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Instabilities of a Bose-Einstein condensate in a periodic potential: an experimental investigation
M. Cristiani, O. Morsch, N. Malossi +4
By accelerating a Bose-Einstein condensate in a controlled way across the edge of the Brillouin zone of a 1D optical lattice, we investigate the stability of the condensate in the…
Ultracold atoms and Bose-Einstein condensates in optical lattices
O. Morsch, E. Arimondo
For ultracold and Bose-condensed atoms contained in periodic optical potential wells the quantized nature of their motion is clearly visible. The motion of the atomic wavepacket ca…
Dynamics and phase evolution of Bose-Einstein condensates in one-dimensional optical lattices
O. Morsch, M. Cristiani, J. H. Müller +2
We report experimental results on the dynamics and phase evolution of Bose-Einstein condensates in 1D optical lattices. The dynamical behaviour is studied by adiabatically loading…
Coherent acceleration and Landau-Zener tunneling of Bose-Einstein condensates in 1-D optical lattices
O. Morsch, J. H. Müller, M. Cristiani +1
We have loaded Bose-Einstein condensates into one-dimensional, off-resonant optical lattices and accelerated them by chirping the frequency difference between the two lattice beams…