3 papers
gr-qc2026
Brans Dicke scalar-tensor gravity and unimodular FRW cosmology with Coleman-Weinberg potential
Manda Malekpour, Hossein Ghaffarnejad
As alternative gravity theories with respect to the general relativity, the Brans-Dicke (BD) scalar tensor model is well known for which the BD parameter is controller the best fit…
gr-qc2024
Stabilization of spherically symmetric static Boson stars by Coleman-Weinberg self-interaction potential
Firoozeh Eidizade, Hossein Ghaffarnejad
Our motivation in this work is due to the great importance of relativistic boson stars as fierce competitors of black holes. From theoretical perspective, they described by complex…
gr-qc2024
Thermodynamic phase transition of Anti-de Sitter Reissner-Nordström black holes with exotic Einstein-Maxwell gravities
Hossein Ghaffarnejad, Elham Ghasemi
To consider the inevitable cosmic magnetic effects instead of the unknown dark sector of matter/energy on the inflation phase of the expanding universe some authors have proposed s…