Scaling dynamics of the ultracold Bose gas

Ashton S. Bradley, Jordan Clarke, Tyler W. Neely, and Brian P. Anderson, Phys. Rev. A 106, 053316 – Published 18 November 2022

The large-scale expansion dynamics of quantum gases is a central tool for ultracold gas experiments and poses a significant challenge for theory. In this work we provide an exact reformulation of the Gross-Pitaevskii equation for the ultracold Bose gas in a coordinate frame that adaptively scales with the system size during evolution, enabling simulations of long evolution times during expansion or similar large-scale manipulation.”

https://doi.org/10.1103/PhysRevA.106.053316