275 citations · 1k across the 11 of their papers we have counts for
11 papers
Compact cold atom clock for on-board timebase: tests in reduced gravity
Mehdi Langlois, Jean-Françcois Schaff, Luigi De Sarlo +3
We present a compact atomic clock using cold rubidium atoms based on an isotropic light cooling, a Ramsey microwave interrogation and an absorption detection. Its technology readin…
Matter-wave recombiners for trapped Bose-Einstein condensates
Tarik Berrada, Sandrine van Frank, Robert Bücker +5
Interferometry with trapped atomic Bose-Einstein condensates (BECs) requires the development of techniques to recombine the two paths of the interferometer and map the accumulated…
Interferometry with Atoms
J. -F. Schaff, T. Langen, J. Schmiedmayer
Optics and interferometry with matter waves is the art of coherently manipulating the translational motion of particles like neutrons, atoms and molecules. Coherent atom optics is…
Interferometry with non-classical motional states of a Bose-Einstein condensate
Sandrine van Frank, Antonio Negretti, Tarik Berrada +6
We demonstrate a two-pulse Ramsey-type interferometer for non-classical motional states of a Bose-Einstein condensate in an anharmonic trap. The control pulses used to manipulate t…
Integrated Mach-Zehnder interferometer for Bose-Einstein condensates
Tarik Berrada, Sandrine van Frank, Robert Bücker +3
Particle-wave duality enables the construction of interferometers for matter waves, which complement optical interferometers in precision measurement devices. This requires the dev…
Vibrational state inversion of a Bose-Einstein condensate: optimal control and state tomography
Robert Bücker, Tarik Berrada, Sandrine van Frank +6
We present theoretical and experimental results on high-fidelity transfer of a trapped Bose-Einstein condensate into its first vibrationally excited eigenstate. The excitation is d…
Enhanced backscattering of a dilute Bose-Einstein condensate
Guillaume Labeyrie, Tomasz Karpiuk, Jean-François Schaff +3
We study experimentally and numerically the quasi-bidimensional transport of a Rb Bose-Einstein condensate launched with a velocity inside a disordered optical potenti…
Shortcuts to adiabaticity for trapped ultracold gases
Jean-François Schaff, Pablo Capuzzi, Guillaume Labeyrie +1
We study, experimentally and theoretically, the controlled transfer of harmonically trapped ultracold gases between different quantum states. In particular we experimentally demons…
Shortcut to adiabaticity for an interacting Bose-Einstein condensate
Jean-François Schaff, Xiao-Li Song, Pablo Capuzzi +2
We present an investigation of the fast decompression of a three-dimensional (3D) Bose-Einstein condensate (BEC) at finite temperature using an engineered trajectory for the harmon…
Fast optimal transition between two equilibrium states
Jean-François Schaff, Xiao-Li Song, Patrizia Vignolo +1
We demonstrate a technique based on invariants of motion for a time-dependent Hamiltonian, allowing a fast transition to a final state identical in theory to that obtained through…
Localization-Delocalization Transition in the Random Dimer Model
Jean-François Schaff, Zehra Akdeniz, Patrizia Vignolo
The random-dimer model is probably the most popular model for a one-dimensional disordered system where correlations are responsible for delocalization of the wave functions. This…