6 papers
Cosmological Inflation in f(R,T) Gravity with Chern-Simons Correction
Maryam Shiravand, Saeed Fakhry, Mehrdad Farhoudi
We investigate cosmological inflation within the framework of a linear form of f (R, T ) gravity that incorporates an inflaton scalar field augmented by a Chern-Simons correction i…
Inflation with Gauss-Bonnet Correction and Higgs Potential
Zahra Ahghari, Mehrdad Farhoudi
We investigate the cosmological inflation for the Einstein-Hilbert action plus the Higgs potential function and the Gauss-Bonnet term coupled with the Higgs scalar field through a…
Gravitomagnetism from Temporal Dimensional Reduction
Mehran Z-Abyaneh, Mehrdad Farhoudi
We reduce the Taub-NUT metric dimensionally to three spatial dimensions by treating time as an extra curled dimension, and end up with the 3-dimensional Einstein field equations pl…
Chameleon Gravity as an Alternative to Dark Matter
Raziyeh Zaregonbadi, Nasim Saba, Mehrdad Farhoudi
By studying the chameleon gravity on galaxy scales, we investigate the effects of the chameleon dark matter. To perform this task, we consider the dynamics of the chameleon scalar…
Symmetries of Weyl Superconductors with Different Pairings
Mehran Z-Abyaneh, Mehrdad Farhoudi, Mahdi Mashkoori
We examine the Bogoliubov-de Gennes Hamiltonian and its symmetries for a time-reversal symmetry broken three dimensional Weyl superconductor. In the limit of vanishing pairing pote…
Metric Field as Emergence of Hilbert Space
Maysam Yousefian, Mehrdad Farhoudi
First, we explain some ambiguities of spacetime and metric field as fundamental concepts. Then, from the Unruh effect point of view and using the Gelfand-Naimark-Segal construction…