188 citations · 747 across the 28 of their papers we have counts for
6 papers · 1 filter
Nonlinearities induced by parametric resonance in effectively 1D atomic Bose condensates
Scott Robertson, Florent Michel, Renaud Parentani
We present a numerical study of the dynamical effects following a sudden change of the transverse trapping frequency in an elongated Bose-Einstein condensate, which induces periodi…
Assessing degrees of entanglement of phonon states in atomic Bose gases through the measurement of commuting observables
Scott Robertson, Florent Michel, Renaud Parentani
We show that measuring commuting observables can be sufficient to assess that a bipartite state is entangled according to either nonseparability or the stronger criterion of 'steer…
Controlling and observing nonseparability of phonons created in time-dependent 1D atomic Bose condensates
Scott Robertson, Florent Michel, Renaud Parentani
We study the spectrum and entanglement of phonons produced by temporal changes in homogeneous one-dimensional atomic condensates. To characterize the experimentally accessible chan…
Phonon spectrum and correlations in a transonic flow of an atomic Bose gas
Florent Michel, Jean-François Coupechoux, Renaud Parentani
Motivated by a recent experiment of J.~Steinhauer, we reconsider the spectrum and the correlations of the phonons spontaneously emitted in stationary transonic flows. The latter ar…
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…
Saturation of black hole lasers in Bose-Einstein condensates
Florent Michel, Renaud Parentani
To obtain the end-point evolution of the so-called black hole laser instability, we study the set of stationary solutions of the Gross-Pitaevskii equation for piecewise constant po…