D-branes on Asymmetric Orbifolds

TL;DR

This paper constructs and analyzes D-brane states on a specific asymmetric orbifold of type IIA string theory, revealing explicit boundary states and their properties, and confirming the spectrum's consistency with known models.

Contribution

It introduces explicit boundary states for D-branes on an asymmetric orbifold, including their dependence on twist fields, advancing understanding of D-branes in such backgrounds.

Findings

Boundary states explicitly constructed with twist field dependence

D-brane spectrum matches type IIA on a four-torus

Consistency with the model's equivalence to type IIA on a four-torus

Abstract

We construct D-brane states on an asymmetric orbifold of type IIA on a four-torus, which is modded out by T-duality. We find explicit boundary states charged under the twisted sector gauge fields. Unlike other cases, the boundary states involve an explicit dependence on the twist fields. The D-brane spectrum is consistent with the model being equivalent to type IIA on a four-torus.