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Bibliographic Details
Main Authors: Ormrod, Nick, Barrett, Jonathan
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2401.18005
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author Ormrod, Nick
Barrett, Jonathan
author_facet Ormrod, Nick
Barrett, Jonathan
contents We develop a new interpretation of quantum theory by combining insights from extended Wigner's friend scenarios and quantum causal modelling. In this interpretation, which synthesizes ideas from relational quantum mechanics and consistent histories, events obtain relative to a set of systems, and correspond to projectors that are picked out by causal structure. We articulate these ideas using a precise mathematical formalism. Using this formalism, we show through specific examples and general constructions how quantum phenomena can be modelled and paradoxes avoided; how different scenarios may be classified and the framework of quantum causal models extended; and how one can approach decoherence and emergent classicality without relying on quantum states.
format Preprint
id arxiv_https___arxiv_org_abs_2401_18005
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Quantum influences and event relativity
Ormrod, Nick
Barrett, Jonathan
Quantum Physics
We develop a new interpretation of quantum theory by combining insights from extended Wigner's friend scenarios and quantum causal modelling. In this interpretation, which synthesizes ideas from relational quantum mechanics and consistent histories, events obtain relative to a set of systems, and correspond to projectors that are picked out by causal structure. We articulate these ideas using a precise mathematical formalism. Using this formalism, we show through specific examples and general constructions how quantum phenomena can be modelled and paradoxes avoided; how different scenarios may be classified and the framework of quantum causal models extended; and how one can approach decoherence and emergent classicality without relying on quantum states.
title Quantum influences and event relativity
topic Quantum Physics
url https://arxiv.org/abs/2401.18005