6 papers
An effective Friedmann equation for a bouncing anisotropic universe
Syed Moeez Hassan
We derive generalized effective Friedmann and Raychaudhuri equations for a bouncing polymer quantized Bianchi-I spacetime. We further prove that the relation numerically derived in…
Monte Carlo quantum cosmology with a modified Euclidean action
Malaik Kabir, Syed Moeez Hassan
We numerically study the Euclidean quantum cosmology of a closed, homogeneous and isotropic universe with a cosmological constant. A dust field acts as a clock, and we compute the…
Polymer Bianchi-I with polymer matter
Aleena Zulfiqar, Syed Moeez Hassan
We analyze the effective dynamics of a polymer quantized Bianchi-I universe coupled to a polymer quantized scalar field, with a pressureless dust field acting as an internal clock.…
Semiclassical polymer field with a cubic potential in cosmology
Ahsan Mujtaba, Syed Moeez Hassan
We study the semiclassical dynamics of a polymer quantized scalar field with a cubic potential in cosmology. The cosmological spacetime is chosen to be homogeneous and isotropic, a…
Polymer cosmology with polymer matter: Effective dynamics
Aleena Zulfiqar, Syed Moeez Hassan
We study the effective dynamics of a polymer quantized scalar field living on an effective polymer quantized homogeneous and isotropic background. We use a presureless dust field a…
From global time to local physics
Syed Moeez Hassan, Viqar Husain, Babar Qureshi
Global time is a gauge or relational choice of time variable in canonical gravity. Local time is the time used in a flat patch of spacetime. We compare the dynamics of a scalar fie…