A modification of the 10d superparticle action inspired by the Gupta-Bleuler quantization scheme method
arXiv:hep-th/9805079 · doi:10.1016/S0370-2693(98)00613-3
Abstract
We reconsider the issue of the existence of a complex structure in the Gupta-Bleuler quantization scheme. We prove an existence theorem for the complex structure associated with the Casalbuoni-Brink-Schwarz superparticle, based on an explicitly constructed Lagrangian that allows a holomorphic-antiholomorphic splitting of the fermionic constraints consistent with the vanishing of all first class constraints on the physical states.
7 pages, LaTeX, to appear in Phys. Lett. B