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Effective theory approach to the measurement problem

Icefield, William (2020) Effective theory approach to the measurement problem. [Preprint]

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Abstract

One understanding of the Niels Bohr's interpretation of quantum mechanics suggests that the measurement problem arises because an observer description of reality is incomplete due to lack of complete access to an entire system of observed and observer. In general, an additional and external measuring observer is required to access the entire system. Inevitable entanglement between observers, measurement apparatus and measured objects is key to such an understanding of the measurement problem. Quantum mechanics only provides a complete 'incomplete' description of reality. Nevertheless, some issues, especially providing an account of why a preferred measurement basis arises, remain. Replacing relations between observed and observer in relational quantum mechanics with those between effective (approximate) theories, one arrives at a more clear understanding of why the measurement problem arises and how a preferred measurement basis is determined. The measurement problem exists because of measurement apparatus limitations, which only allow us to formulate and verify effective theories that inevitably neglect some details of nature.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Icefield, Williamwilliamicefield@gmail.com
Keywords: measurement problem, interpretations of quantum mechanics, Niels Bohr, relational quantum mechanics, infinite regress, effective theory, quantum gravity
Subjects: Specific Sciences > Physics > Quantum Gravity
Specific Sciences > Physics > Quantum Field Theory
Specific Sciences > Physics > Quantum Mechanics
Depositing User: William Icefield
Date Deposited: 18 Jul 2020 22:56
Last Modified: 18 Jul 2020 22:56
Item ID: 17483
Subjects: Specific Sciences > Physics > Quantum Gravity
Specific Sciences > Physics > Quantum Field Theory
Specific Sciences > Physics > Quantum Mechanics
Date: 8 July 2020
URI: https://philsci-archive-dev.library.pitt.edu/id/eprint/17483

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