119 citations · 436 across the 31 of their papers we have counts for
Showing 2012 · gr-qcShow all
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gr-qc2012
A Note on Vacuum Polarisation and Hawking Radiation
Arundhati Dasgupta, Shohreh Rahmati
We re-examine vacuum polarisation of a scalar field in a quasi-local volume including the horizon. We find that Hawking radiation rate is derived as a pure decay of vacuum due to s…
gr-qc2012
Signs and Cosmology
Arundhati Dasgupta, Adamantia Zampeli
Using a new effective action predicted from quantum gravity where the sign of the Euclidean Einstein action is reversed we discuss WKB solutions in quantum cosmology and predict th…
gr-qc2012★ 10 cited
Semiclassical Loop Quantum Gravity and Black Hole Thermodynamics
Arundhati Dasgupta
In this article we explore the origin of black hole thermodynamics using semiclassical states in loop quantum gravity. We re-examine the case of entropy using a density matrix for…