A no-go theorem for the persistent reality of Wigner’s friend’s perception

Wigner’s friend is a thought experiment in theoretical quantum physics that challenges our understanding of quantum theory. The authors present a no-go theorem constraining the structure of probabilities in such a thought experiment and analyze the validity of the three particular assumptions accord...

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Autores principales: Philippe Allard Guérin, Veronika Baumann, Flavio Del Santo, Časlav Brukner
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/d7aa76232a2845cfaba4197fc31a10ee
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Sumario:Wigner’s friend is a thought experiment in theoretical quantum physics that challenges our understanding of quantum theory. The authors present a no-go theorem constraining the structure of probabilities in such a thought experiment and analyze the validity of the three particular assumptions according to various interpretations of quantum mechanics.