On Seven-Brane and Instanton Solutions of Type IIB

TL;DR

This paper explores the spectrum of seven-brane and instanton solutions in Type IIB string theory, revealing new families of supersymmetric branes with kink-like behaviors and generalizations of D-instantons.

Contribution

It introduces a unified family of supersymmetric seven-branes, constructs new magnetically and electrically charged solutions, and generalizes the D-instanton within Type IIB theory.

Findings

Seven-branes form a one-parametric family of supersymmetric solutions.

New magnetically and electrically charged seven-branes are constructed.

A solution generalizing the D-instanton is presented.

Abstract

It is shown that magnetic seven-branes previously considered as different objects are members of a one-parametric family of supersymmetric seven branes. We enlarge the class of seven-branes by constructing new magnetically and also electrically charged seven branes. The solutions display a kink-like behavior. We also construct a solution that naturally generalizes the D-instanton.