Multi-resonant spinor dynamics in a Bose-Einstein condensate
Abstract
We analyze the spinor dynamics of a Rb-87 F=2 condensate initially prepared in the mF=0 Zeeman sublevel. We show that this dynamics, characterized by the creation of correlated atomic pairs in mF=+/-1, presents an intriguing multi-resonant magnetic field dependence induced by the trap inhomogeneity. This dependence is directly linked to the most unstable Bogoliubov spin excitations of the initial mF = 0 condensate, showing that, in general, even a qualitative understanding of the pair creation efficiency in a spinor condensate requires a careful consideration of the confinement.
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