theoretical physics. measurement at the limits of quantum mechanics and gravity (and sometimes both).
Joined June 2009
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116 Photos and videos
Daniel Carney retweeted
Hercules and Nessus, by Giambologna, 1599
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May 25
As an American who has been in this specific competition for my entire life, the main result has been that my work is better precisely because I had to compete against the rest of the world for my jobs
Artificially restricting open competition is un-American to the core
May 23
My hot take is that it's OK for Americans to not want to compete against the entire world for a job in their hometown.
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Daniel Carney retweeted
May 21
I think your commentary on this stuff would be improved by learning something about what professional mathematicians do.
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May 5
"Why doesn't a charge sitting still on the surface of Earth radiate" has many good answers but this paper is my new favorite.
If the earth was big enough that the radiation zone of the charge was within the "approximately flat" local region, the earth would be a black hole 😎
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Apr 30
Here is a thought experiment on the "physics is broken/dead/stuck" discourse that keeps showing up. Suppose Steve Weinberg was born in ~2006. Would he go into physics today? If so, what field?
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Apr 27
Filed under "I should have paid more attention to chemistry in high school"
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Apr 21
2024: proposal to make a gas pressure measurement by literally counting every collision with a sensor
2026: measurement.
Could not be happier to see this work exactly like we drew it up
arxiv.org/abs/2604.18371
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Daniel Carney retweeted
We invite applications for Research Fellow positions as part of a new initiative to be launched in late 2026 at the interface of quantum information theory and gravity! Please RT and let potentially interested researchers know. 1/
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Daniel Carney retweeted
Apr 8
Dude, are there non-trivial non-pathological Lorentz-covariant Lindbladians in QFT or not? Are the current no-go arguments like Myrvold [1709.03219] as strong as we can hope for? Is the situation better understood in classical field theory?
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Apr 7
this morning i have received emails about:
-nuclear winter
-claude can hack anything
-fluffy animals wearing berkeley physics shirts
this era is so fucking weird
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Mar 30
Gravity is probably quantized into gravitons.
If not, however, there are experimental consequences. In particular, some level of irreversibility/noise. We finally classified ~all such models and calculated the noise.
arxiv.org/abs/2603.26075
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Daniel Carney retweeted
Mar 24
Come to @UCSDPhysics. We will continue to have human grad students.
The AI grad student: anthropic.com/research/vibe-…
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Mar 23
When I was a student, string theory was the dominant paradigm, so I tried to work on other things for variety
Now in 2026 I feel like some antiquated defender of the orthodoxy for even mentioning that it could in fact be the correct description of nature
Mar 23
58 years after it first appeared, string theory remains the most popular candidate for the “theory of everything.” This is much to the chagrin of its rather vocal critics. @nattyover reports: quantamagazine.org/are-strin…
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Mar 16
For any quantum gravity aficionados at APS, we are having a session on experiments — tabletop and quantum simulation — this afternoon.
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Mar 12
In a world full of bullshit AI grift stuff, I think this paper is a refreshing and serious piece of work.
They set up a complex set of agents and use them to automate the planning and execution of many stages of an experiment. Clear path to real use case for this stuff.
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Mar 12
Paper: arxiv.org/abs/2603.08801
If any superconducting people out there have further thoughts on this, I'd be interested to hear them
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Mar 6
I am getting in-n-out in Waco, TX right now. This feels sacrilegious in a way I can’t quite describe.
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Mar 3
It's wild how badly people are thinking about the "student/postdoc/professor vs AI" thing.
Yeah, an AI might be better than a student if you equip the student with a pencil and paper.
But you know what's even better? An AI being run by a good student.
Mar 3
AI can already do social science research better than most professors with PhDs. And, for the first time in my life, I really have no idea what happens in five years.
Things are changing already, we just need to wake up.
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