On D-branes in Type 0 String Theory

TL;DR

This paper investigates the properties of D-branes in Type 0 string theory, deriving fermionic spectra and anomalous couplings, and analyzing branes at singularities using boundary state methods.

Contribution

It provides a boundary state framework to derive fermionic spectra and anomalous couplings for D-branes in Type 0 string theory, including at singularities.

Findings

Presence of chiral fermions on intersecting D-branes

Explicit computation of anomalous couplings

Description of branes at $A_n$ singularities and their spectra

Abstract

Using boundary states we derive the presence of (chiral) fermions on the intersection of type 0 D-branes. The corresponding anomalous couplings on the branes are then computed. Furthermore, we discuss systems of branes sitting at $A_n$ singularities. In particular, the massless spectrum on the branes is derived, and a boundary state description is given.