2015/09/15 by Daniel Filan, Filan, Daniel, J. J. Hope +2
Physics and Astronomy · #FOS: Physical sciences #Quantum Mechanics and Applications #Quantum Physics (quant-ph) #Quantum and Classical Electrodynamics #Relativity and Gravitational Theory #quant-ph
paper · pdf · doi:10.48550/arxiv.1509.04398
5 pages
arxiv created 2015/09/15 · openalex publication_date 2015/09/15 · arxiv updated 2015/09/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
In this paper we address the question of whether it is possible to obtain evidence that we are in a superposition of different worlds, as suggested by the relative state interpretation of quantum mechanics. We find that it is impossible to find definitive proof, and that if one wishes to retain reliable memories of which world one was in, no evidence at all can be found. We then show that even for completely linear quantum state evolution, there is a test that can be done to tell if you can be placed in a superposition.