Nambu–Jona-Lasinio model
E194943
The Nambu–Jona-Lasinio model is a theoretical framework in quantum field theory that illustrates spontaneous chiral symmetry breaking and mass generation for fermions, analogous to mechanisms in superconductivity.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Nambu–Jona-Lasinio model canonical | 7 |
| extended Nambu–Jona-Lasinio model | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1730118 — 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: Nambu–Jona-Lasinio model Context triple: [Yoichiro Nambu, knownFor, Nambu–Jona-Lasinio model]
-
A.
Schwinger model
The Schwinger model is a two-dimensional quantum electrodynamics theory that serves as a exactly solvable toy model for studying phenomena like confinement, chiral symmetry breaking, and anomalies in quantum field theory.
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B.
Gell-Mann–Okubo mass formula
The Gell-Mann–Okubo mass formula is a relation in particle physics that predicts the mass patterns of hadrons within SU(3) flavor symmetry multiplets, providing quantitative support for the quark model and the Eightfold Way classification.
-
C.
Salam–Weinberg model
The Salam–Weinberg model is the electroweak theory that unifies the electromagnetic and weak nuclear forces within the Standard Model of particle physics.
-
D.
Gell-Mann–Low theorem
The Gell-Mann–Low theorem is a fundamental result in quantum field theory that rigorously connects interacting quantum fields to free fields via the adiabatic switching-on of interactions, underpinning the use of perturbation theory and the Dyson series.
-
E.
Tomonaga–Schwinger equation
The Tomonaga–Schwinger equation is a relativistic generalization of the Schrödinger equation that formulates quantum field evolution on arbitrary spacelike hypersurfaces, forming a key part of covariant quantum field theory.
- 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: Nambu–Jona-Lasinio model Target entity description: The Nambu–Jona-Lasinio model is a theoretical framework in quantum field theory that illustrates spontaneous chiral symmetry breaking and mass generation for fermions, analogous to mechanisms in superconductivity.
-
A.
Schwinger model
The Schwinger model is a two-dimensional quantum electrodynamics theory that serves as a exactly solvable toy model for studying phenomena like confinement, chiral symmetry breaking, and anomalies in quantum field theory.
-
B.
Gell-Mann–Okubo mass formula
The Gell-Mann–Okubo mass formula is a relation in particle physics that predicts the mass patterns of hadrons within SU(3) flavor symmetry multiplets, providing quantitative support for the quark model and the Eightfold Way classification.
-
C.
Salam–Weinberg model
The Salam–Weinberg model is the electroweak theory that unifies the electromagnetic and weak nuclear forces within the Standard Model of particle physics.
-
D.
Gell-Mann–Low theorem
The Gell-Mann–Low theorem is a fundamental result in quantum field theory that rigorously connects interacting quantum fields to free fields via the adiabatic switching-on of interactions, underpinning the use of perturbation theory and the Dyson series.
-
E.
Tomonaga–Schwinger equation
The Tomonaga–Schwinger equation is a relativistic generalization of the Schrödinger equation that formulates quantum field evolution on arbitrary spacelike hypersurfaces, forming a key part of covariant quantum field theory.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
effective field theory
ⓘ
quantum field theory model ⓘ theoretical physics model ⓘ |
| analogousTo | BCS theory of superconductivity ⓘ |
| appliesTo | fermions ⓘ |
| assumes | contact interaction between quarks in QCD applications ⓘ |
| breaksSymmetry | chiral symmetry ⓘ |
| describes |
dynamical mass generation for fermions
ⓘ
spontaneous chiral symmetry breaking ⓘ |
| developedIn | 1961 ⓘ |
| field |
particle physics
ⓘ
quantum field theory ⓘ theoretical physics ⓘ |
| hasSymmetry | chiral symmetry ⓘ |
| hasVariant |
Polyakov–Nambu–Jona-Lasinio model
ⓘ
extended Nambu–Jona-Lasinio model ⓘ
linked to:
Nambu–Jona-Lasinio model
|
| illustrates |
Goldstone theorem
ⓘ
linked to:
Goldstone bosons
|
| inspired |
Higgs mechanism
ⓘ
models of dynamical electroweak symmetry breaking ⓘ |
| is | non-renormalizable in four dimensions ⓘ |
| isUsedAs |
low-energy effective model of QCD
ⓘ
toy model for chiral symmetry breaking ⓘ |
| LagrangianContains |
chirally symmetric interaction
ⓘ
four-fermion contact term ⓘ |
| motivatedBy | BCS theory of superconductivity ⓘ |
| namedAfter |
Giovanni Jona-Lasinio
ⓘ
Yoichiro Nambu ⓘ |
| originalAuthors |
Giovanni Jona-Lasinio
ⓘ
Yoichiro Nambu ⓘ |
| originalPublicationJournal | Physical Review ⓘ |
| originalPublicationTitle |
Dynamical Model of Elementary Particles Based on an Analogy with Superconductivity I
ⓘ
linked to:
Ginzburg–Landau theory of superconductivity
|
| predicts |
dynamical fermion mass
ⓘ
massless Goldstone bosons in the chiral limit ⓘ |
| relatedTo |
chiral quark models
ⓘ
linear sigma model ⓘ sigma model ⓘ |
| requires | ultraviolet cutoff for regularization ⓘ |
| solutionMethod |
Hartree–Fock approximation
ⓘ
mean-field approximation ⓘ |
| usedFor |
modeling meson properties
ⓘ
studying QCD phase diagram ⓘ studying chiral phase transition ⓘ |
| usesConcept |
chiral symmetry
ⓘ
fermion condensate ⓘ four-fermion interaction ⓘ gap equation ⓘ spontaneous symmetry breaking ⓘ |
| validityRegime | low-energy hadronic physics ⓘ |
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: Nambu–Jona-Lasinio model Description of subject: The Nambu–Jona-Lasinio model is a theoretical framework in quantum field theory that illustrates spontaneous chiral symmetry breaking and mass generation for fermions, analogous to mechanisms in superconductivity.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.