Gaugeinvariant and gaugefixed Dbrane actions
Abstract
The first part of this paper presents actions for Dirichlet pbranes embedded in a flat tendimensional spacetime. The fields of the (p + 1) dimensional worldvolume theories are the I OD spacetime coordinates X, a pair of MajoranaWeyl spinors θ_{1} and 02, and a U(1) gauge field A_{μ}. The N = 2A or 2B superPoincaré group in ten dimensions is realized as a global symmetry. In addition the theories have local symmetries consisting of general coordinate invariance of the worldvolume, a local fermionic symmetry (called "kappa"), and U(1) gauge invariance. A detailed proof of the kappa symmetry is given that applies to all cases (p = 0, 1, . . . , 9). The second part of the paper presents gaugefixed versions of these theories. The fields of the IOD ( p = 9) gaugefixed theory are a single MajoranaWeyl spinor A and the U(1) gauge field A_{μ}. This theory, whose action turns out to be surprisingly simple, is a supersymmetric extension of 10D BornInfeld theory. It has two global supersymmetries: one represents an unbroken symmetry, and the second corresponds to a broken symmetry for which A is the Goldstone fermion. The gaugefixed supersymmetric Dbrane theories with p > 9 can be obtained from the 10D one by dimensional reduction.
 Publication:

Nuclear Physics B
 Pub Date:
 February 1997
 DOI:
 10.1016/S05503213(97)001806
 arXiv:
 arXiv:hepth/9612080
 Bibcode:
 1997NuPhB.495...99A
 Keywords:

 High Energy Physics  Theory
 EPrint:
 33 pages, latex, no figures