2017/08/08 by Yu Li · 2 citations
Physics and Astronomy · #Astrophysics #Attractor #Black Holes and Theoretical Physics #Classical mechanics #Cosmology #Cosmology and Gravitation Theories #Dark energy #Exponential function #Field (mathematics) #Galaxies: Formation, Evolution, Phenomena #Mathematical analysis #Metric expansion of space #Physics #Quintessence #Scalar (mathematics) #Scalar field #Scalar potential #Scaling #Statistical physics #Theoretical physics #Universe #gr-qc
paper · pdf · doi:10.1142/s0218271817501644
published as International Journal of Modern Physics D Vol. 26 (2017) 1750164 · 12 pages,3 figures
openalex publication_date 2017/08/08 · arxiv created 2017/11/08 · arxiv updated 2017/11/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this paper, we discuss the dynamics of two- scalar-field cosmological models. Unlike in the situation of exponential potential, we find that there are late-time attractors in which one scalar field dominates the energy density of universe and the other one decay. We also discuss the possibility of multiple attractors model which is useful to realize the evolution of the universe from a scaling era to recent acceleration era. We also give the conditions of the existence of multiple attractors.