Higher spins in the symmetric orbifold of K3.

The symmetric orbifold of K3 is believed to be the conformal field theory (CFT) dual of string theory on AdS3×S3×K3 at the tensionless point. For the case when the K3 is described by the orbifold T4/Z², we identify a subsector of the symmetric orbifold theory that is dual to a higher spin theory on AdS3. We analyze how the Bogomol'nyi-Prasad-Sommerfield (BPS) spectrum of string theory can be described from the higher spin perspective and determine which single-particle BPS states are accounted for by the perturbative higher spin theory. [ABSTRACT FROM AUTHOR]