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arXiv 0808.2691hep-thgr-qc
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M2-brane巨环面上的Fuzzy环

Fuzzy Ring from M2-brane Giant Torus

Tatsuma Nishioka, Tadashi Takayanagi

摘要:

我们在AdS_4 × S^7中构造了自旋的对偶M2巨引力子,它们一般变为1/16 BPS态,并证明了它们的世界体积变成了托里。通过取一个轨道折叠,我们得到了AdS_4 × CP^3中自旋介电D2膜的组态,它与ABJM理论中特定的BPS算符对偶。这揭示了一种新的机制,如何给一个角动量的介电D2膜。我们还发现,当它在AdS_4中的角动量变大时,它接近环状物体。我们的结果可能表明在AdS_4背景下存在超对称黑环。我们还将讨论AdS_4 x CP^3中的对偶巨引力子。

英文摘要:

We construct spinning dual M2 giant gravitons in AdS_4 x S^7, which generically become 1/16 BPS states, and show that their world-volumes become torii. By taking an orbifold, we obtain spinning dielectric D2-brane configurations in AdS_4 x CP^3 dual to specific BPS operators in ABJM theory. This reveals a novel mechanism how to give an angular momentum to a dielectric D2-brane. We also find that when its angular momentum in the AdS_4 becomes large, it approaches to a ring-like object. Our result might suggest an existence of supersymmetric black rings in the AdS_4 background. We will also discuss dual giant gravitons in AdS_4 x CP^3.

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