# Brane annihilation in non-supersymmetric strings

## TL;DR

This paper investigates non-perturbative instabilities in non-supersymmetric Anti de-Sitter vacua from flux compactifications, proposing a brane-based description that aligns with supergravity and instanton decay rate estimates.

## Contribution

It provides a novel brane interpretation of flux vacuum instabilities in non-supersymmetric string models, linking near-horizon geometries with decay processes.

## Key findings

- Evidence for brane-generated near-horizon AdS throats.
- Characterization of geometry attractor properties.
- Agreement between supergravity and brane instanton decay rates.

## Abstract

In this paper we study non-perturbative instabilities in Anti de-Sitter vacua arising from flux compactifications of string models with broken supersymmetry. In the semi-classical limit, these processes drive the vacua towards lower fluxes, which translate into higher curvatures and higher string couplings. In order to shed some light on this regime, we provide evidence for a description in terms of branes, which generate near-horizon AdS throats. To this end, we study the attractor properties of the geometries near the throat, and we also characterize their asymptotics away from it. We also describe the instability within a probe-brane picture, finding an agreement between low-energy (super)gravity and brane instanton estimates of the decay rates.