I On the Quantum Mechanics of Entropic Forces

[kodama]

TL;DR

it from bit

On the Quantum Mechanics of Entropic Forces​

Daniel Carney1,*, Manthos Karydas1, Thilo Scharnhorst1,2, Roshni Singh1,2, and Jacob M. Taylo

Abstract

It was conjectured 30 years ago that gravity could arise from the entropic rearrangement of information. We offer a set of microscopic quantum models which realize this idea in detail. In particular, we suggest a simple mechanism by which Newton’s law of gravity arises from extremization of the free energy of a collection of qubits or oscillators, rather than from the exchange of virtual quanta of a fundamental field. We give both a local and a nonlocal version of the construction and show how to distinguish a range of these entropic models from ordinary perturbative quantum gravity using existing observations and near-term experiments.
Phys. Rev. X 15, 031038 – Published 11 August, 2025

DOI: https://doi.org/10.1103/y7sy-3by1

discuss further details about this

could spin foam also work ?

 

[Neutrin0]

Spin foam could work I’m around half way done reading the paper. but to prove spin foam would take a lot of time to solve the theoretical hurdles one would face and to actually do experiments

 

[Chiara]

The abstract starts with "It was conjectured 30 years ago that gravity could arise from the entropic rearrangement of information."

It seems to me that Jacobson proved that gravity is entropic. He did not conjecture anything. Am I wrong?