Democratic Superstring Field Theory and its Gauge Fixing

TL;DR

This paper introduces the democratic superstring field theory, the only fully RNS string field theory, and explores its gauge fixing, showing how it can be reduced to other known theories and extended to include the Ramond sector.

Contribution

It presents the democratic superstring field theory, detailing its properties, gauge fixing procedures, and connections to other string field theories, including new consistent formulations.

Findings

Democratic superstring field theory is fully RNS and lives in the large Hilbert space.

Partial gauge fixing reduces it to modified and non-polynomial theories.

A new consistent string field theory at picture number -1 is derived.

Abstract

This work is my contribution to the proceedings of the conference "SFT2010 - the third international conference on string field theory and related topics" and it reflects my talk there, which described the democratic string field theory and its gauge fixing. The democratic string field theory is the only fully RNS string field theory to date. It lives in the large Hilbert space and includes all picture numbers. Picture changing amounts in this formalism to a gauge transformation. We describe the theory and its properties and show that when partially gauge fixed it can be reduced to the modified theory and to the non-polynomial theory. In the latter case we can even include the Ramond sector in the picture-fixed action. We also show that another partial gauge-fixing leads to a new consistent string field theory at picture number -1.