Structure and statistical properties of the semiclassical Einstein equations
General Relativity and Quantum Cosmology
2024-12-25 v1 Quantum Physics
Abstract
We treat the semiclassical Einstein equation as a quantum-classical hybrid and demonstrate the formal equivalence of its two derivation methods. This approach identifies the left-hand side of the equation as the expectation value of the Einstein tensor given the state of matter, and not its actual value in each realization of the set-up. As a result, standard criticisms of semiclassical gravity do not apply, and stochastic gravity emerges as a necessary extension
Cite
@article{arxiv.2412.18213,
title = {Structure and statistical properties of the semiclassical Einstein equations},
author = {Daniel R. Terno},
journal= {arXiv preprint arXiv:2412.18213},
year = {2024}
}
Comments
a contribution to Quantum gravity and computation, edited by Dean Rickles and Hatem Elshatlawy