Areas of interest
Our current research interests include:
- Inflationary cosmology and the cosmic microwave background
- Deviations from slow roll inflation and generation of features in the inflationary perturbation spectrum - Comparison with the observations of the cosmic microwave background
- Generation and imprints of perturbations in multi-field inflationary models
- Origin and evolution of primordial non-Gaussianities - Efficient numerical computation of the three-point functions involving scalars as well as tensors - Consistency relations
- Post-inflationary dynamics and its effects on the evolution of large scale perturbations
- Alternatives to inflation - Generation and evolution of perturbations in bouncing models
- Generation of magnetic fields in the early universe - Cross correlations between magnetic fields and scalar as well as tensor perturbations
- Quantum-to-classical transition of the primordial perturbations
- Planck scale effects during inflation - Imprints on the cosmic microwave background
- Aspects of black hole physics
- Hawking radiation - Possible quantum gravitational modifications
- Entropy of black holes and black strings - Corrections to the Bekenstein-Hawking entropy
- Entropy bounds - Trans-Planckian modes and the validity of entropy bounds in the early universe
- Quantum field theory in classical backgrounds
- Unruh effect - Detecting thermal effects in spacetimes with horizons
- Vacuum polarization and particle production - Backreaction on the classical background
- Radiation reaction and the fluctuation-dissipation theorem
- Fluctuations in the backreaction term - Domain of validity of semi-classical gravity
- Quantum gravitational corrections to semi-classical effects