Ginzburg–Landau theory of superconductivity
E10997
The Ginzburg–Landau theory of superconductivity is a phenomenological framework that describes superconductors using a complex order parameter and macroscopic equations to capture phase transitions, coherence length, and magnetic behavior.
All labels observed (9)
How this entity was disambiguated
This entity first appeared as the object of triple T100413 — 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: Ginzburg–Landau theory of superconductivity Context triple: [BCS theory of superconductivity, relatedTo, Ginzburg–Landau theory of superconductivity]
-
A.
BCS theory of superconductivity
The BCS theory of superconductivity is a fundamental microscopic theory that explains superconductivity through the formation of Cooper pairs of electrons and their collective quantum behavior in a solid.
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B.
Meissner effect
The Meissner effect is the phenomenon in which a superconductor expels magnetic fields from its interior when cooled below its critical temperature, leading to perfect diamagnetism.
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C.
London equations
The London equations are fundamental relations in superconductivity that describe how magnetic fields behave inside superconductors, capturing key features like the Meissner effect and zero electrical resistance.
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D.
Eliashberg theory
Eliashberg theory is an extension of BCS superconductivity that incorporates strong-coupling and frequency-dependent effects to more accurately describe real superconducting materials.
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E.
Cooper pair
A Cooper pair is a bound state of two electrons (or other fermions) that move together in a correlated way, enabling superconductivity by forming a collective quantum state with zero electrical resistance.
- 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: Ginzburg–Landau theory of superconductivity Target entity description: The Ginzburg–Landau theory of superconductivity is a phenomenological framework that describes superconductors using a complex order parameter and macroscopic equations to capture phase transitions, coherence length, and magnetic behavior.
-
A.
BCS theory of superconductivity
The BCS theory of superconductivity is a fundamental microscopic theory that explains superconductivity through the formation of Cooper pairs of electrons and their collective quantum behavior in a solid.
-
B.
Meissner effect
The Meissner effect is the phenomenon in which a superconductor expels magnetic fields from its interior when cooled below its critical temperature, leading to perfect diamagnetism.
-
C.
London equations
The London equations are fundamental relations in superconductivity that describe how magnetic fields behave inside superconductors, capturing key features like the Meissner effect and zero electrical resistance.
-
D.
Eliashberg theory
Eliashberg theory is an extension of BCS superconductivity that incorporates strong-coupling and frequency-dependent effects to more accurately describe real superconducting materials.
-
E.
Cooper pair
A Cooper pair is a bound state of two electrons (or other fermions) that move together in a correlated way, enabling superconductivity by forming a collective quantum state with zero electrical resistance.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
field theory
ⓘ
phenomenological theory ⓘ theory of superconductivity ⓘ |
| appliesTo |
type-I superconductors
ⓘ
type-II superconductors ⓘ |
| approximates | BCS theory near critical temperature ⓘ |
| assumes | continuous phase transition ⓘ |
| basedOn | Landau theory of second-order phase transitions ⓘ |
| category | Superconductivity ⓘ |
| characterizes |
order parameter amplitude
ⓘ
order parameter phase ⓘ |
| couplesTo | electromagnetic vector potential ⓘ |
| defines |
Ginzburg–Landau theory of superconductivity
self-linksurface differs
ⓘ
surface form:
Ginzburg–Landau parameter kappa
|
| describes |
coherence length in superconductors
ⓘ
macroscopic properties of superconductors ⓘ magnetic behavior of superconductors ⓘ penetration depth in superconductors ⓘ superconducting phase transition ⓘ |
| explains |
Meissner effect
ⓘ
critical magnetic fields of superconductors ⓘ |
| field |
condensed matter physics
ⓘ
theoretical physics ⓘ |
| formulatedBy |
Lev Landau
ⓘ
Vitaly Ginzburg ⓘ |
| frameworkFor | macroscopic quantum phenomena in superconductors ⓘ |
| generalizedTo |
anisotropic superconductors
ⓘ
multicomponent superconductors ⓘ unconventional superconductors ⓘ |
| influenced | development of modern condensed matter field theories ⓘ |
| inspiredBy |
Landau theory of second-order phase transitions
ⓘ
surface form:
Landau mean-field theory
|
| introduced | 1950 ⓘ |
| introduces |
Ginzburg–Landau theory of superconductivity
self-linksurface differs
ⓘ
surface form:
Ginzburg–Landau parameter
|
| leadsTo |
Ginzburg–Landau theory of superconductivity
self-linksurface differs
ⓘ
surface form:
Ginzburg–Landau equations
|
| namedAfter |
Lev Landau
ⓘ
Vitaly Ginzburg ⓘ |
| predicts |
Abrikosov vortices
ⓘ
surface form:
Abrikosov vortex lattice
existence of vortices in type-II superconductors ⓘ |
| relates | coherence length to penetration depth ⓘ |
| usedIn |
description of Josephson effect
ⓘ
description of flux quantization ⓘ modeling of superconducting devices ⓘ theory of superconducting vortices ⓘ |
| uses |
complex order parameter
ⓘ
free energy functional ⓘ macroscopic wave function ⓘ order parameter symmetry ⓘ |
| validNear | critical temperature ⓘ |
How these facts were elicited
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Instruction
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Input
Subject: Ginzburg–Landau theory of superconductivity Description of subject: The Ginzburg–Landau theory of superconductivity is a phenomenological framework that describes superconductors using a complex order parameter and macroscopic equations to capture phase transitions, coherence length, and magnetic behavior.
Referenced by (17)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ginzburg–Landau theory
this entity surface form:
Ginzburg–Landau theory
Ginzburg–Landau theory of superconductivity
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introduces
→
Ginzburg–Landau theory of superconductivity
self-linksurface differs
ⓘ
this entity surface form:
Ginzburg–Landau parameter
Ginzburg–Landau theory of superconductivity
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defines
→
Ginzburg–Landau theory of superconductivity
self-linksurface differs
ⓘ
this entity surface form:
Ginzburg–Landau parameter kappa
Ginzburg–Landau theory of superconductivity
→
leadsTo
→
Ginzburg–Landau theory of superconductivity
self-linksurface differs
ⓘ
this entity surface form:
Ginzburg–Landau equations
Bardeen–Stephen model of flux flow in superconductors
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basedOn
→
Ginzburg–Landau theory of superconductivity
ⓘ
this entity surface form:
time-dependent Ginzburg–Landau theory (phenomenologically)
this entity surface form:
Ginzburg–Landau parameter
this entity surface form:
Ginzburg–Landau theory
this entity surface form:
Ginzburg–Landau theory
this entity surface form:
Ginzburg–Landau equations
this entity surface form:
Ginzburg criterion in phase transitions
Landau theory of second-order phase transitions
→
generalizedTo
→
Ginzburg–Landau theory of superconductivity
ⓘ
this entity surface form:
Landau–Ginzburg theory
this entity surface form:
Ginzburg–Landau theory
this entity surface form:
Dynamical Model of Elementary Particles Based on an Analogy with Superconductivity I