Stability and fluctuation modes of giant gravitons with NSNS B field

Abstract

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.

16 pages, spectrum of fluctuation modes included, title change

References in corpus (1)

• Vibration modes of giant gravitons in the background of dilatonic D-branes

Cited by in corpus (3)

• Giants On Deformed Backgrounds
• Probe Branes Dynamics: Exact Solutions in General Backgrounds
• Mirage cosmology with an unstable probe D3-brane