2002/03/31 by Mohsen Alishahiha, M. M. Sheikh-Jabbari, Mohammad M. Sheikh-Jabbari · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #hep-th
paper · pdf · doi:10.1016/s0370-2693(02)01771-9
published as Phys.Lett.B535:328-336,2002 · Latex file, no figures, 13 pages; v2: Eqs.(23) and (24) corrected, a reference added; v3: references added; v4, The final version to appear in PLB
arxiv created 2002/04/16 · openalex publication_date 2002/05/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Using the supergravity solution of N1 D3-branes probing AN2-1 singularities we study the pp-wave limit of AdS5× S5/ZN2. We show that there are two different pp-wave limits. One is the orbifold of the pp-wave limit of AdS5× S5. In this case there is no symmetry enhancement. The other case is the same as the pp-wave limit of AdS5× S5 and therefore we again see the maximal supersymmetry. We will also identify operators in the four dimensional \cal N=2 SU(N1)N2 gauge theory which correspond to stringy excitations in the orbifolded pp-wave geometry. The existence of the maximal pp-wave geometry indicates that there is a subsector of the corresponding \cal N=2 gauge theories which has enhanced \cal N=4 supersymmetry. We also study the pp-wave limits of AdS7,4× S4,7/ZN.