Open strings in type IIB AdS$_3$ flux vacua

TL;DR

This paper explores the impact of open strings on the stability and landscape of non-supersymmetric AdS3 flux vacua in type IIB string theory, revealing new stable solutions and robustness of existing ones.

Contribution

It demonstrates the perturbative stability of certain non-supersymmetric AdS3 flux vacua under open-string moduli fluctuations and uncovers a large class of new stable vacua due to open-string dynamics.

Findings

Perturbative stability of some non-supersymmetric AdS3 vacua is confirmed.

A new class of stable AdS3 flux vacua emerges from open-string moduli dynamics.

Comments on the scale separation issue in these vacua are provided.

Abstract

The role of open strings is investigated in the context of AdS$_{3}$ flux vacua arising from type IIB orientifold reductions. On the one hand, contrary to expectations, the perturbative stability of certain recently found non-supersymmetric AdS$_{3}$ flux vacua is shown to be robust under fluctuations of the open-string moduli. On the other hand, a wealth of new perturbatively stable AdS$_{3}$ flux vacua appears as a consequence of the non-trivial dynamics of open-string moduli. We also comment on the issue of scale separation in these AdS$_{3}$ flux vacua.