A note on dual giant gravitons in AdS4 × Bbb CBbb P3

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Published 30 April 2009 • Published under licence by IOP Publishing Ltd
, , Citation Alex Hamilton et al JHEP04(2009)132 DOI 10.1088/1126-6708/2009/04/132

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1 Cosmology and Gravity Group, Department of Mathematics and Applied Mathematics, University of Cape Town, Private Bag, Rondebosch, 7700, South Africa

2 Department of Physics, University of Cape Town, Private Bag, Rondebosch, 7700, South Africa

Dates

  1. Received 14 January 2009
  2. Accepted 6 April 2009
  3. Published

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1126-6708/2009/04/132

Abstract

We study some of the properties of dual giant gravitons β€” D2-branes wrapped on an S2βŠ‚AdS4 β€” in type IIA string theory on AdS4 × Bbb CBbb P3. In particular we confirm that the spectrum of small fluctuations about the giant is both real and independent of the size of the graviton. We also extend previously developed techniques for attaching open strings to giants to this D2-brane giant and focus on two particular limits of the resulting string sigma model: In the pp-wave limit we quantize the string and compute the spectrum of bosonic excitations while in the semiclassical limit, we read off the fast string Polyakov action and comment on the comparison to the Landau-Lifshitz action for the dual open spin chain.

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10.1088/1126-6708/2009/04/132