String Theory on AdS Orbifolds

Details String Theory on AdS Orbifolds String Theory on AdS Orbifolds

2001-06-19

arxiv.org/abs/hep-th/0106171v2

JHEP 0204:029,2002

Physics

High Energy Physics

High Energy Physics - Theory

37 pages, 3 eps figures. v2: Substantial revision to section 7, on spacetime CFT interpretation

Scientific paper

10.1088/1126-6708/2002/04/029

We consider worldsheet string theory on $Z_N$ orbifolds of $AdS_3$ associated with conical singularities. If the orbifold action includes a similar twist of $S^3$, supersymmetry is preserved, and there is a moduli space of vacua arising from blowup modes of the orbifold singularity. We exhibit the spectrum, including the properties of twisted sectors and states obtained by fractional spectral flow. A subalgebra of the spacetime superconformal symmetry remains intact after the $Z_N$ quotient, and serves as the spacetime symmetry algebra of the orbifold.

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