312 citations · 588 across the 12 of their papers we have counts for
6 papers · 1 filter
A Primer for Black Hole Quantum Physics
Robert Brout, Serge Massar, Renaud Parentani +1
The mechanisms which give rise to Hawking radiation are revealed by analyzing in detail pair production in the presence of horizons. In preparation for the black hole problem, thre…
Confronting the trans-Planckian question of inflationary cosmology with dissipative effects
Renaud Parentani
We provide a class of QFTs which exhibit dissipation above a threshold energy, thereby breaking Lorentz invariance. Unitarity is preserved by coupling the fields to additional degr…
Hawking radiation from extremal and non-extremal black holes
R. Balbinot, A. Fabbri, S. Farese +1
The relationship between Hawking radiation emitted by non extremal and extremal Reissner Nordstrom black holes is critically analyzed. A careful study of a series of regular collap…
Damped Corrections to Inflationary Spectra from a Fluctuating Cutoff
David Campo, Jens Niemeyer, Renaud Parentani
We reconsider trans-Planckian corrections to inflationary spectra by taking into account a physical effect which has been overlooked and which could have important consequences. We…
Beyond the semi-classical description of black hole evaporation
Renaud Parentani
In the semi-classical treatment, i.e. in a classical black hole geometry, Hawking quanta emerge from trans-Planckian configurations because of scale invariance. There is indeed no…
Black hole entanglement entropy regularized in a freely falling frame
Ted Jacobson, Renaud Parentani
We compute the black hole horizon entanglement entropy S_E for a massless scalar field, first with a hard cutoff and then with high frequency dispersion, both imposed in a frame th…