58 citations · 243 across the 12 of their papers we have counts for
13 papers
Reinforcement Learning in Ultracold Atom Experiments
Malte Reinschmidt, József Fortágh, Andreas Günther +1
Cold atom traps are at the heart of many quantum applications in science and technology. The preparation and control of atomic clouds involves complex optimization processes, that…
Bichromatic state-dependent disordered potential for Anderson localization of ultracold atoms
Baptiste Lecoutre, Yukun Guo, Xudong Yu +5
The ability to load ultracold atoms at a well-defined energy in a disordered potential is a crucial tool to study quantum transport, and in particular Anderson localization. In thi…
Ultracold Atoms in Disordered Potentials: Elastic Scattering Time in the Strong Scattering Regime
Adrien Signoles, Baptiste Lecoutre, Jérémie Richard +8
We study the elastic scattering time of ultracold atoms propagating in optical disordered potentials in the strong scattering regime, going beyond the recent work of…
On the Transfer of Inductive Bias from Simulation to the Real World: a New Disentanglement Dataset
Muhammad Waleed Gondal, Manuel Wüthrich, Đorđe Miladinović +7
Learning meaningful and compact representations with disentangled semantic aspects is considered to be of key importance in representation learning. Since real-world data is notori…
Elastic Scattering Time of Matter-Waves in Disordered Potentials
Jérémie Richard, Lih-King Lim, Vincent Denechaud +8
We report on an extensive study of the elastic scattering time $\tauS$ of matter-waves in optical disordered potentials. Using direct experimental measurements, numerical simulatio…
Automatic Estimation of Modulation Transfer Functions
Matthias Bauer, Valentin Volchkov, Michael Hirsch +1
The modulation transfer function (MTF) is widely used to characterise the performance of optical systems. Measuring it is costly and it is thus rarely available for a given lens sp…
Measurement of spectral functions of ultracold atoms in disordered potentials
Valentin V. Volchkov, Michael Pasek, Vincent Denechaud +4
We report on the measurement of the spectral functions of noninteracting ultracold atoms in a three-dimensional disordered potential resulting from an optical speckle field. Varyin…
Suppression and Revival of Weak Localization through Control of Time-Reversal Symmetry
Kilian Müller, Jérémie Richard, Valentin V. Volchkov +4
We report on the observation of suppression and revival of coherent backscattering of ultra-cold atoms launched in an optical disorder and submitted to a short dephasing pulse, as…
Sisyphus cooling in a continuously loaded trap
Valentin V. Volchkov, Jahn Rührig, Tilman Pfau +1
We demonstrate continuous Sisyphus cooling combined with a continuous loading mechanism used to efficiently slow down and accumulate atoms from a guided beam. While the loading its…
Efficient demagnetization cooling of atoms and its limits
Valentin V. Volchkov, Jahn Rührig, Tilman Pfau +1
Demagnetization cooling relies on spin-orbit coupling that brings motional and spin degrees of freedom into thermal equilibrium. In the case of a gas, one has the advantage that th…
Evaporation limited loading of an atom trap
Markus Falkenau, Valentin V. Volchkov, Jahn Rührig +2
Recently, we have experimentally demonstrated a continuous loading mechanism for an optical dipole trap from a guided atomic beam [1]. The observed evolution of the number of atoms…
Continuous Loading of a Conservative Trap from an Atomic Beam
Markus Falkenau, Valentin V. Volchkov, Jahn Rührig +2
We demonstrate the fast accumulation of Cr atoms in a conservative potential from a magnetically guided atomic beam. Without laser cooling on a cycling transition, a single dissipa…
Laser cooling of a magnetically guided ultra cold atom beam
Anoush Aghajani-Talesh, Markus Falkenau, Valentin V. Volchkov +3
We report on the transverse laser cooling of a magnetically guided beam of ultra cold chromium atoms. Radial compression by a tapering of the guide is employed to adiabatically hea…