Gauge fields as composite boundary excitations

Details Gauge fields as composite boundary excitations Gauge fields as composite boundary excitations

1998-02-18

arxiv.org/abs/hep-th/9802126v2

Phys.Lett. B433 (1998) 19-28

Physics

High Energy Physics

High Energy Physics - Theory

Latex 2 figures in one eps file

Scientific paper

10.1016/S0370-2693(98)00664-9

We investigate representations of the conformal group that describe "massless" particles in the interior and at the boundary of anti-de Sitter space. It turns out that massless gauge excitations in anti-de Sitter are gauge "current" operators at the boundary. Conversely, massless excitations at the boundary are topological singletons in the interior. These representations lie at the threshold of two "unitary bounds" that apply to any conformally invariant field theory. Gravity and Yang-Mills gauge symmetry in anti-De Sitter is translated to global translational symmetry and continuous $R$-symmetry of the boundary superconformal field theory.

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