All Superparticles are BPS
Abstract
The generic action for an N-extended superparticle in D-dimensional Minkowski spacetime is shown to have "hidden" supersymmetries (related by "dualities" to the manifest supersymmetries) such that the full supersymmetry algebra is BPS-saturated; the exceptions (which include, trivially, the massless case) are those for which the manifest supersymmetry algebra is already BPS-saturated. Moreover, it is shown that any "non-BPS" superparticle action is a gauge-fixed version of the "BPS" superparticle action for which all supersymmetries are manifest. An example is the N=1 massive D=10 superparticle, which actually has N=2 supersymmetry and is equivalent to the action for a D0-brane of IIA superstring theory.
Keywords
Cite
@article{arxiv.1401.5116,
title = {All Superparticles are BPS},
author = {Luca Mezincescu and Alasdair J. Routh and Paul K. Townsend},
journal= {arXiv preprint arXiv:1401.5116},
year = {2015}
}
Comments
13 pages. Minor improvements plus new reference in v2