340 citations · 504 across the 8 of their papers we have counts for
8 papers
Tunneling of Dirac electrons through spatial regions of finite mass
J. Viana Gomes, N. M. R. Peres
We study the tunneling of chiral electrons in graphene through a region where the electronic spectrum changes from the usual linear dispersion to a hyperbolic dispersion, due to th…
Producing and Detecting Correlated atoms
Christoph I. Westbrook, Martijn Schellekens, Aurélien Perrin +12
We discuss experiments to produce and detect atom correlations in a degenerate or nearly degenerate gas of neutral atoms. First we treat the atomic analog of the celebrated Hanbury…
Theory for a Hanbury Brown Twiss experiment with a ballistically expanding cloud of cold atoms
Jose Viana Gomes, Aurélien Perrin, Martijn Schellekens +3
We have studied one-body and two-body correlation functions in a ballistically expanding, non-interacting atomic cloud in the presence of gravity. We find that the correlation func…
Atomic density of an harmonically trapped ideal gas near Bose-Einstein transition temperature
Rodolphe Hoppeler, Jose Viana Gomes, Denis Boiron
We have studied the atomic density of a cloud confined in an isotropic harmonic trap at the vicinity of the Bose-Einstein transition temperature. We show that, for a non-interactin…
Hanbury Brown Twiss effect for ultracold quantum gases
M. Schellekens, R. Hoppeler, A. Perrin +4
We have studied 2-body correlations of atoms in an expanding cloud above and below the Bose-Einstein condensation threshold. The observed correlation function for a thermal cloud s…
Getting the elastic scattering length by observing inelastic collisions in ultracold metastable helium atoms
Signe Seidelin, Rodolphe Hoppeler, Olivier Sirjean +4
We report an experiment measuring simultaneously the temperatureand the flux of ions produced by a cloud of triplet metastablehelium atoms at the Bose-Einstein critical temperature…