Which BPS Baryons Minimize Volume?
arXiv:0809.4594 · doi:10.1103/PhysRevD.79.046007
Abstract
A BPS 3-cycle in a Sasaki-Einstein 5-manifold in general does not minimize volume in its homology class, as we illustrate with several examples of non-minimal volume BPS cycles on the 5-manifolds Y(p,q). Instead they minimize the energy of a wrapping D-brane, extremizing a generalized calibration. We present this generalized calibration and demonstrate that it reproduces both the Born-Infeld and the Wess-Zumino parts of the D3-brane energy.
20 pages, 1 figure; citation added, references corrected