" topics in my field (theoretical high energy physics): 1. String duals of gauge theories 2. Stochastic quantization of gauge theories 3. Phase space methods in QFT 4. String field theory 5. Schwinger's action principle What is your list? ⚛️🧪

My top five "more people should look into that" topics in my field (theoretical high energy physics): 1. String duals of gauge theories 2. Stochastic quantization of gauge theories 3. Phase space methods in QFT 4. String field theory 5. Schwinger's action principle What is your list? ⚛️🧪

Physicists be like ⚛️🧪

What was the most interesting development this year in your research area? In holography, my vote would go for this and (even more) the subsequent baby universe debate. www.quantamagazine.org/cosmic-parad... ⚛️🧪

Steve Hsu predicts that in the next 15 years, AI will take Ed Witten's place as the oracle figure ⚛️🧪

What are the prospects of AI in physics? Will it generate more progress, or more noise? I sat down with two physicists, Stephen Hsu and Jonathan Oppenheim. Steve is an optimist while Jonathan is 'curmudgeonly' about AI. The discussion was fascinating! ⚛️🧪 www.youtube.com/watch?v=BRuD...

Recently, a physics paper whose central idea came from AI was published in a peer reviewed journal. How good is AI as a physicist? Is it time for us to hang up our boots already? I got in the absolute weeds to find out ⚛️🧪 nirmalyakajuri.substack.com/p/ais-first-...

Recently, a physics paper whose central idea came from AI was published in a peer reviewed journal. How good is AI as a physicist? Is it time for us to hang up our boots already? I got in the absolute weeds to find out ⚛️🧪 nirmalyakajuri.substack.com/p/ais-first-...

New Post! Multiverse is the one physics idea that broke confinement and exploded into popular consciousness. But if you only know of the multiverse from Marvel movies, it will come as a surprise that there isn’t just one multiverse in physics, but three.. ⚛️🧪 open.substack.com/pub/nirmalya...

Gave Chatgpt some tedious physics computations to do. It returned the right answer but complained just like a real student: "This is straightforward but tedious." "I grinded through the algebra." AGI confirmed

I tried looking back at the good old days, but all I saw was lockdowns and sourdough breads. I guess hindsight really is 2020.

How often do you find yourself wishing for a newsletter that covered fundamental physics in way that was accessible but not dumbed down? Pretty often, I am sure! Well, here it is. My free newsletter--"The Spacetime Beat". Enjoy! nirmalyakajuri.substack.com ⚛️🧪

Congratulations @jfdonoghue.bsky.social! Most well deserved. ⚛️🧪

"My taxes fund your 🧪 research, I will decide what you work on" MAGA_Rob37 my good man first of all I work in India. Pretty sure your taxes don't fund my research. Second of all I have no funds can you actually send some

"My taxes fund your 🧪 research, I will decide what you work on" MAGA_Rob37 my good man first of all I work in India. Pretty sure your taxes don't fund my research. Second of all I have no funds can you actually send some

"Black holes give off the impression of being dark and brooding, absorbing all the light around them. But they are secretly musical." I wrote about the music of black holes in my latest post. 🧪⚛️ open.substack.com/pub/nirmalya...

The 2025 Nobel Prize in Physics goes to John Clarke, Michel Devoret, and John Martinis — “for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit.” Here's what I understand of their work ⚛️🧪🧵

Why are there so many books on pop science 🧪 but so few on pop (academic) philosophy ?

AI will never be as smart as humans I say while making yet another decision prompted by algorithms

What counts as a quantum measurement? ⚛️

The existence of Ringo Starr implies the existence of ringing black holes. ⚛️🧪

4459 Scientists from around the world have signed a statement on Gaza. The list includes 14 Nobel Prize winners, 5 Fields medalists, 21 Breakthrough Prize winners, and 34 Dirac Medalists. t.co/bSC7HmJdso

Hey, I'm not saying this is the single greatest astronomy book ever written. I'll let others come to realize that on their own.

Motivated by @seanmcarroll.bsky.social 's thread about his ongoing QM course, I am also going to maintain an online journal here of my ongoing course "Special Topics in Quantum Mechanics." ⚛️🧪🧵

Very cool

Math books are like Examples of group: Example 1: Integers under addition Example 2: Tarski Monster group 🧪⚛️

🙂

Tim Nguyen breaks his silence on the Eric Weinstein episode. Highlights: EW implying legal action against a podcast Tim critiqued GU in, Curt Jaimungal revoking his invitation to Tim, Sabine deleting Tim’s post from her blog but Lex Fridman cancelling EW timothynguyen.org/2025/08/21/p... ⚛️🧪

This week's post is about why spherical cows are physics' mascot ⚛️🧪 open.substack.com/pub/nirmalya...

This week's post is about why spherical cows are physics' mascot ⚛️🧪 open.substack.com/pub/nirmalya...

Great thread on resurgence!

Boiling a black hole

Thanks @mmylova.bsky.social for creating the Cosmo feed! It's really improved my Bsky experience. Suggest others to follow it too: bsky.app/profile/mmyl...

Nice thread about Robertson and Walker of the FRW model, with a cameo from Fermi!

New post on the occasion of Roger Penrose's birthday. Happy Birthday, Sir Roger! How Roger Penrose trapped the Singularity open.substack.com/pub/nirmalya...

When Ed Witten is your TA (From Zee's QFT in a nutshell) ⚛️

We mock flat earthers, but there are many examples where people mistake linearizations for the full story, and are still taken somewhat seriously. 🧪

I am not a big newsletter subscriber (even though I have a sporadic one of my own) but check out @kajunut.bsky.social‬'s new Substack for the good oil on the status of string theory and fun facts about high energy physics physics nirmalyakajuri.substack.com

String theory at LHC? New post over at substack. open.substack.com/pub/nirmalya...

“I have lost valuable information, Mr. Marlowe,” she said, “at a joint they call the Black Hole. I need you to get it back for me.” A chill went down my spine like a trickle of liquid Helium.

Should interpretations of quantum mechanics be taught in quantum mechanics courses? If so, how long should the instructor spend on interpretations-- just a brief mention, or one or more lectures? 🧪⚛️

Loeb: we must stick to the facts, not judge things based on public opinion. Also Loeb: Look at how many likes and messages my ideas get! I must be doing it right.

Christian Ferko, Hassaan Saleem and I went to Sam Gregson's Bad Boy of Science propaganda to talk about string theory, geometric unity and Sabine Hossenfelder's bizarre attempts to equate the two youtu.be/213qm_KTJkQ?... ⚛️🧪

I have been in the PI business long enough to know she was trouble the moment she walked in. “Have a seat” I told her. But she fidgeted like a cat on a hot tin roof, never at one place. “I have lost some valuable information” she said, “at a joint they call the Black Hole.” 🧪⚛️🧵

Being a scientist means contemplating the breathtaking mysteries of nature with profound wonder, and asking "Can I get a paper out of this?" 🧪

Stephen Hawking was so good at computing path integrals in his head that someone gushed to Feynman about how impressive his feats were. Not quite as impressive as inventing path integrals, pointed out Feynman, who had invented path integrals. 🧪⚛️

Sabine on normal scientists: grifters misleading the public for money Sabine on Avi "alien hunter" Loeb: a little too eager ⚛️🧪

There's always that one guy in the audience

Bit of academic lore about me. I discovered a fatal error in my thesis *after* having submitted it. nirmalyaphysics.wordpress.com/2022/08/13/h...

Going on Jubilee with 20 people who use the +--- metric ⚛️