5 papers
Shape oscillations in non-degenerate Bose gases - transition from the collisionless to the hydrodynamic regime
Ch. Buggle, P. Pedri, W. von Klitzing +1
We investigate collective oscillations of non-degenerate clouds of Rb-87 atoms as a function of density in an elongated magnetic trap. For the low-lying M=0 monopole-quadrupole sha…
Interferometric determination of the s- and d-wave scattering amplitudes in Rb
Ch. Buggle, J. Léonard, W. von Klitzing +1
We demonstrate an interference method to determine the low-energy elastic scattering amplitudes of a quantum gas. We linearly accelerate two ultracold atomic clouds up to energies…
Hydrodynamic behavior in expanding thermal clouds of Rb-87
I. Shvarchuck, Ch. Buggle, D. S. Petrov +4
We study hydrodynamic behavior in expanding thermal clouds of Rb-87 released from an elongated trap. At our highest densities the mean free path is smaller than the radial size of…
Bose-Einstein condensation in a magnetic double-well potential
T. G. Tiecke, M. Kemmann, Ch. Buggle +3
We present the first experimental realisation of Bose-Einstein condensation in a purely magnetic double-well potential. This has been realised by combining a static Ioffe-Pritchard…
Bose-Einstein condensation into non-equilibrium states studied by condensate focusing
I. Shvarchuck, Ch. Buggle, D. S. Petrov +7
We report the formation of Bose-Einstein condensates into non-equilibrium states. Our condensates are much longer than equilibrium condensates with the same number of atoms, show s…