Collisions of BECs - movies shown at ENS-Lyon, 2 July 2009

Single-trajectory slices across the scattered halo in k-space, perpendicular to the collision direction

Full Bogoliubov calculation

Most basic model: pair production only in Bogoliubov hamiltonian, and stiff condensates

Full Bogoliubov hamiltonian, but stiff condensates

pair production only in Bogoliubov hamiltonian, but full GP evolution of condensates

A slice in k-space in a different plane that includes the condensates, collision direction along horizontal axis

Most basic model: pair production only in Bogoliubov hamiltonian, and stiff condensates