Quantum Anti-de Sitter space and sphere at roots of unity

Details Quantum Anti-de Sitter space and sphere at roots of unity Quantum Anti-de Sitter space and sphere at roots of unity

1999-10-05

arxiv.org/abs/hep-th/9910037v2

Adv.Theor.Math.Phys. 4 (2000) 155-208

Physics

High Energy Physics

High Energy Physics - Theory

45 pages, LaTeX, 2 figures using epsf. Slight change in notation allows to obtain AdS^2, AdS^3 as special cases of the general

Scientific paper

10.1142/S0217979200002041

An algebra of functions on q-deformed Anti-de Sitter space AdS_q^D is defined which is covariant under U_q(so(2,D-1)), for q a root of unity. The star-structure is studied in detail. The scalar fields have an intrinsic high-energy cutoff, and arise most naturally as fields on orbifolds AdS_q^D \times S^D/G if D is odd, and AdS_q^D \times S_{\chi}^{2D-1}/G if D is even. Here G is a finite abelian group, and S_{\chi} is a certain ``chiral sector'' of the classical sphere. Hilbert spaces of square integrable functions are discussed. Analogous results are found for the q-deformed sphere S_q^D.

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