201 citations · 531 across the 10 of their papers we have counts for
10 papers
Continuous-time random walk for a particle in a periodic potential
Andreas Dechant, Farina Kindermann, Artur Widera +1
Continuous-time random walks offer powerful coarse-grained descriptions of transport processes. We here microscopically derive such a model for a Brownian particle diffusing in a d…
Extreme Event Statistics in a Drifting Markov Chain
Farina Kindermann, Michael Hohmann, Tobias Lausch +3
We analyse extreme event statistics of experimentally realized Markov chains with various drifts. Our Markov chains are individual trajectories of a single atom diffusing in a one…
Observation of individual tracer atoms in an ultracold dilute gas
Michael Hohmann, Farina Kindermann, Tobias Lausch +4
Understanding the motion of a tracer particle in a rarefied gas is of fundamental and practical importance. We report the experimental investigation of individual Cs atoms impingin…
Nonergodic Diffusion of Single Atoms in a Periodic Potential
Farina Kindermann, Andreas Dechant, Michael Hohmann +5
Diffusion is a central phenomenon in almost all fields of natural science revealing microscopic processes from the observation of macroscopic dynamics. Here, we consider the paradi…
A Single Atom Thermometer for Ultracold Gases
Michael Hohmann, Farina Kindermann, Tobias Lausch +3
We use single or few Cs atoms as thermometer for an ultracold, thermal Rb cloud. Observing the thermometer atoms' thermalization with the cold gas using spatially resolved fluoresc…
Optimizing Quantum Gas Production by an Evolutionary Algorithm
Tobias Lausch, Michael Hohmann, Farina Kindermann +3
We report on the application of an evolutionary algorithm (EA) to enhance performance of an ultra-cold quantum gas experiment. The production of a Rubidium Bose-Einstein con…
Precision Measurement of the 87-Rb Tune-Out Wavelength in the Hyperfine Ground State F=1 at 790 nm
Felix Schmidt, Daniel Mayer, Michael Hohmann +3
We report on a precision measurement of the line tune-out wavelength of Rubidium in the hyperfine ground state manifold at 790 nm, where the s…
Neutral Impurities in a Bose-Einstein Condensate for Simulation of the Fröhlich-Polaron
Michael Hohmann, Farina Kindermann, Benjamin Gänger +4
We present an experimental system to study the Bose polaron by immersion of single, well-controllable neutral Cs impurities into a Rb Bose-Einstein condensate (BEC). We show that,…
Dynamics of single neutral impurity atoms immersed in an ultracold gas
Nicolas Spethmann, Farina Kindermann, Shincy John +3
We report on controlled doping of an ultracold Rb gas with single neutral Cs impurity atoms. Elastic two-body collisions lead to a rapid thermalization of the impurity inside the R…
Inserting single Cs atoms into an ultracold Rb gas
Nicolas Spethmann, Farina Kindermann, Shincy John +3
We report on the controlled insertion of individual Cs atoms into an ultracold Rb gas at about 400 nK. This requires to combine the techniques necessary for cooling, trapping and m…