Abstract
We consider the exact -matrix of , which is the building block for describing the scattering of worldsheet excitations of the light-cone gauge-fixed backgrounds and with pure Ramond-Ramond fluxes. We show that is invariant under a “deformed boost” symmetry, for which we write an explicit exact coproduct, i.e. its action on two-particle states. When we include the boost, the symmetries of the -matrix close into a -Poincaré superalgebra. Our findings suggest that the recently discovered boost invariance in may be a common feature of AdS/CFT systems that are treatable with the exact techniques of integrability. With the aim of going towards a universal formulation of the underlying Hopf algebra, we also propose a universal form of the classical -matrix.
- Received 16 December 2017
DOI:https://doi.org/10.1103/PhysRevD.97.066001
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society