no code implementations • 3 Mar 2021 • Debaprasad Maity, Sourav Pal, Tanmoy Paul
Effective theory framework based on symmetry has recently gained widespread interest in the field of cosmology.
High Energy Physics - Theory Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology
no code implementations • 23 Dec 2020 • Kazuharu Bamba, E. Elizalde, S. D. Odintsov, Tanmoy Paul
We investigate the generation of magnetic fields from inflation, which occurs via breakdown of the conformal invariance of the electromagnetic (EM) field, when coupled with the Ricci scalar and the Gauss-Bonnet invariant.
General Relativity and Quantum Cosmology
no code implementations • 24 Nov 2020 • Indrani Banerjee, Tanmoy Paul, Soumitra SenGupta
The presence of brane cosmological constant renders the branes to be non-flat and gives rise to a potential and a non-canonical kinetic term for the radion field in the four dimensional effective action.
General Relativity and Quantum Cosmology
