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Three-point function of semiclassical states at weak coupling

Kostov, Ivan

Journal of physics. A, Mathematical and theoretical, 2012-12, Vol.45 (49), p.494018-27 [Periódico revisado por pares]

IOP Publishing

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  • Título:
    Three-point function of semiclassical states at weak coupling
  • Autor: Kostov, Ivan
  • Assuntos: Bethe states ; correlation functions ; Derivation ; Exact solutions ; integrability in gauge and string theories ; Izergin determinant ; Joining ; Mathematical analysis ; Mathematical models ; Operators ; Representations ; Scalars ; Slavnov inner product ; Strings ; Sutherland limit ; XXX spin chain
  • É parte de: Journal of physics. A, Mathematical and theoretical, 2012-12, Vol.45 (49), p.494018-27
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: We give the derivation of the previously announced analytic expression for the correlation function of three heavy non-BPS operators in super-Yang-Mills theory at weak coupling. The three operators belong to three different su(2) sectors and are dual to three classical strings moving on the sphere. Our computation is based on the reformulation of the problem in terms of the Bethe ansatz for periodic XXX spin-1/2 chains. In these terms, the three operators are described by long-wavelength excitations over the ferromagnetic vacuum, for which the number of the overturned spins is a finite fraction of the length of the chain, and the classical limit is known as the Sutherland limit. Technically, our main result is a factorized operator expression for the scalar product of two Bethe states. The derivation is based on a fermionic representation of Slavnov's determinant formula, and a subsequent bosonization. This article is part of 'Lattice models and integrability', a special issue of Journal of Physics A: Mathematical and Theoretical in honour of F Y Wu's 80th birthday.
  • Editor: IOP Publishing
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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