What is recorded here?
Frauchiger and Renner proposed a thought experiment in which four agents reason about one another using quantum theory. The authors argue that three stated rules about certainty, consistency and individual outcomes cannot all hold in their protocol. The example has prompted continuing debate about how quantum descriptions apply to observers.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
The claim depends on the defined protocol and reasoning rules; it is not a physical experiment or an unconditional proof that quantum mechanics is inconsistent. Later authors dispute the interpretation of the agents’ inferences, and a 2024 exchange discusses different proposed restrictions. The later publications and their authors are separate contributions.
Read the original work
- Quantum theory cannot consistently describe the use of itself — exact author v2
- Quantum theory cannot consistently describe the use of itself
- How Quantum Mechanics can consistently describe the use of itself
- Quantum mechanical rules for observed observers and the consistency of quantum theory
- Reply to: Quantum mechanical rules for observed observers and the consistency of quantum theory
- Publisher Correction to the 2024 reply
This English explanation is an editorial reading view. It does not replace the complete original work or certify its science.
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People and systems
Daniela Frauchiger; Renato Renner
These are the source-listed authors of this specific paper. Individual effort, author nationality and unresolved cross-record identities are not inferred.
Research locations and affiliations
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Documented countries / regions: Switzerland
ETH Zurich, Switzerland. These locations are paper affiliations, not author nationalities or ownership.
English catalogue narrative
Frauchiger and Renner formulate an incompatibility among three rules for quantum agents
Frauchiger and Renner proposed a thought experiment in which four agents reason about one another using quantum theory. The authors argue that three stated rules about certainty, consistency and individual outcomes cannot all hold in their protocol. The example has prompted continuing debate about how quantum descriptions apply to observers.
Scientific scope
The claim depends on the defined protocol and reasoning rules; it is not a physical experiment or an unconditional proof that quantum mechanics is inconsistent. Later authors dispute the interpretation of the agents’ inferences, and a 2024 exchange discusses different proposed restrictions. The later publications and their authors are separate contributions.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
Daniela Frauchiger; Renato Renner
These are the source-listed authors of this specific paper. Individual effort, author nationality and unresolved cross-record identities are not inferred.
Original sources
- Quantum theory cannot consistently describe the use of itself — exact author v2
- Quantum theory cannot consistently describe the use of itself
- How Quantum Mechanics can consistently describe the use of itself
- Quantum mechanical rules for observed observers and the consistency of quantum theory
- Reply to: Quantum mechanical rules for observed observers and the consistency of quantum theory
- Publisher Correction to the 2024 reply