Spread complexity and dynamical transition in multimode Bose-Einstein condensates
Spread complexity and dynamical transition in multimode Bose-Einstein condensates
We study the spread complexity in two-mode Bose-Einstein condensates and unveil that the long-time average of the spread complexity ${\overline{C}}_{K}$ can probe the dynamical transition from self-trapping to Josephson oscillation. When the parameter $\ensuremath{\omega}$ increases over a critical value ${\ensuremath{\omega}}_{c}$, we reveal that the spread complexity exhibits a sharp transition …