Coleman–Mandula theorem

E573373

The Coleman–Mandula theorem is a foundational result in theoretical physics that severely restricts how spacetime and internal symmetries can be combined in a unified quantum field theory, showing that only a direct product of these symmetries is generally allowed.

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Coleman–Mandula theorem canonical 1

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Statements (45)

Predicate Object
instanceOf no-go theorem ⓘ
result in quantum field theory ⓘ
theorem in theoretical physics ⓘ
appliesTo relativistic quantum field theories ⓘ
theories with well-defined S-matrix ⓘ
assumption Poincaré invariance ⓘ
existence of a nontrivial analytic S-matrix ⓘ
finitely many particle types below any given mass ⓘ
mass gap between vacuum and first excited state ⓘ
nontrivial scattering at almost all energies ⓘ
positive energy spectrum bounded below ⓘ
symmetry generators form a Lie algebra of bosonic operators ⓘ
clarifies conditions under which spacetime and internal symmetries can be unified ⓘ
concerns structure of symmetry groups in quantum field theory ⓘ
unification of spacetime and internal symmetries ⓘ
conclusion spacetime symmetries and internal symmetries cannot be nontrivially unified in an interacting quantum field theory with a nontrivial S-matrix ⓘ
doesNotApplyTo conformal field theories without a standard S-matrix ⓘ
theories with graded Lie algebras including fermionic generators ⓘ
theories without a mass gap ⓘ
two-dimensional integrable models with infinitely many conserved charges ⓘ
field particle physics ⓘ
quantum field theory ⓘ
theoretical physics ⓘ
historicalImpact motivated the search for symmetry extensions beyond ordinary Lie algebras ⓘ
implies no nontrivial mixing of spacetime and internal symmetry generators in ordinary Lie algebras under its assumptions ⓘ
importance foundational constraint on model building in high-energy physics ⓘ
inspired Haag–Łopuszański–Sohnius theorem ⓘ
mainStatement under general assumptions the most general symmetry group of the S-matrix is a direct product of the Poincaré group and an internal symmetry group ⓘ
namedAfter Jeffrey Mandula ⓘ
Sidney Coleman ⓘ
publishedIn Physical Review ⓘ
relatedTo Haag–Łopuszański–Sohnius theorem ⓘ
Poincaré group ⓘ
internal symmetry group ⓘ
super-Poincaré algebra ⓘ
supersymmetry ⓘ
result the Lie algebra of symmetries is a direct sum of the Poincaré algebra and an internal symmetry algebra ⓘ
shows any additional bosonic symmetry generators must commute with Poincaré generators up to internal transformations ⓘ
the full symmetry group is a direct product of spacetime and internal symmetry groups under its assumptions ⓘ
status widely accepted ⓘ
typeOfSymmetryRestriction no-go result for nontrivial bosonic unification of spacetime and internal symmetries ⓘ
usedIn analysis of possible extensions of the Standard Model symmetries ⓘ
arguments about limitations of grand unified theories ⓘ
classification of possible symmetry groups of particle physics theories ⓘ
yearProved 1967 ⓘ

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Full triples — surface form annotated when it differs from this entity's canonical label.

Sidney Coleman → notableWork → Coleman–Mandula theorem ⓘ