Gauging Unbroken Symmetries in F-theory
arXiv:1607.03017 · doi:10.1103/PhysRevD.94.106004
Abstract
F-theory attempts to include all U-dualities manifestly. Unlike its T-dual manifest partner, which is based on string current algebra, F-theory is based on higher dimensional brane current algebra. Like the T-dual manifest theory, which has unbroken symmetry, the F-theory vacuum also enjoys certain symmetries (""). One of its important and exotic properties is that worldvolume indices are also spacetime indices. This makes the global brane current algebra incompatible with symmetry currents. The solution is to introduce worldvolume covariant derivatives, which depend on the coordinates even in a "flat" background. We will also give as an explicit example the 5-brane case.
16 pages