TL;DR
This paper explores the relationship between kappa-symmetry, gauge fixing, and BPS conditions in superstring theory, revealing connections to D-branes, supercharges, and RR charges in supergravity.
Contribution
It establishes a link between kappa-invariance and Bogomol'ny-type conditions, providing insights into covariant quantization and D-brane charge relations.
Findings
Kappa-invariance relates to BPS saturation conditions.
Gauge fixing connects GS and NSR formalisms.
Discussion of RR charges in supergravity p-brane solutions.
Abstract
The paper analyzes the problem fixing the local fermionic gauge symmetry in the Green-Schwarz superstring theory,related to the covariant quantization of this theory.The gauge-fixing procedure reveals the connection between GS and NSR formalisms, conjectured earlier. The analysis relates the kappa-invariance to the Bogomol'ny-type condition,well-known in connection with D-brane theories. The BPS saturation condition appears to be a target space superpartner of the kappa-invariance condition. Relation to RR charges of p-brane solutions of the ten-dimensional supergravity is discussed.
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