Coleman theorem on symmetry breaking in two dimensions

E573375

The Coleman theorem on symmetry breaking in two dimensions is a result in quantum field theory stating that continuous symmetries cannot undergo spontaneous symmetry breaking in two-dimensional spacetime due to large infrared fluctuations.

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Statements (43)

Predicate Object
instanceOf no-go theorem ⓘ
theorem in quantum field theory ⓘ
appliesTo 1+1 dimensional relativistic quantum field theories ⓘ
two-dimensional spacetime ⓘ
assumes existence of a unique translationally invariant vacuum ⓘ
locality ⓘ
positivity of the Hilbert space metric ⓘ
relativistic invariance ⓘ
short-range interactions ⓘ
clarifies conditions under which Goldstone’s theorem fails in two dimensions ⓘ
concerns continuous global symmetries ⓘ
spontaneous symmetry breaking ⓘ
consequence no phase with spontaneously broken continuous symmetry exists in 1+1D relativistic QFT under its assumptions ⓘ
order parameters for continuous symmetries cannot acquire nonzero vacuum expectation values in 1+1D ⓘ
doesNotApplyTo discrete symmetries ⓘ
higher-dimensional spacetimes ⓘ
excludes long-range order associated with continuous symmetries in two-dimensional relativistic QFT ⓘ
field quantum field theory ⓘ
theoretical physics ⓘ
formalism operator formalism of quantum field theory ⓘ
holdsFor continuous internal symmetries ⓘ
global symmetries ⓘ
implies absence of Goldstone bosons for continuous symmetries in two-dimensional relativistic quantum field theories ⓘ
vacuum expectation values of local order parameters for continuous symmetries vanish in two dimensions ⓘ
influenced understanding of phase structure in low-dimensional quantum field theories ⓘ
involves cluster decomposition properties ⓘ
correlation functions of fields ⓘ
infrared behavior of propagators ⓘ
mathematicalContext relativistic quantum fields on two-dimensional Minkowski space ⓘ
namedAfter Sidney Coleman ⓘ
originalAuthor Sidney Coleman ⓘ
publishedIn Communications in Mathematical Physics ⓘ
reason large infrared fluctuations of massless modes in two dimensions ⓘ
relatedTo Goldstone theorem ⓘ
linked to: Goldstone bosons

Mermin–Wagner theorem ⓘ
infrared divergences ⓘ
massless scalar fields in two dimensions ⓘ
statesThat continuous symmetries cannot undergo spontaneous symmetry breaking in two-dimensional spacetime ⓘ
typeOf infrared no-go result ⓘ
usedIn analysis of two-dimensional sigma models ⓘ
constraining model building in 1+1 dimensional QFT ⓘ
study of two-dimensional scalar field theories ⓘ
yearProposed 1973 ⓘ

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Referenced by (3)

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

Sidney Coleman → notableIdea → Coleman theorem on symmetry breaking in two dimensions ⓘ
Landau–Peierls instability → relatedTo → Mermin–Wagner theorem ⓘ
linked to: Coleman theorem on symmetry breaking in two dimensions
Bogoliubov inequality → relatedTo → Mermin–Wagner theorem ⓘ
linked to: Coleman theorem on symmetry breaking in two dimensions