132 citations · 1.3k across the 45 of their papers we have counts for
47 papers
Entanglement production through a cosmological bounce
Viqar Husain, Irfan Javed, Sanjeev S. Seahra +1
In quantum cosmology, it is expected that the Big Bang singularity is resolved and the universe undergoes a bounce. We find that for Gaussian initial states, matter-gravity entangl…
Motivating semiclassical gravity: a classical-quantum approximation for bipartite quantum systems
Viqar Husain, Irfan Javed, Sanjeev S. Seahra +1
We derive a "classical-quantum" approximation scheme for a broad class of bipartite quantum systems from fully quantum dynamics. In this approximation, one subsystem evolves via cl…
The singularity in mimetic Kantowski-Sachs cosmology
Marco de Cesare, Sanjeev S. Seahra, Edward Wilson-Ewing
The dynamics of the vacuum Kantowski-Sachs space-time are studied in the so-called limiting curvature mimetic gravity theory. It is shown that in this theory the vacuum Kantowski-S…
The initial value problem for gravitational waves in conformal gravity
Sanjeev S. Seahra
In certain models of conformal gravity, the propagation of gravitational waves is governed by a fourth order scalar partial differential equation. We study the initial value proble…
Velocity-dependent deformations of the energy spectrum of a quantum cavity from Lorentz symmetry violations
Jarod George Kelly, Sanjeev S. Seahra
Several approaches to quantum gravity suggest that Lorentz invariance will be broken at high energy. This can lead to modified dispersion relations for wave propagation, which can…
Natural Inflation from Polymer Quantization
Masooma Ali, Sanjeev S. Seahra
We study the polymer quantization of a homogeneous massive scalar field in the early universe using a prescription inequivalent to those previously appearing in the literature. Spe…