Large Grants
    - Introduction
    - Awardees
Mini-Grants
    - Introduction
    - Winners
 
Previous Programs

2020 Consciousness in the Physical World
Awardees

2019 Intelligence in the Physical World
Awardees

2019 Information as Fuel
Awardees

2018 Agency in the Physical World
Awardees; RFP download

2016 Physics of the Observer
Awardees; RFP download

2015 The Physics of What Happens
Awardees; RFP download

2013 Physics of Information
Awardees; RFP download

2010 The Nature of Time
Awardees; RFP download

2008 Foundational Questions in Physics and Cosmology
Awardees; RFP download

2006 Foundational Questions in Physics and Cosmology
Awardees; RFP download

Caslav Brukner
IQOQI Vienna, Austrian Academy of Sciences

Veronika Baumann
IQOQI Vienna, Austrian Academy of Sciences



Project Title

Conscious Encapsulated Observers

Project Summary

Wigner’s-friend experiments are thought experiments that challenge the logical consistency of quantum theory and highlight the quantum measurement problem. These experiments extend the quantum superposition principle to observers and ask what would happen, if such an observer in superposition - called Wigner’s friend – is measured by a so-called superobserver –Wigner. The friend and Wigner would disagree on how to describe the friend’s measurement based on standard quantum theory, which in certain circumstances can be turned into an actual contradiction. This, however, involves many subtleties and issues involving modelling the friend’s mental states and cognition, as well as the communication between her and Wigner. In this project we want to address these issues and investigate the subtleties. On the one hand, we will model the communication between Wigner and his friend such that they can exchange classical messages. On the other hand, we will consider the operations on the friend’s mental state and investigate how they can influence her cognitive functions. By combining these two approaches we will gain insight into whether and to what extent Wigner’s-friend experiments put limits on the compatibility between the superposition of the friend’s mental states and her free will or modes of consciousness.



Back to List of Awardees  
Please enter your e-mail address:

Note: Joining the FQXi mailing list does not give you a login account or constitute membership in the organization.