Premium
Static universe model existing due to the matter‐dark energy coupling
Author(s) -
Cabo Bizet Alejndro,
Cabo Montes de Oca Alejandro
Publication year - 2019
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.201913735
Subject(s) - physics , quintessence , scalar field , dark energy , hubble's law , dilaton , scalar field dark matter , planck mass , dark matter , scalar (mathematics) , theoretical physics , quantum electrodynamics , mathematical physics , cosmology , astrophysics , classical mechanics , gravitation , geometry , mathematics
The work investigates a static, isotropic, and almost homogeneous Universe containing a real scalar field modeling the dark energy (DE) (quintessence) interacting with pressureless matter. It is argued that the interaction between matter and the DE is essential for the very existence of the considered solution. Assuming the possibility that DE can be furnished by the Dilaton (a scalar field reflecting the condensation of string states with zero angular momentum), we fix the value of scalar field at the origin to the Planck scale. It became possible to fix the ratio of the amount of DE to matter energy, in the currently estimated value0.7 0.3and also the observed magnitude of the Hubble constant. The mass of the scalar field chosen for fixing the above ratio and Hubble effect strength, results to be of the order of 10 −29 cm −1 , a small value which seems to be compatible with the zero mass of the Dilaton in the lowest approximations.