Measurement and preparation protocols for quantum field theory on curved spacetimes
General Relativity and Quantum Cosmology
2025-09-01 v1
Abstract
In this conference proceedings contribution, I describe work in progress concerning two problems in the measurement theory of quantum fields. First, it is proved that all local observables can be obtained from local measurement schemes. Second, I describe a protocol for preparing a Hadamard local product state of given Hadamard states relative to the local algebras of specified spacelike separated regions.
Cite
@article{arxiv.2508.21426,
title = {Measurement and preparation protocols for quantum field theory on curved spacetimes},
author = {Christopher J. Fewster},
journal= {arXiv preprint arXiv:2508.21426},
year = {2025}
}
Comments
5pp. Contribution to the proceedings of The 24th International Conference on General Relativity and Gravitation (GR24) and the 16th Edoardo Amaldi Conference on Gravitational Waves (Amaldi16), based on a talk given in session D4