Higher Spins and Stringy AdS5xS5

Abstract

In this lecture I review recent work on higher spin holography. After a notational flash on the AdS/CFT correspondence, I will discuss HS symmetry enhancement and derive the spectrum of perturbative type IIB superstring excitations on AdS5 in this limit. I will then successfully compare it with the free N=4 SYM spectrum obtained by means of Polya theory. Decomposing the spectrum in HS multiplets, I will eventually sketch how ``La Grande Bouffe'' can be formulated a` la Stueckelberg.Comment: 40 pages, Latex, uses youngtab.sty. Lecture delivered at the RTN Workshop "The quantum structure of spacetime and the geometric nature of fundamental interactions", EXT Workshop "Fundamental Interactions and the Structure of Spacetime" in Kolymbari, Crete, 5-10 September 200