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Close to equilibrium, the underlying symmetries of a system determine itspossible universal behavior. Far from equilibrium, however, different universalphenomena associated with the existence of multiple non-thermal fixed pointscan be realized for given microscopic symmetries. Here, we study thisphenomenon using a quasi-one-dimensional spinor Bose-Einstein condensate. Weprepare two different initial conditions and observe two distinct universalscaling dynamics with different exponents. Measurements of the complex-valuedorder parameter with spatial resolution allow us to characterize thephase-amplitude excitations for the two scenarios. Our study provides newinsights into the phenomenon of universal dynamics far from equilibrium andopens a path towards mapping out the associated basins of non-thermal fixedpoints.

Observation of two non-thermal fixed points for the same microscopic symmetry