Title: Exact open tachyon spectrum in AdS/CFT
Speaker: Ryo Suzuki, Oxford
Date: Thursday, June 12, 2014
Place: Seminar Room 313, Simons Center
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Abstract: In order to understand unstable string states in curved spacetime, we consider potentially tachyonic open string states in AdS_5xS^5 which should correspond to a determinant-like operator in N=4 super Yang-Mills by the AdS/CFT correspondence. Its conformal dimension is studied using integrability and perturbative methods in N=4 SYM. By proposing and solving the boundary thermodynamic Bethe ansatz (BTBA) equations, we find an indication that states of N=4 SYM turn into tachyonic at finite coupling where the total energy of the corresponding string becomes zero.