714 citations
- Max Planck Institute for Gravitational PhysicsDE10 papers
- California Institute of TechnologyUS8 papers
- Harish-Chandra Research InstituteIN8 papers
- Lomonosov Moscow State UniversityRU7 papers
- National Centre for Radio AstrophysicsIN7 papers
- University of SouthamptonGB7 papers
- Andrews UniversityUS6 papers
- Australian National UniversityAU6 papers
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- Charles Sturt UniversityAU6 papers
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9 papers · 1 filter
Path integral duality modified propagators in spacetimes with constant curvature
Dawood Kothawala, L. Sriramkumar, S. Shankaranarayanan +1
The hypothesis of path integral duality provides a prescription to evaluate the propagator of a free, quantum scalar field in a given classical background, taking into account the…
Particle creation in a time-dependent electric field revisited
Gaurang Mahajan
We adopt the general formalism for analyzing evolution of gaussian states of quantized fields in time-dependent backgrounds in the Schrodinger picture (presented in detail in arXiv…
Not One Bit of de Sitter Information
Maulik K. Parikh, Jan Pieter van der Schaar
We formulate the information paradox in de Sitter space in terms of the no-cloning principle of quantum mechanics. We show that energy conservation puts an upper bound on the maxim…
Quantum gravitational corrections to the stress-energy tensor around the rotating BTZ black hole
Dawood A. Kothawala, S. Shankaranarayanan, L. Sriramkumar
Modes emerging out of a collapsing black hole are red-shifted to such an extent that Hawking radiation at future null infinity consists of modes that have energies beyond the Planc…
Origin of matter out of pure curvature
Naresh Dadhich, Hideki Maeda
We propose a mechanism for origin of matter in the universe in the framework of Einstein-Gauss-Bonnet gravity in higher dimensions. The recently discovered new static black hole so…
de Sitter branes with a bulk scalar
Supratik Pal, Sayan Kar
We propose new braneworld models arising from a scalar field in the bulk. In these examples, the induced on--brane line element is de Sitter (or anti de Sitter) and the bulk (five…