Stability and fluctuation modes of giant gravitons with NSNS B field
نویسنده
چکیده
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 ≤ p ≤ 5. We use the quadratic approximation to the brane action to find the equations of motion. The vibration modes for ρ , φ and r are coupled, while those of xk’s(k = 1, ..., p − 2) are decoupled. For p = 5, they are stable independent of the size of the brane. For p 6= 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. Electronic address: [email protected] 1
منابع مشابه
Stability of giant gravitons with NSNS B field
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 ≤ p ≤ 5. We use the quadratic approximation to the brane action to find the equations of motion. The vibration modes for ρ , φ and r are coupled, while those of xk’...
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