Reflection algebra, Yangian symmetry and bound-states in AdS/CFT

摘要

We present the `Heisenberg picture' of the reflection algebra by explicitlyconstructing the boundary Yangian symmetry of an AdS/CFT superstring which endson a boundary with non-trivial degrees of freedom and which preserves the fullbulk Lie symmetry algebra. We also consider the spectrum of bulk and boundarystates and some automorphisms of the underlying algebras.