Fuzzy Ring from M2-brane Giant Torus

We construct spinning dual M2 giant gravitons in AdS4 × S7, 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 AdS4×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 AdS4 becomes large, it approaches to a ring-like object. Our result might suggest an existence of supersymmetric black rings in the AdS4 background. We will also discuss dual giant gravitons in AdS4 × CP 3. e-mail:[email protected] e-mail:[email protected]