Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-05-20
Phys.Rev. D66 (2002) 105023
Physics
High Energy Physics
High Energy Physics - Theory
v3 is in RevTeX format, 18 pages. Section 6 includes a more general algebraic structure that results in the vanishing of ALL C
Scientific paper
10.1103/PhysRevD.66.105023
It is shown that all the states in AdS(5) x S(5) supergravity have zero eigenvalue for the all Casimir operators of its symmetry group SU(2,2|4). To compute this universal zero in supergravity we refine the oscillator methods for studying the lowest weight unitary representations of SU(N,M|R,S). We solve the reduction problem when one multiplies an arbitrary number of super doubletons. This enters in the computation of the quadratic Casimir eigenvalues of the lowest weight representations. We apply the results to SU(2,2|4) that classifies the Kaluza-Klein towers of ten dimensional type IIB supergravity compactified on AdS(5) x S(5). We show that the vanishing of the SU(2,2|4) Casimir eigenvalues for all the states is indeed a group theoretical fact in AdS(5) x S(5) supergravity. By the AdS-CFT correspondence, it is also a fact for gauge invariant states of super Yang-Mills theory with four supersymmetries in four dimensions. This non-trivial and mysterious zero is very interesting because it is predicted as a straightforward consequence of the fundamental local Sp(2) symmetry in 2T-physics. Via the 2T-physics explanation of this zero we find a global indication that this special supergravity hides a twelve dimensional structure with (10,2) signature.
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