Open access
Date
2023-03-06Type
- Working Paper
ETH Bibliography
yes
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Abstract
It is shown that any theory that has certain properties has a measurement problem, in the sense that it makes predictions that are incompatible with measurement outcomes being absolute (that is, unique and non-relational). These properties are Bell Nonlocality, Information Preservation, and Local Dynamics. The result is extended by deriving Local Dynamics from No Superluminal Influences, Separable Dynamics, and Consistent Embeddings. As well as explaining why the existing Wigner's-friend-inspired no-go theorems hold for quantum theory, these results also shed light on whether a future theory of physics might overcome the measurement problem. In particular, they suggest the possibility of a theory in which absoluteness is maintained, but without rejecting relativity theory (as in Bohm theory) or embracing objective collapses (as in GRW theory). Show more
Permanent link
https://doi.org/10.3929/ethz-b-000651738Publication status
publishedExternal links
Journal / series
arXivPages / Article No.
Publisher
Cornell UniversityEdition / version
v1Subject
Quantum Physics (quant-ph); FOS: Physical sciencesOrganisational unit
03781 - Renner, Renato / Renner, Renato
Funding
188541 - Information-theoretic limits to time measurements (SNF)
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ETH Bibliography
yes
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