Symmetry-broken momentum distributions induced by matter-wave diffraction during time-of-flight expansion of ultracold atoms
Symmetry-broken momentum distributions induced by matter-wave diffraction during time-of-flight expansion of ultracold atoms
We study several effects which lead to symmetry-broken momentum distributions of quantum gases released from optical lattices. In particular, we demonstrate that the interaction within the first milliseconds of the time-of-flight expansion can strongly alter the measurement of the initial atomic momentum distribution. For bosonic mixtures in state-dependent lattices, interspecies …