Guarino Adolfo, Malek Emanuel, Samtleben Henning
Departamento de Física, Universidad de Oviedo, Avda. Federico García Lorca 18, 33007 Oviedo, Spain.
Instituto Universitario de Ciencias y Tecnologías Espaciales de Asturias (ICTEA), Calle de la Independencia 13, 33004 Oviedo, Spain.
Phys Rev Lett. 2021 Feb 12;126(6):061601. doi: 10.1103/PhysRevLett.126.061601.
Stable nonsupersymmetric anti-de Sitter (AdS) vacua of string theory are widely believed not to exist. In this Letter, we analytically compute the full bosonic Kaluza-Klein spectrum around the G_{2}-invariant nonsupersymmetric AdS_{4} solution of massive IIA supergravity and show that it is perturbatively stable. We also provide evidence that six other nonsupersymmetric AdS_{4} solutions of massive IIA supergravity are perturbatively stable. Since previous studies have indicated that these AdS vacua may also be nonperturbatively stable, our findings pose a challenge to the swampland conjecture.
弦理论中稳定的非超对称反德西特（AdS）真空被广泛认为不存在。在本快报中，我们解析计算了围绕大质量IIA型超引力的(G_2)不变非超对称(AdS_4)解的完整玻色子卡鲁扎 - 克莱因能谱，并表明它是微扰稳定的。我们还提供证据表明大质量IIA型超引力的其他六个非超对称(AdS_4)解也是微扰稳定的。由于先前的研究表明这些AdS真空也可能是非微扰稳定的，我们的发现对沼泽地猜想提出了挑战。
