Stability and fluctuation modes of giant gravitons with NSNS B field

Details Stability and fluctuation modes of giant gravitons with NSNS B field Stability and fluctuation modes of giant gravitons with NSNS B field

2001-09-25

arxiv.org/abs/hep-th/0109192v3

Phys.Lett. B529 (2002) 150-162

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, spectrum of fluctuation modes included, title change

Scientific paper

10.1016/S0370-2693(02)01233-9

We study the stability of the giant gravitons in the string theory background with NSNS B field. We consider the perturbation of giant gravitons formed by a probe D$(8-p)$ brane in the background generated by D$(p-2)$-D$(p)$ branes for $2 \le p \le 5$. We use the quadratic approximation to the brane action to find the equations of motion. For $p=5$, giant graviton configurations are stable independent of the size of the brane. For $p \ne 5$, we calculated the range of the size of the brane where they are stable. We also present the mode frequencies explicitly for some special cases.

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