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arXiv 0901.0009hep-th
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关于$AdS_{4}\times \mathbb{CP}^{3}$中对偶巨引力子的一个注记

A note on dual giant gravitons in $AdS_{4}\times \mathbb{CP}^{3}$

A. Hamilton, J. Murugan, A. Prinsloo, M. Strydom

摘要:

本文研究了在$AdS_{4}\times \mathbb{CP}^{3}$上的IIA型弦论中,包裹在$S^{2}\subset AdS_{4}$上的对偶巨引力子-- D2-膜的一些性质。特别是,我们确认,频谱的小波动的巨人是真实的和独立的引力子的大小。我们还扩展了以前开发的技术附加开弦的巨人这个D2膜巨人和专注于两个特定的限制所产生的字符串西格玛模型:在pp-波的限制,我们将字符串和计算谱的玻色子激发,而在半经典的限制,我们读出了快速字符串Polyakov行动和评论的比较,Landau-Lifshitz行动的双开自旋链。

英文摘要:

We study some of the properties of dual giant gravitons - D2-branes wrapped on an $S^{2}\subset AdS_{4}$ - in type IIA string theory on $AdS_{4}\times \mathbb{CP}^{3}$. 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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