I On the Quantum Mechanics of Entropic Forces

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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

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could spin foam also work ?