Marginal deformation of N=4 SYM and Penrose limits with continuum spectrum

Details Marginal deformation of N=4 SYM and Penrose limits with continuum spectrum Marginal deformation of N=4 SYM and Penrose limits with continuum spectrum

2005-05-26

arxiv.org/abs/hep-th/0505243v2

JHEP 0508 (2005) 026

Physics

High Energy Physics

High Energy Physics - Theory

26 pages, 2 figures; v2: typos corrected, field theory interpretation extended

Scientific paper

10.1088/1126-6708/2005/08/026

We study the Penrose limit about a null geodesic with 3 equal angular momenta in the recently obtained type IIB solution dual to an exactly marginal $\gamma$-deformation of N=4 SYM. The resulting background has non-trivial NS 3-form flux as well as RR 5- and 3-form fluxes. We quantise the light-cone Green-Schwarz action and show that it exhibits a continuum spectrum. We show that this is related to the dynamics of a charged particle moving in a Landau plane with an extra interaction induced by the deformation. We interpret the results in the dual N=1 SCFT.

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