Frauchiger–Renner paradox
E443149
The Frauchiger–Renner paradox is a thought experiment in quantum foundations that extends Wigner’s friend scenario to argue that standard quantum theory cannot consistently describe its own use by multiple observers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Frauchiger–Renner paradox canonical | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
paradox in quantum foundations
ⓘ
quantum thought experiment ⓘ |
| aimsToShow |
single-world interpretations of quantum mechanics are inconsistent under certain assumptions
ⓘ
standard quantum theory cannot consistently describe its own use ⓘ |
| assumes |
agents can use quantum theory to reason about other agents
ⓘ
self-consistency of reasoning among agents ⓘ single-world outcomes ⓘ universal validity of quantum theory ⓘ |
| basedOn | Wigner’s friend thought experiment NERFINISHED ⓘ |
| challenges |
consistency of standard quantum mechanics with single-world assumptions
ⓘ
interpretations that treat quantum theory as universally valid without modification ⓘ |
| conclusion | different agents using quantum theory can arrive at mutually inconsistent statements ⓘ |
| controversial | true ⓘ |
| field |
philosophy of physics
ⓘ
quantum foundations ⓘ quantum mechanics ⓘ |
| hasAuthor |
Daniela Frauchiger
NERFINISHED
ⓘ
Renato Renner NERFINISHED ⓘ |
| hasInterpretations | different resolutions depending on interpretation of quantum mechanics ⓘ |
| involves |
Wigner-type super-observers
ⓘ
entangled quantum systems ⓘ logical contradictions between agents’ predictions ⓘ multiple observers ⓘ nested observers ⓘ quantum measurements ⓘ reasoning about measurement outcomes ⓘ |
| motivates |
analysis of consistency conditions in quantum reasoning
ⓘ
debates about the meaning of quantum states ⓘ revisions of assumptions about observers in quantum theory ⓘ |
| namedAfter |
Daniela Frauchiger
NERFINISHED
ⓘ
Renato Renner NERFINISHED ⓘ |
| publicationYear | 2018 ⓘ |
| publishedIn | Nature Communications NERFINISHED ⓘ |
| relatedTo |
Wigner’s friend paradox
NERFINISHED
ⓘ
logical no-go theorems in quantum foundations ⓘ self-reference in physical theories ⓘ |
| relevantTo |
Bohmian mechanics
NERFINISHED
ⓘ
Copenhagen interpretation ⓘ Many-worlds interpretation of quantum mechanics NERFINISHED ⓘ QBism NERFINISHED ⓘ objective collapse theories ⓘ relational quantum mechanics NERFINISHED ⓘ |
| title | Quantum theory cannot consistently describe the use of itself ⓘ |
| usesConcept |
Born rule
NERFINISHED
ⓘ
entanglement ⓘ measurement problem ⓘ quantum superposition ⓘ unitary evolution ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.