23 citations · 23 across the 3 of their papers we have counts for
5 papers
A simple and efficient algorithm for computing the Baker-Campbell-Hausdorff series
Harald Hofstätter
A new algorithm for computing coefficients of the Baker--Campbell--Hausdorff series is presented, which can be straightforwardly implemented in any general-purpose programming lang…
Smallest common denominators for the homogeneous components of the Baker-Campbell-Hausdorff series
Harald Hofstätter
In a recent paper the author derived a formula for calculating common denominators for the homogeneous components of the Baker-Campbell-Hausdorff (BCH) series. In the present work…
Denominators of coefficients of the Baker-Campbell-Hausdorff series
Harald Hofstätter
For the computation of terms of the Baker-Campbell-Hausdorff series $H = \log(e^Ae^B})$ some a priori knowledge about the denominators of the coefficients of the series can be bene…
Chaos-induced depletion of a Bose-Einstein condensate
Ralf Wanzenböck, Stefan Donsa, Harald Hofstätter +3
The mean-field limit of a bosonic quantum many-body system is described by (mostly) non-linear equations of motion which may exhibit chaos very much in the spirit of classical part…
Long-time expansion of a Bose-Einstein condensate: Can Anderson localization be observed?
Stefan Donsa, Harald Hofstätter, Othmar Koch +2
We numerically explore the long-time expansion of a one-dimensional Bose-Einstein condensate in a disorder potential employing the Gross-Pitaevskii equation. The goal is to search…