5 papers
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 ins…
Emergent Quantum Dynamics as a Bayesian Inference Problem: A Critical Analysis
Thales B. S. F. Rodrigues, Lucas L. Brugger, Vinicius G. Valle +2
Coarse-grained descriptions can be used to account for physical processes in which information is lost or not entirely accessible. In this paper, we start by proposing a connection…
No-local-broadcasting theorem for non-signalling behaviours and assemblages
Adrian Solymos, Carlos Vieira, Cristhiano Duarte +1
The no-broadcasting theorem is a fundamental result in quantum information theory. It guarantees that a class of attacks on quantum protocols, based on eavesdropping and indiscrimi…
Generalising Aumann's Agreement Theorem
Matthew Leifer, Cristhiano Duarte
According to Aumann's celebrated theorem, rational agents cannot agree to disagree. In other words, agents who once shared a common prior probability distribution and who have comm…
Recasting Schrödinger's Cat Thought Experiment as a Remote Measurement Problem
Lucas L. Brugger, Cristhiano Duarte, Bruno F. Rizzuti
With 2025 being declared the Year of Quantum Science and Technology, our contribution seeks to provide a fresh perspective on Schrödinger's cat thought experiment. We reinterpret…