Giannakis Ioannis
(Rockefeller University)
Fermionic Deformations, Symmetries and Ramond-Ramond Fields

I will discuss a method of deforming the BRST operator of the superstring. These first order deformations preserve the nilpotency of the BRST charge and correspod to turning on bosonic and fermionic spacetime fields. Also issues of the spacetime susy algebra and picture changing will be addressed.

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