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  1. Pubblicazioni

Exact results for the low energy AdS4 × CP3 string theory

Articolo
Data di Pubblicazione:
2013
Abstract:
We derive the Thermodynamic Bethe Ansatz equations for the relativistic sigma model describing the AdS(4)XCP(3) string II A theory at strong coupling (i.e. in the Alday-Maldacena decoupling limit). The corresponding Y-system involves an infinite number of Y functions and is of a new type, although it shares a peculiar feature with the Y-system for AdS(4)XCP(3). A truncation of the equations at level p and a further generalisation to generic rank N allow us an alternative description of the theory as the N=4, p= \infty representative in an infinite family of models corresponding to the conformal cosets CP(N-1)_p X U(1), perturbed by a relevant composite field \phi(N,p) =\phi_[CP(N-1)_p] X \phi[U(1)] that couples the two independent conformal field theories. The calculation of the ultraviolet central charge confirms the conjecture by Basso and Rej and the conformal dimension of the perturbing operator, at every N and p, is obtained using the Y-system periodicity. The conformal dimension of \phi[CP(N-1)_p] matches that of the field identified by Fendley while discussing integrability issues for the purely bosonic CP(N-1) sigma model.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
Integrable sigma model, Scattering matrix, TBA
Elenco autori:
Alessandro Fabbri;Davide Fioravanti;Simone Piscaglia;Roberto Tateo
Autori di Ateneo:
TATEO Roberto
Link alla scheda completa:
https://iris.unito.it/handle/2318/142685
Link al Full Text:
https://iris.unito.it/retrieve/handle/2318/142685/175741/CP3.pdf
Pubblicato in:
JOURNAL OF HIGH ENERGY PHYSICS
Journal
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URL

http://xxx.lanl.gov/pdf/1308.1861
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