Thermodynamic Bethe Ansatz for planar AdS/CFT: a proposal

Abstract

Moving from the mirror theory Bethe-Yang equations proposed by Arutyunov and Frolov, we derive the thermodynamic Bethe Ansatz equations which should control the spectrum of the planar ${\text{AdS}}_5/{\text{CFT}}_4$ correspondence. The associated set of universal functional relations (Y-system) satisfied by the exponentials of the TBA pseudoenergies is deduced, confirming the structure inferred by Gromov, Kazakov and Vieira.

Main typos corrected, notations fixed, references added

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