We present a method of removing all infinite sums from the various forms of the mirror TBA equations and the energy formula of the AdS/CFT spectral problem. This new formulation of the TBA system is quasi-local because Y-functions that are connected by the TBA equations are at most next to nearest neighbors with respect to the Y-system diagram of AdS/CFT. The quasi-local version of the mirror TBA is also useful as starting point for the hybrid-NLIE formulation of the spectral problem.
- AdS-CFT correspondence
- Field theories in lower dimensions
- Sigma models
ASJC Scopus subject areas
- Nuclear and High Energy Physics