Introduction to D-branes

TL;DR

This paper provides an introductory overview of D-branes in string theory, explaining their definition, role in non-perturbative dynamics, and various applications within the field.

Contribution

It offers a foundational introduction to D-branes, detailing their boundary conditions, dynamics, and significance in string theory, aimed at newcomers to the subject.

Findings

D-branes are boundary conditions for open strings.

They are crucial for understanding non-perturbative effects.

D-branes have diverse applications in string theory.

Abstract

D-branes are string theory solitons defined by boundary conditions on open strings that end on them. They play an important role in the non-perturbative dynamics of string theory and have found a wide range of applications. These lectures give a basic introduction to D-branes and their dynamics.