The GS String Action on AdS_5 x S^5

TL;DR

This paper derives a simplified form of the Type IIB string action on AdS_5 x S^5 by fixing kappa-symmetry in a specific gauge, making the superspace and action more manageable.

Contribution

It introduces a new gauge fixing of kappa-symmetry that simplifies the Type IIB string action on AdS_5 x S^5.

Findings

Explicit simplified string action derived

Superspace structure is significantly simplified

Facilitates further studies of AdS/CFT correspondence

Abstract

We present a simple form of the Type IIB string action on $AdS_5\times S^5$. The result is achieved by fixing $\kappa$-symmetry in the Killing spinor gauge defined by the projector of the Killing spinor of the D3 brane. We show explicitly that in this gauge the superspace is greatly simplified which is the crucial ingredient for the simple string action.