ATUS - Atominterferometrie unter Schwerelosigkeit

With the beginning of the project ATUS theoretical and numerical support for PRIMUS was established. Here  we aim at performing numerical modelling of experiments utilizing ultracold quantum gases and the development of a full simulation package for the matterwave interferometer of the PRIMUS apparatus. 
This is accompanied by investigating structure formation in Bose-Einstein condensates like, e.g. topological coherent modes ("excited states") in gravito-optical traps, harmonic traps etc. as well as studying dual species configurations in various trap configurations. The methods which we employ are, for example, imaginary-time-, operator-splitting- and pseudo-spectral methods, as well as a self-developed modified Newton method for highly nonlinear time-independent Gross-Pitaevskii equations. Furthermore we aim at parallelizing and optimizing these algorithms to achieve high scalability for large computing environments (e.g. computer clusters).


The ATUS project is supported by the German Space agency DLR with funds provided by the Federal Ministry of economics and energy (BMWi) under grant number 50WM1342.