6533b829fe1ef96bd128ae17

RESEARCH PRODUCT

On AdS7 stability

G. Bruno De LucaGabriele Lo MonacoAlessandra GnecchiFabio ApruzziAlessandro Tomasiello

subject

High Energy Physics - TheoryNuclear and High Energy PhysicsSettore FIS/02 - Fisica Teorica Modelli E Metodi Matematicistability: nonperturbativeComputationSuperstring VacuaType (model theory)AdS-CFT Correspondence01 natural sciencesInstabilityStability (probability)orientifoldmembrane modelTheoretical physicsHigh Energy Physics::Theory0103 physical sciencesexcited stateanti-de Sitterlcsh:Nuclear and particle physics. Atomic energy. Radioactivity010306 general physicsPhysicsSupersymmetry BreakingpolarizationConjecture010308 nuclear & particles physics[PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]hep-thbubbleSpectrum (functional analysis)Gauged supergravityHigh Energy Physics::PhenomenologyFIS/02 - FISICA TEORICA MODELLI E METODI MATEMATICIBPSlcsh:QC770-798supergravityBranesupersymmetryAdS-CFT Correspondence Superstring Vacua Supersymmetry BreakingParticle Physics - Theory

description

AdS$_7$ supersymmetric solutions in type IIA have been classified, and they are infinitely many. Moreover, every such solution has a non-supersymmetric sister. In this paper, we study the perturbative and non-perturbative stability of these non-supersymmetric solutions, focusing on cases without orientifolds. Perturbatively, we first look at the KK spectrum of spin-2 excitations. This does not exhibit instabilities, but it does show that there is no separation of scales for either the BPS and the non-BPS case, thus proving for supersymmetric AdS$_7$ a well-known recent conjecture. We then use 7d gauged supergravity and a brane polarization computation to access part of the spectrum of KK scalars. The result signals an instability for all non-supersymmetric solutions except those that have a single D8 on each side. We finally look at non-perturbative instabilities, and find that NS5 bubbles make these remaining solutions decay.

yearjournalcountryeditionlanguage
2019-12-31Journal of High Energy Physics
10.1007/jhep07(2020)033http://link.springer.com/article/10.1007/JHEP07(2020)033