From the 2 of 6 linked papers with an AI index.
6 papers
An effective Friedmann equation for a bouncing anisotropic universe
Syed Moeez Hassan
The paper derives effective Friedmann and Raychaudhuri equations for a polymer‑quantized Bianchi‑I universe that undergoes a bounce, and shows analytically that the known relation…
Polymer Bianchi-I with polymer matter
Aleena Zulfiqar, Syed Moeez Hassan
The paper investigates the effective dynamics of a Bianchi‑I universe where both the geometry and a scalar field are polymer‑quantized, using a dust field as an internal clock, and…
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…
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…