Tensionless supersymmetric M2 branes in AdS(4) x S**7 and Giant Diabolo

JAUME LOPEZ CARBALLO, ADRIAN R. LUGO, JORGE G. RUSSO

JOURNAL OF HIGH ENERGY PHYSICS

SPRINGER

Lugar: Berlin; Año: 2009 vol. 2009 p. 118 - 147

1126-6708

We find various supersymmetric configurations of toroidal M2 brane solutions in AdS4times S7 or, more generally, in AdS4 imes S7/Zk. In this class we identify solutions preserving 1/4 and 1/8 supersymmetries of the background. The supersymmetric M2 branes have angular momenta and winding on S7, and null world-volumes. In certain cases they collapse to string-like configurations. These configurations can be viewed as a higher-dimensional (membrane) analog of BMN states. We compute the energy and angular momenta, showing that all supersymmetric configurations obey the BPS relation E = J/R, J=sum_i=1,4|Ji| with E, J \rightarrow \infty. Finally, we also study another class of supersymmetric M2-branes, including uncompact rotating membranes of diabolo" shape.