Abstract
We study the evolution of a system of interacting ultracold bosons which presents nonlinear, chaotic behaviors in the limit of a very large number of particles. Using the spectral entropy as an indicator of chaos and three different numerical approaches—exact diagonalization, the truncated Husimi method, and the mean-field (Gross-Pitaevskii) approximation—we put into evidence the destructive impact of quantum noise on the emergence of nonlinear dynamics.
- Received 28 January 2015
DOI:https://doi.org/10.1103/PhysRevA.91.043603
©2015 American Physical Society