Zobrazeno 1 - 10
of 1 245
pro vyhledávání: '"Large extra dimensions"'
Autor:
Rahim Leung, K. S. Stelle
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-31 (2024)
Abstract Deriving an effective massless field theory for fluctuations about a braneworld spacetime requires analysis of the transverse-space-wavefunction’s second-order differential equation. There can be two strikingly different types of effective
Externí odkaz:
https://doaj.org/article/50d1930fb3794b72b9b6cd38e236d9dc
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 7, Pp 1-18 (2024)
Abstract In this work, we study the gravitational quasinormal modes of the thick brane in Rastall gravity. Using the asymptotic iteration and direct integration methods, we solve the quasinormal frequencies of the Rastall thick brane. We also obtaine
Externí odkaz:
https://doaj.org/article/c03dd580e0bb40368eb5ab858fd165b7
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-34 (2024)
Abstract In this paper, we consider a coupling mechanism between the kinetic term and the gravity, in which a coupling function F (R) is introduced into the kinetic term of the five-dimensional scalar field. Based on this scenario, we investigate the
Externí odkaz:
https://doaj.org/article/bbed5f624ca34624b9ec7169fe972892
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-34 (2024)
Abstract The species scale provides a lower bound on the shortest possible length that can be probed in gravitational effective theories. It may be defined by the size of the minimal black hole in the theory and, as such, it has recently been given a
Externí odkaz:
https://doaj.org/article/aed46f8b755b4181855e6eb62370de8f
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-19 (2024)
Abstract It was recently proposed that five-dimensional inflation can relate the causal size of the observable universe to the present weakness of gravitational interactions by blowing up an extra compact dimension from the microscopic fundamental le
Externí odkaz:
https://doaj.org/article/10519f245b4849bc84eec18d62005ab2
Autor:
Bruno J. Barros, Jose Beltrán Jiménez
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-25 (2024)
Abstract We explore the construction of four-dimensional thick branes supported by massless 3-forms in a five-dimensional bulk space. The required residual Poincaré symmetry on the brane is realised as a combination of the bulk symmetries and the in
Externí odkaz:
https://doaj.org/article/f83fa8bdc47b41df893594abe47079f6
Autor:
Jun-Jie Wan, Yu-Xiao Liu
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-27 (2023)
Abstract In this paper we investigate the localization of spinor fields in braneworld models by reducing a Dirac spinor in 2n + 2-dimensional spacetime to spinors in 2n dimensions. The high-dimensional Dirac can be reduced to low-dimensional spinors
Externí odkaz:
https://doaj.org/article/bb4efcc0b31c4eb4a09f132b47520178
Autor:
Hyewon Han, Bogeun Gwak
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-18 (2023)
Abstract We investigated the impact of metric fluctuations on the higher-dimensional black hole geometry. We generalized the four-dimensional model to higher dimensions to treat quantum vacuum fluctuations by the classical approach. A fluctuating bla
Externí odkaz:
https://doaj.org/article/da8aa9b661464e3e918908d40134cac7
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-18 (2023)
Abstract Motivated by principles from the Swampland program, which characterize requirements for a consistent UV completion of quantum gravity, combined with observational data, we are led to a unique corner of the quantum gravity landscape. In parti
Externí odkaz:
https://doaj.org/article/0a6982b773b54f8fb6f1223b2e11d2e6
Autor:
Ida M. Rasulian
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 11, Pp 1-17 (2022)
Abstract We propose an effective model for an exponentially expanding universe in the brane-world scenario. The setup consists of a 5D black hole and a brane close to the black hole horizon. In case the brane acquires a specific configuration, which
Externí odkaz:
https://doaj.org/article/0d21d290eef141bfb74f445c06132cb5