3 papers
gr-qc2026
Dynamical model for black hole to white hole transitions
Samantha Hergott, Viqar Husain, Saeed Rastgoo
We present an asymptotically flat spherically symmetric non-singular metric that describes gravitational collapse and matter bounce with transient black hole and white hole regions…
gr-qc2025
Anomaly in canonical semiclassical gravity
Viqar Husain, Irfan Javed
We show that the canonical formulation of the semiclassical Einstein equation, where the matter terms in the constraints are replaced by expectation values of the corresponding ope…
gr-qc2025
Regular black holes and boson stars in semiclassical gravity
Irfan Javed, Viqar Husain
We use a Hamiltonian version of the semiclassical Einstein equation to study classical gravity coupled to a quantum scalar field with potential in spherical symmetry. The system is…