1.2k citations · 4k across the 27 of their papers we have counts for
12 papers · 1 filter
A purely dipolar quantum gas
T. Lahaye, J. Metz, T. Koch +3
We report on experiments exploring the physics of dipolar quantum gases using a Chromium Bose-Einstein condensate (BEC). By means of a Feshbach resonance, it is possible to reduce…
d-wave collapse and explosion of a dipolar Bose-Einstein condensate
Thierry Lahaye, Jonas Metz, Bernd Froehlich +7
We investigate the collapse dynamics of a dipolar condensate of 52Cr atoms when the s-wave scattering length characterizing the contact interaction is reduced below a critical valu…
Stabilizing a purely dipolar quantum gas against collapse
T. Koch, T. Lahaye, J. Metz +3
We report on the experimental observation of the dipolar collapse of a quantum gas which sets in when we reduce the contact interaction below some critical value using a Feshbach r…
Strong dipolar effects in a quantum ferrofluid
Thierry Lahaye, Tobias Koch, Bernd Froehlich +5
We report on the realization of a Chromium Bose-Einstein condensate (BEC) with strong dipolar interaction. By using a Feshbach resonance, we reduce the usual isotropic contact inte…
Loading chromium atoms in a magnetic guide
A. Greiner, J. Sebastian, P. Rehme +3
We have realized a magnetic guide for ultracold chromium atoms by continuously loading atoms directly from a Zeeman slower into a horizontal guide. We observe an atomic flux of $2…
Damagnetization cooling of a gas
M. Fattori, T. Koch, S. Goetz +4
We demonstrate demagnetization cooling of a gas of ultracold Cr atoms. Demagnetization is driven by inelastic dipolar collisions which couple the motional degrees of freedom…
Comparing contact and dipolar interaction in a Bose-Einstein condensate
Axel Griesmaier, Jürgen Stuhler, Tobias Koch +3
We have measured the relative strength of the magnetic dipole-dipole interaction compared to the contact interaction in a chromium Bose-Einstein condensate. We analyze the a…
Expansion dynamics of a dipolar Bose-Einstein condensate
S. Giovanazzi, P. Pedri, L. Santos +5
Our recent measurements on the expansion of a chromium dipolar condensate after release from an optical trapping potential are in good agreement with an exact solution of the hydro…
Observation of dipole-dipole interaction in a degenerate quantum gas
J. Stuhler, A. Griesmaier, T. Koch +5
We have investigated the expansion of a Bose-Einstein condensate (BEC) of strongly magnetic chromium atoms. The long-range and anisotropic magnetic dipole-dipole interaction leads…
Production of a chromium Bose-Einstein condensate
Axel Griesmaier, Jürgen Stuhler, Tilman Pfau
The recent achievement of Bose-Einstein condensation of chromium atoms [1] has opened longed-for experimental access to a degenerate quantum gas with long-range and anisotropic int…
Bose-Einstein condensation of chromium
Axel Griesmaier, Jörg Werner, Sven Hensler +2
We report on the generation of a Bose-Einstein condensate in a gas of chromium atoms, which will make studies of the effects of anisotropic long-range interactions in degenerate qu…
Observation of Feshbach resonances in an ultracold gas of Cr
J. Werner, A. Griesmaier, S. Hensler +4
We have observed Feshbach resonances in elastic collisions between ultracold Cr atoms. This is the first observation of collisional Feshbach resonances in an atomic specie…