The influence of the interaction between quasiparticles on parametric resonance in Bose-Einstein quasicondensates
Abstract
We perform a simulation of the experiment [1] where the temporal modification of the effective one dimensional interaction constant was used to create pairs of atoms with opposite velocities. The simulations clearly demonstrate huge impact of interaction between quasiparticles due to finite temperature on the pair production process, explaining relatively small atom pair production and the absence of the number squeezing in the experiment.
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