Hide metadata

dc.contributor.authorMjelva, Jørn Kløvfjell
dc.date.accessioned2017-09-21T22:28:05Z
dc.date.available2017-09-21T22:28:05Z
dc.date.issued2017
dc.identifier.citationMjelva, Jørn Kløvfjell. Causality and Non-Locality in Quantum Mechanics: An argument for retrocausation. Master thesis, University of Oslo, 2017
dc.identifier.urihttp://hdl.handle.net/10852/58421
dc.description.abstractIt has been claimed that quantum mechanics is a non-local theory, i.e., that the predictions of quantum mechanics are at odds with a conception of the world where all the interactions are mediated by local mechanisms. The cited reason is the violation of the Bell inequality in cases where measurements are performed on quantum systems of particles that have interacted in the past. Quantum mechanics predicts that the state of the particles in such a system are correlated, a result obtained from considering a thought-experiment often known as EPR. In this thesis, I will argue that the violation of the Bell inequality in EPR forces us to either accept that causes sometimes act both backwards and forwards in time, or give up some widely-held assumptions about causal relations or the role of causal explanations. First, I will present three principles regarding causality that I take be widely accepted. I will then present the background for the claim the quantum mechanics is a non-local theory, and discuss the implications of non-local causal influences in light of the Special Theory of Relativity. One argument against a causal explanation of the EPR-correlations will be discussed, and different models for the causal structure of EPR will be assessed. I will argue that a retrocausal model – models that include instances of retrocausation, where the direction of causation is the opposite of the direction of time – is the only viable option if we want to uphold the three principles presented in chapter 1. I will discuss the plausibility of rejecting one of these principles, and argue that at least one of the can be restricted in a way that still accounts for our commitment to it. Finally, I will assess the non-local models against the retrocausal models, and argue that a retrocausal model offers interpretational advantages over the non-local alternatives.eng
dc.language.isoeng
dc.subjectSpecial Theory of Relativity
dc.subjectSeparability
dc.subjectPhilosophy of Science
dc.subjectQuantum Mechanics
dc.subjectDirection of causation
dc.subjectLocality
dc.subjectEPR
dc.subjectCausation
dc.subjectRelativity
dc.subjectTime
dc.subjectMetaphysics
dc.subjectPrinciple of the Common Cause
dc.subjectPhilosophy of Physics
dc.subjectRetrocausation
dc.subjectNon-locality
dc.subjectcausal asymmetry
dc.subjectCausal Markov Condition
dc.subjectQuantum Entanglement
dc.subjectScreening-off Criterion
dc.subjectBayes nets-theories
dc.subjectCausality
dc.subjectBell
dc.subjectCausal models
dc.titleCausality and Non-Locality in Quantum Mechanics: An argument for retrocausationeng
dc.typeMaster thesis
dc.date.updated2017-09-21T22:28:05Z
dc.creator.authorMjelva, Jørn Kløvfjell
dc.identifier.urnURN:NBN:no-61126
dc.type.documentMasteroppgave
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/58421/1/Causality-and-Non-Locality-in-Quantum-Mechanics.pdf


Files in this item

Appears in the following Collection

Hide metadata