QBism
E443151
Bayesian interpretation of quantum mechanics
interpretation of quantum mechanics
philosophy of physics position
QBism is an interpretation of quantum mechanics that treats the wavefunction as an expression of an individual agent’s personal probabilities for measurement outcomes rather than an objective physical state.
All labels observed (3)
| Label | Occurrences |
|---|---|
| QBism canonical | 4 |
| Quantum Bayesianism | 2 |
| Quantum Bayesian approach | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4461468 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: QBism Context triple: [Wigner’s friend thought experiment, relatedTo, QBism]
-
A.
Born rule in quantum mechanics
The Born rule in quantum mechanics is the fundamental postulate that connects a system’s wavefunction to experimentally observed probabilities by stating that measurement outcomes occur with probabilities given by the squared magnitude of the wavefunction’s amplitudes.
-
B.
Copenhagen interpretation of quantum mechanics
The Copenhagen interpretation of quantum mechanics is a foundational philosophical framework that emphasizes probabilistic wavefunctions, measurement-induced collapse, and the central role of observation in determining physical reality.
-
C.
Mathematical Foundations of Quantum Mechanics
Mathematical Foundations of Quantum Mechanics is John von Neumann’s landmark 1932 treatise that rigorously formulates quantum theory using functional analysis and operator theory on Hilbert spaces.
-
D.
Truth and Probability
Truth and Probability is a foundational 1926 essay by philosopher F. P. Ramsey that develops a subjective theory of probability and lays groundwork for modern Bayesian decision theory.
-
E.
Logical Foundations of Probability
Logical Foundations of Probability is a seminal philosophical work by Rudolf Carnap that develops a rigorous logical and formal account of probability and inductive reasoning.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: QBism Target entity description: QBism is an interpretation of quantum mechanics that treats the wavefunction as an expression of an individual agent’s personal probabilities for measurement outcomes rather than an objective physical state.
-
A.
Born rule in quantum mechanics
The Born rule in quantum mechanics is the fundamental postulate that connects a system’s wavefunction to experimentally observed probabilities by stating that measurement outcomes occur with probabilities given by the squared magnitude of the wavefunction’s amplitudes.
-
B.
Copenhagen interpretation of quantum mechanics
The Copenhagen interpretation of quantum mechanics is a foundational philosophical framework that emphasizes probabilistic wavefunctions, measurement-induced collapse, and the central role of observation in determining physical reality.
-
C.
Mathematical Foundations of Quantum Mechanics
Mathematical Foundations of Quantum Mechanics is John von Neumann’s landmark 1932 treatise that rigorously formulates quantum theory using functional analysis and operator theory on Hilbert spaces.
-
D.
Truth and Probability
Truth and Probability is a foundational 1926 essay by philosopher F. P. Ramsey that develops a subjective theory of probability and lays groundwork for modern Bayesian decision theory.
-
E.
Logical Foundations of Probability
Logical Foundations of Probability is a seminal philosophical work by Rudolf Carnap that develops a rigorous logical and formal account of probability and inductive reasoning.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Bayesian interpretation of quantum mechanics
ⓘ
interpretation of quantum mechanics ⓘ philosophy of physics position ⓘ |
| abbreviationOf |
Quantum Bayesianism
ⓘ
linked to:
QBism
|
| addresses |
quantum measurement problem
ⓘ
quantum nonlocality ⓘ |
| arguesThat |
quantum probabilities do not require underlying hidden variables
ⓘ
quantum states are not properties of systems ⓘ |
| associatedWith |
Carlton M. Caves
ⓘ
Christopher A. Fuchs ⓘ Rüdiger Schack ⓘ |
| claims |
measurement outcomes are personal experiences of the agent
ⓘ
quantum probabilities are personal degrees of belief ⓘ quantum theory is a user’s manual for agents ⓘ |
| contrastsWith |
Bohmian mechanics
ⓘ
linked to:
pilot-wave theory
Copenhagen interpretation ⓘ many-worlds interpretation ⓘ objective collapse theories ⓘ |
| deniesWavefunctionAs | objective physical state ⓘ |
| developedFrom |
Quantum Bayesian approach
ⓘ
linked to:
QBism
|
| discussedIn |
Foundations of Physics
ⓘ
Reviews of Modern Physics ⓘ |
| emphasizes |
role of the agent in quantum theory
ⓘ
subjective probabilities ⓘ |
| field |
philosophy of science
ⓘ
quantum foundations ⓘ |
| fullName |
Quantum Bayesianism
ⓘ
linked to:
QBism
|
| holdsThat |
different agents may assign different quantum states to the same system
ⓘ
no quantum state is objectively correct ⓘ |
| influencedBy |
Bayesian epistemology
ⓘ
Bruno de Finetti’s personalist probability ⓘ |
| interpretsBornRuleAs | normative rule for updating personal probabilities ⓘ |
| locatesUncertaintyIn | agent’s expectations rather than physical indeterminacy of a wavefunction ⓘ |
| proposes | reconstruction of quantum theory from normative constraints on probabilities ⓘ |
| rejects |
hidden-variable realism
ⓘ
many-worlds ontology ⓘ objective collapse of the wavefunction ⓘ |
| relatedTo | information-theoretic reconstructions of quantum mechanics ⓘ |
| timePeriod |
early 21st century
ⓘ
late 20th century ⓘ |
| treatsMeasurementAs | action taken by an agent on a quantum system ⓘ |
| treatsOutcomeAs | experience registered by the agent ⓘ |
| treatsWavefunctionAs | expression of an agent’s personal probabilities ⓘ |
| uses |
Bayesian probability theory
ⓘ
personalist Bayesianism ⓘ |
| viewsQuantumStateAs | state of belief of an agent ⓘ |
| viewsQuantumTheoryAs | single-user theory ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: QBism Description of subject: QBism is an interpretation of quantum mechanics that treats the wavefunction as an expression of an individual agent’s personal probabilities for measurement outcomes rather than an objective physical state.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.