Some Remarks About Berkovits' Superstring Field Theory

TL;DR

This paper discusses solutions in Berkovits' superstring field theory, showing that fluctuations around these solutions follow the same equations of motion and form of the action as the original theory.

Contribution

It provides insights into the behavior of fluctuations in Berkovits' superstring field theory, highlighting the invariance of the action's form under such fluctuations.

Findings

Fluctuations obey the same equations of motion as the original field.

The action for fluctuations has the same form as the original action.

Fluctuations are governed by a modified BRST operator.

Abstract

In this short note we would like to discuss general solutions of the Berkovits superstring field theory, in particular the string field action for fluctuation around such a solution. We will find that fluctuations obey the same equation of motion as the original field with the new BRST operator. Then we will argue that the superstring field theory action for fluctuation field has the same form as the original one.