188 citations · 747 across the 28 of their papers we have counts for
6 papers · 1 filter
Observation of noise correlated by the Hawking effect in a water tank
L. -P. Euvé, F. Michel, R. Parentani +2
We measured the power spectrum and two-point correlation function for the randomly fluctuating free surface on the downstream side of a stationary flow with a maximum Froude number…
No hair theorems for analogue black holes
Florent Michel, Renaud Parentani, Robin Zegers
We show that transonic one dimensional flows which are analogous to black holes obey no-hair theorems both at the level of linear perturbations and in non-linear regimes. Consideri…
Mode mixing in sub- and trans-critical flows over an obstacle: When should Hawking's predictions be recovered?
Florent Michel, Renaud Parentani
We reexamine the scattering coefficients of shallow water waves blocked by a stationary counter current over an obstacle. By considering series of background flows, we show that th…
Black hole radiation in the presence of a universal horizon
Florent Michel, Renaud Parentani
In Hořava and Einstein-Æther theories of modified gravity, in spite of the violation of Lorentz invariance, spherically-symmetric stationary black hole solutions possess an inner u…
Slow Sound in a duct, effective transonic flows and analogue black holes
Yves Aurégan, Pierre Fromholz, Florent Michel +2
We propose a new system suitable for studying analogue gravity effects, consisting of a gas flowing in a duct with a compliant wall. Effective transonic flows are obtained from uni…
Non-linear effects in time-dependent transonic flows: An analysis of analogue black hole stability
Florent Michel, Renaud Parentani
We study solutions of the one-dimensional Gross-Pitaevskii equation to better understand dynamical instabilities occurring in flowing atomic condensates. Whereas transonic stationa…