Abstract:

We present a solution to the well-known problem of the covariant quantization of superstrings by extending Berkovits' approach in a completely covariant way. We construct a nilpotent BRST charge which is based on a Kac-Moody algebra instead of the Virasoro algebra, and a BRST invariant action which contains only free fields. A new definition of physical states is presented based on analyticity in a new parameter which yields the correct massless spectrum of the open and closed string. (hep-th/0112162 by P.A. Grassi, G. Policastro, M. Porrati, and P. van Nieuwenhuizen).

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Contact person: Larry Peterson

E-mail: lawrence_peterson@und.nodak.edu

Phone: (701) 777-4609

Date of most recent update: April 22, 2002

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