598 citations · 2.1k across the 13 of their papers we have counts for
6 papers · 1 filter
Spin waves in a Bose Ferromagnet
Qiang Gu, Kai Bongs, Klaus Sengstock
It is shown that the ferromagnetic transition takes place always above Bose-Einstein condensation in ferromagnetically coupled spinor Bose gases. We describe the Bose ferromagnet w…
Bose-Einstein condensation at constant temperature
M. Erhard, H. Schmaljohann, J. Kronjäger +2
We present a novel experimental approach to Bose-Einstein condensation by increasing the particle number of the system at almost constant temperature. In particular the emergence o…
Dynamics of F=2 Spinor Bose-Einstein Condensates
H. Schmaljohann, M. Erhard, J. Kronjäger +5
We experimentally investigate and analyze the rich dynamics in F=2 spinor Bose-Einstein condensates of Rb87. An interplay between mean-field driven spin dynamics and hyperfine-chan…
Second Order Correlation Function of a Phase Fluctuating Bose-Einstein Condensate
L. Cacciapuoti, D. Hellweg, M. Kottke +6
The coherence properties of phase fluctuating Bose-Einstein condensates are studied both theoretically and experimentally. We derive a general expression for the N-particle correla…
Measurement of the Spatial Correlation Function of Phase Fluctuating Bose-Einstein Condensates
D. Hellweg, L. Cacciapuoti, M. Kottke +4
We measure the intensity correlation function of two interfering spatially displaced copies of a phase fluctuating Bose-Einstein Condensate (BEC). It is shown that this corresponds…
Characterization and control of phase fluctuations in elongated Bose-Einstein condensates
H. Kreutzmann, A. Sanpera, L. Santos +7
Quasi one dimensional Bose-Einstein condensates (BECs) in elongated traps exhibit significant phase fluctuations even at very low temperatures. We present recent experimental resul…