Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:1910.12253

What kind of a friend is Wigner's?

‎Louis Marchildon

Published Oct 27, 2019• 0 citations
arXivHTMLPDF

Abstract

Proietti et al. (arXiv:1902.05080) reported on an experiment designed to settle, or at least to throw light upon, the paradox of Wigner's friend. Without questioning the rigor or ingenuity of the experimental protocol, I argue that its relevance to the paradox itself is rather limited.
DOI
10.48550/arxiv.1910.12253

Related papers

A Feasible Experiment Concerning the Schrödinger's Cat and Wigner's Friend Paradoxes

Fred H. Thaheld

Physics Essays•Jun 1, 2001•2 citations

The Firewall Paradox Is Wigner’s Friend Paradox

Ladina Hausmann, Renato Renner

arXiv:2504.03835•Springer Series in Astrophysics and Cosmology•Jan 1, 2025•2 citations

Wigner's friend paradox: does objective reality not exist?

Aleksandr V. Belinsky

Uspekhi Fizicheskih Nauk•May 1, 2020•8 citations

The Wigner's Friend Paradox Reconsidered: Context, Synchronization, and the Ontology of Identity

Kajetan Młynarski

•Jan 1, 2026•0 citations

Agreement and Compatibility in Wigner's Friend Paradox

Julio C. F. Silva, B. F. Rizzuti, Cristhiano Duarte

There has been an upsurge of interest in the consequences for quantum physics of the so-called Wigner's Friend Paradox. In its original formulation, the paradox has been turned inside out, and virtually every aspect of it has been looked into. Consequently, it is becoming widely accepted that we can find the potentially puzzling consequences of Wigner's thought experiment only in light of its many-parties extensions. Nonetheless, this contribution returns to the source. Reframing the question as an inference problem, we advance a radically Bayesian interpretation that shows no contradiction between Wigner's and Wigner's Friend's descriptions-neither classically nor quantumly. Therefore, with no paradoxical conclusion. In doing so, we flesh out and expose previously untouched aspects of Wigner's thought experiment, in particular, the fact that compatibility and agreement are fundamental to our understanding of it. Also, by conservatively extending Wigner's original setup and incorporating what we call the 'benefit of the doubt', we see how either Wigner's or his Friend's description can be driven to match one another's -- an impossibility if either agent does not keep an open mind.

quant-pharXiv:2605.27424•May 21, 2026•0 citations

Observer-Dependent Reality in Quantum Mechanics: A Critical Review of the Wigner's Friend Paradox and Its Modern Extensions

Chamila Chandrabanu Ekanayake

•Jan 1, 2026•0 citations
There has been an upsurge of interest in the consequences for quantum physics of the so-called Wigner's Friend Paradox. In its original formulation, the paradox has been turned inside out, and virtually every aspect of it has been looked into. Consequently, it is becoming widely accepted that we can find the potentially puzzling consequences of Wigner's thought experiment only in light of its many-parties extensions. Nonetheless, this contribution returns to the source. Reframing the question as an inference problem, we advance a radically Bayesian interpretation that shows no contradiction between Wigner's and Wigner's Friend's descriptions-neither classically nor quantumly. Therefore, with no paradoxical conclusion. In doing so, we flesh out and expose previously untouched aspects of Wigner's thought experiment, in particular, the fact that compatibility and agreement are fundamental to our understanding of it. Also, by conservatively extending Wigner's original setup and incorporating what we call the 'benefit of the doubt', we see how either Wigner's or his Friend's description can be driven to match one another's -- an impossibility if either agent does not keep an open mind.