Daniel Carney
@fourform.bsky.social
theoretical physics. measurement at the limits of quantum mechanics and gravity (and sometimes both). Scientist @ Berkeley National Lab. http://qquest.lbl.gov/~carney/
If you want to hear me ramble about quantum noise and cosmic neutrinos, gravitational waves, and axions over zoom, this is tomorrow 4pm ET: sites.google.com/view/hepastr...
HEP/Astro Results Forum
Our mission is to host in-depth and unbiased overview talks on recent experimental/observational results of interest, given by experts in the field, to a broad audience of particle physicists and astr...
sites.google.com
Gravity could come from gravitons, like light comes from photons. Or maybe, like sound waves in a gas, it could come from the entropic dynamics of some microscopic thermal system. But could that really work? And could it be tested? We think so. arxiv.org/abs/2502.17575
On the quantum mechanics of entropic forces
It was conjectured thirty years ago that gravity could arise from the entropic re-arrangement of information. In this paper, we offer a set of microscopic quantum models which realize this idea in det...
arxiv.org
Could gravity be "fundamentally classical"? Akira Matsumura and I analyzed Oppenheim (@postquantum.bsky.social) et al.'s proposal. tl;dr: A. it appears to have Lorentz-covariant scattering B. 2—>2 scattering differs at O(1) from the usual Rutherford/Newton answer arxiv.org/abs/2412.04839
Classical-quantum scattering
We analyze the framework recently proposed by Oppenheim et al. to model relativistic quantum fields coupled to relativistic, classical, stochastic fields (in particular, as a model of quantum matter c...
arxiv.org
