Quantum States of Fields for Quantum Split Sources
General Relativity and Quantum Cosmology
2023-03-22 v2 Quantum Physics
Abstract
Field mediated entanglement experiments probe the quantum superposition of macroscopically distinct field configurations. We show that this phenomenon can be described by using a transparent quantum field theoretical formulation of electromagnetism and gravity in the field basis. The strength of such a description is that it explicitly displays the superposition of macroscopically distinct states of the field. In the case of (linearised) quantum general relativity, this formulation exhibits the quantum superposition of geometries giving rise to the effect.
Cite
@article{arxiv.2207.10592,
title = {Quantum States of Fields for Quantum Split Sources},
author = {Lin-Qing Chen and Flaminia Giacomini and Carlo Rovelli},
journal= {arXiv preprint arXiv:2207.10592},
year = {2023}
}
Comments
27 pages, 1 figure; v.2: Added an appendix on the inner product of the states, improved discussion. To appear in Quantum