Monopole Inflation in Brans-Dicke Theory
Nobuyuki Sakai, Jun'ichi Yokoyama, Kei-ichi Maeda
Abstract
According to previous work, topological defects expand exponentially without an end if the vacuum expectation value of the Higgs field is of the order of the Planck mass. We extend the study of inflating topological defects to the Brans-Dicke gravity. With the help of numerical simulation we investigate the dynamics and spacetime structure of a global monopole. Contrary to the case of the Einstein gravity, any inflating monopole eventually shrinks and takes a stable configuration. We also discuss cosmological constraints on the model parameters.
Create a lesson
Related papers
Quasibound states of charged Dirac fields around Einstein-Euler-Heisenberg black holes
Nodirbek Anarboev, Javlonbek Khasanov, Javlon Rayimbaev et al.
Large mass-ratio (3< q ≤ 10) inspiral-merger-ringdown model for eccentric binary black holes
Pratul Manna, Tamal RoyChowdhury, Chandra Kant Mishra
Where is the conformal coupling in Palatini gravity?
Alexandros Karam, Sotirios Karamitsos
Hamiltonian surface charges in General Parallel Relativity
Tomi Koivisto
Analytic Brill wave initial data with trapped surfaces
Piotr Koc
Optical Signatures of a Black Hole in Effective Quantum Gravity
Jonibek Khasanov, Xuwei Zhang, Mirzabek Alloqulov et al.