224 citations · 626 across the 9 of their papers we have counts for
9 papers
Directed Transport of Atoms in a Hamiltonian Quantum Ratchet
Tobias Salger, Sebastian Kling, Tim Hecking +3
We demonstrate the operation of a quantum ratchet in the absence of dissipative processes within the observation time (Hamiltonian regime). An atomic rubidium Bose-Einstein condens…
Bloch oscillations of atoms in an optical multiphoton potential
Tobias Salger, Gunnar Ritt, Carsten Geckeler +2
We report on experiments studying transport properties of an atomic Bose-Einstein condensate in an optical lattice of spatial period , where is an integer, realized with…
Atomic Landau-Zener tunneling in Fourier-synthesized optical lattices
Tobias Salger, Carsten Geckeler, Sebastian Kling +1
We report on an experimental study of quantum transport of atoms in variable periodic optical potentials. The band structure of both ratchet-type asymmetric and symmetric lattice p…
Fourier synthesis of optical potentials for atomic quantum gases
Gunnar Ritt, Carsten Geckeler, Tobias Salger +2
We demonstrate a scheme for the Fourier synthesis of periodic optical potentials with asymmetric unit cells for atoms. In a proof of principle experiment, an atomic Bose-Einstein c…
Interference of an array of atom lasers
Giovanni Cennini, Carsten Geckeler, Gunnar Ritt +1
We report on the observation of interference of a series of atom lasers. A comb-like array of coherent atomic beams is generated by outcoupling atoms from distinct Bose-Einstein co…
Interference of a variable number of coherent atomic sources
Giovanni Cennini, Carsten Geckeler, Gunnar Ritt +1
We have studied the interference of a variable number of independently created microcondensates in a CO-laser optical lattice. The observed average interference contr…