Gauge-invariant cosmological perturbations
E844091
Gauge-invariant cosmological perturbations is a foundational 1980 paper by James M. Bardeen that formulated a gauge-invariant approach to cosmological perturbation theory, introducing what are now known as the Bardeen potentials.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Gauge-invariant cosmological perturbations canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10147698 — 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: Gauge-invariant cosmological perturbations Context triple: [Bardeen potential, introducedInWork, Gauge-invariant cosmological perturbations]
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A.
Newtonian gravitational cosmology
Newtonian gravitational cosmology is a classical framework that applies Newton’s law of universal gravitation to model the large-scale structure, dynamics, and evolution of the universe before the advent of general relativity.
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B.
FLRW cosmological models
FLRW cosmological models are a family of solutions to Einstein’s field equations that describe a homogeneous and isotropic expanding or contracting universe, forming the standard framework for modern cosmology.
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C.
Principles of Physical Cosmology
Principles of Physical Cosmology is a foundational textbook that systematically develops the theoretical framework and observational basis of modern cosmology, including the Big Bang model, structure formation, and the large-scale properties of the universe.
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D.
Zeldovich approximation in large-scale structure formation
The Zeldovich approximation in large-scale structure formation is a seminal analytical model in cosmology that predicts how small initial density perturbations in the early universe evolve into the cosmic web of sheets, filaments, and clusters of galaxies.
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E.
Bianchi type cosmologies
Bianchi type cosmologies are a class of spatially homogeneous but generally anisotropic cosmological models that classify possible three-dimensional Lie group symmetries of spacetime in general relativity.
- 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: Gauge-invariant cosmological perturbations Target entity description: Gauge-invariant cosmological perturbations is a foundational 1980 paper by James M. Bardeen that formulated a gauge-invariant approach to cosmological perturbation theory, introducing what are now known as the Bardeen potentials.
-
A.
Newtonian gravitational cosmology
Newtonian gravitational cosmology is a classical framework that applies Newton’s law of universal gravitation to model the large-scale structure, dynamics, and evolution of the universe before the advent of general relativity.
-
B.
FLRW cosmological models
FLRW cosmological models are a family of solutions to Einstein’s field equations that describe a homogeneous and isotropic expanding or contracting universe, forming the standard framework for modern cosmology.
-
C.
Principles of Physical Cosmology
Principles of Physical Cosmology is a foundational textbook that systematically develops the theoretical framework and observational basis of modern cosmology, including the Big Bang model, structure formation, and the large-scale properties of the universe.
-
D.
Zeldovich approximation in large-scale structure formation
The Zeldovich approximation in large-scale structure formation is a seminal analytical model in cosmology that predicts how small initial density perturbations in the early universe evolve into the cosmic web of sheets, filaments, and clusters of galaxies.
-
E.
Bianchi type cosmologies
Bianchi type cosmologies are a class of spatially homogeneous but generally anisotropic cosmological models that classify possible three-dimensional Lie group symmetries of spacetime in general relativity.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
cosmology paper
ⓘ
scientific paper ⓘ |
| appliesTo |
Friedmann–Robertson–Walker cosmological models
NERFINISHED
ⓘ
linear cosmological perturbations ⓘ |
| approach | gauge-invariant formalism ⓘ |
| author | James M. Bardeen NERFINISHED ⓘ |
| basedOn | Einstein field equations NERFINISHED ⓘ |
| citedFor |
definition of Bardeen potentials
ⓘ
standard reference for gauge-invariant perturbation variables ⓘ treatment of gauge issues in cosmology ⓘ |
| contribution |
clarified the role of gauge freedom in cosmological perturbations
ⓘ
distinguished physical perturbations from coordinate artifacts in cosmology ⓘ formulated a gauge-invariant approach to cosmological perturbation theory ⓘ introduced gauge-invariant metric potentials now known as Bardeen potentials ⓘ provided a systematic formalism for linear perturbations of Friedmann–Robertson–Walker universes ⓘ |
| decadePublished | 1980s ⓘ |
| field |
cosmology
ⓘ
general relativity ⓘ theoretical physics ⓘ |
| hasNamedConcept | Bardeen potentials NERFINISHED ⓘ |
| impact |
established the standard language for gauge-invariant cosmological perturbations
ⓘ
provided tools used in precision cosmology analyses ⓘ |
| influenced |
gauge-invariant treatments of scalar metric perturbations
ⓘ
inflationary cosmology perturbation analyses ⓘ modern cosmological perturbation theory ⓘ theoretical foundations of cosmic microwave background anisotropy calculations ⓘ |
| introducedConcept |
Bardeen potentials
NERFINISHED
ⓘ
gauge-invariant curvature perturbations ⓘ gauge-invariant density perturbations ⓘ |
| language | English ⓘ |
| relatedTo |
cosmic microwave background anisotropies
ⓘ
inflationary perturbations ⓘ linearized Einstein equations in cosmology ⓘ structure formation in the universe ⓘ |
| status | foundational work in cosmological perturbation theory ⓘ |
| topic |
Bardeen potentials
NERFINISHED
ⓘ
cosmological perturbation theory ⓘ gauge invariance ⓘ metric perturbations ⓘ scalar perturbations ⓘ tensor perturbations ⓘ vector perturbations ⓘ |
| yearPublished | 1980 ⓘ |
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: Gauge-invariant cosmological perturbations Description of subject: Gauge-invariant cosmological perturbations is a foundational 1980 paper by James M. Bardeen that formulated a gauge-invariant approach to cosmological perturbation theory, introducing what are now known as the Bardeen potentials.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.