Dirac magnetic monopoles

E135690

hypothetical elementary particle magnetic monopole

Dirac magnetic monopoles are hypothetical elementary particles proposed by Paul Dirac that carry isolated magnetic charge, whose existence would explain the quantization of electric charge and profoundly impact fundamental physics.

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All labels observed (3)

Label	Occurrences
Dirac monopole	5
Dirac magnetic monopoles canonical	1
Dirac string construction	1

How this entity was disambiguated

This entity first appeared as the object of triple T1184152 — 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: Dirac magnetic monopoles
Context triple: [Monopole and Exotics Detector at the LHC, searchesFor, Dirac magnetic monopoles]

A. Weyl’s gauge theory
Weyl’s gauge theory is an early 20th-century theoretical framework that introduced the concept of local gauge invariance, laying foundational ideas for modern gauge theories in particle physics.
B. Dyson’s proof of equivalence of Feynman and Schwinger–Tomonaga formulations of QED
Dyson’s proof of equivalence of Feynman and Schwinger–Tomonaga formulations of QED is a landmark theoretical result that rigorously demonstrated the mathematical consistency and mutual compatibility of different approaches to quantum electrodynamics.
C. Dirac spinors
Dirac spinors are four-component mathematical objects in relativistic quantum mechanics that describe spin-½ particles, such as electrons, incorporating both their spin and particle–antiparticle degrees of freedom.
D. Einstein–Maxwell equations
The Einstein–Maxwell equations are the coupled set of field equations in general relativity that describe how spacetime curvature and electromagnetic fields interact and influence each other.
E. 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.
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: Dirac magnetic monopoles
Target entity description: Dirac magnetic monopoles are hypothetical elementary particles proposed by Paul Dirac that carry isolated magnetic charge, whose existence would explain the quantization of electric charge and profoundly impact fundamental physics.

A. Weyl’s gauge theory
Weyl’s gauge theory is an early 20th-century theoretical framework that introduced the concept of local gauge invariance, laying foundational ideas for modern gauge theories in particle physics.
B. Dyson’s proof of equivalence of Feynman and Schwinger–Tomonaga formulations of QED
Dyson’s proof of equivalence of Feynman and Schwinger–Tomonaga formulations of QED is a landmark theoretical result that rigorously demonstrated the mathematical consistency and mutual compatibility of different approaches to quantum electrodynamics.
C. Dirac spinors
Dirac spinors are four-component mathematical objects in relativistic quantum mechanics that describe spin-½ particles, such as electrons, incorporating both their spin and particle–antiparticle degrees of freedom.
D. Einstein–Maxwell equations
The Einstein–Maxwell equations are the coupled set of field equations in general relativity that describe how spacetime curvature and electromagnetic fields interact and influence each other.
E. 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.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	hypothetical elementary particle ⓘ magnetic monopole ⓘ
describedIn	Dirac 1931 paper on quantized singularities in the electromagnetic field ⓘ
explains	quantization of electric charge ⓘ
hasProperty	breaks electric-magnetic duality symmetry if absent ⓘ couples to electromagnetic field via magnetic charge ⓘ isolated magnetic charge ⓘ magnetic charge is not accompanied by opposite pole ⓘ magnetic charge is quantized ⓘ pointlike in the original Dirac formulation ⓘ singular vector potential description ⓘ would be highly ionizing in matter ⓘ would carry very large magnetic charge compared to electric charge ⓘ would interact strongly with magnetic fields ⓘ would profoundly impact fundamental physics if discovered ⓘ
hasQuantizationCondition	eg = nħc/2 ⓘ
implies	electric charge is proportional to inverse of magnetic charge unit ⓘ electric charge is quantized in integer multiples of a fundamental unit ⓘ
influenced	development of topological methods in gauge theories ⓘ study of monopoles in non-Abelian gauge theories ⓘ
introducedIn	1931 ⓘ
motivated	searches for magnetic monopoles in collider experiments ⓘ searches for magnetic monopoles in condensed matter analog systems ⓘ searches for magnetic monopoles in cosmic rays ⓘ
predictedEffect	would catalyze baryon number violating processes in some models ⓘ would lead to quantization of electric charge ⓘ would modify Maxwell equations by adding magnetic charge and current terms ⓘ would produce characteristic ionization tracks in detectors ⓘ
proposedBy	Paul Dirac ⓘ
relatedConcept	Dirac quantization condition ⓘ Dirac string ⓘ electric-magnetic duality ⓘ grand unified theories ⓘ magnetic charge ⓘ topological defects ⓘ ’t Hooft–Polyakov monopole ⓘ linked to: ’t Hooft–Polyakov monopoles
requires	Dirac string construction ⓘ linked to: Dirac magnetic monopoles single-valuedness of charged particle wavefunctions ⓘ
restores	electric-magnetic duality symmetry in Maxwell theory ⓘ
satisfies	Dirac quantization condition ⓘ
searchesConductedBy	collider experiments such as the LHC ⓘ cosmic ray experiments ⓘ underground detectors ⓘ
status	hypothetical ⓘ not experimentally observed ⓘ
theoreticalFramework	gauge theory ⓘ quantum electrodynamics ⓘ quantum mechanics ⓘ

How these facts were elicited