191 citations · 1.8k across the 91 of their papers we have counts for
4 papers · 1 filter
On the Penrose inequality in anti-deSitter space
Viqar Husain, Suprit Singh
For asymptotically flat spacetimes the Penrose inequality gives an initial data test for the weak cosmic censorship hypothesis. We give a formulation of this inequality for asympto…
Mixmaster dynamics in the dust time gauge
Masooma Ali, Viqar Husain
We study the Hamiltonian dynamics of the dust-Bianchi IX universe in dust time gauge. This model has three physical metric degrees of freedom, with evolution determined by a time-i…
Quantum gravitational collapse as a Dirac particle on the half-line
Syed Moeez Hassan, Viqar Husain, Jonathan Ziprick
We show that the quantum dynamics of a thin spherical shell in general relativity is equivalent to the Coulomb-Dirac equation on the half line. The Hamiltonian has a one-parameter…
Semiclassical cosmology with polymer matter
Syed Moeez Hassan, Viqar Husain
In loop quantum cosmology, polymer quantization is applied to gravity and Schrodinger quantization to matter. This approach misses interesting cosmological dynamics coming from the…