Proca in an expanding universe

• Verfasst von: Fell, Shaun [VerfasserIn]
• Verfasst von: Heisenberg, Lavinia [VerfasserIn]
• Titel: Proca in an expanding universe
• Verf.angabe: Shaun David Brocus Fell and Lavinia Heisenberg
• E-Jahr: 2024
• Jahr: August 2024
• Umfang: 9 S.
• Illustrationen: Illustrationen
• Fussnoten: Zuerst veröffentlicht: 07. Juli 2024 ; Gesehen am 06.12.2024
• Titel Quelle: Enthalten in: Fortschritte der Physik
• Ort Quelle: Berlin : Wiley-VCH, 1953
• Jahr Quelle: 2024
• Band/Heft Quelle: 72(2024), 7/8 vom: Aug., Artikel-ID 2400110, Seite 1-9
• ISSN Quelle: 1521-3978
• DOI: doi:10.1002/prop.202400110
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: dark matter
• Sach-SW: kerr-de sitter
• Sach-SW: numerical relativity
• Sach-SW: proca
• Sach-SW: superradiance
• K10plus-PPN: 1911138413

Abstract

The superradiant growth of massive vector fields in rotating black hole spacetimes has garnered significant attention in recent literature. However, the majority of these studies overlook the influence of a cosmological constant, which likely constitutes the primary energy content of our universe. In this paper, we extend recent research by incorporating a cosmological constant into the Einstein+Proca system and numerically evolving the resulting equations of motion. Utilizing the newly released GRBoondi numerical relativity code, designed specifically for the numerical evolution of (generalized) Proca fields, we discover that parameters causing a growing instability in the Λ=0\Łambda =0\ scenario transition to a decaying state when Λ>0\Łambda >0\. This results in a more intriguing phenomenology. These simulations pave the way for future full Einstein+Proca simulations to explore the secular decay of the resultant cloud from gravitational emission.