Work

Stability of axion-saxion wormholes

Year: 2024

Type: article

Abstract: A bstract We reconsider the perturbative stability of Euclidean axion wormholes. The quadratic action that governs linear perturbations is derived directly in Euclidean gravity. We demonstrate explicitly that a stability analysis in which one treats the axion as a normal two-form gauge field is equivalent to one performed in the Hodge-dual formulation, where one considers the axion as a scalar with a wrong-sign kinetic term. Both analyses indicate that axion wormholes are perturbatively stable, even in the presence of a massless dilaton, or saxion, field that couples to the axion.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep11(2024)151

Authors: T. Hertog, S. Maenaut, B. Missoni, R. Tielemans, T. Van Riet

Institution: KU Leuven

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Fonds Wetenschappelijk Onderzoek, KU Leuven, Vlaamse regering

Awards: G4124116643, G4794361735, Quantum Gravity in the Sky, Unlocking the Dark Universe with Gravitational Wave Observations: from Quantum Optics to Quantum Gravity.