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Femtosecond (fs)-resolved simultaneous measurements of charge and spindynamics reveal the coexistence of two different quasi-particle excitations incolossal magneto-resistive (CMR) manganites, with {\em fs} and {\em ps}relaxation times respectively. Their populations reverse size above a {\emphotoexcitation-intensity-threshold} coinciding with a "sudden"antiferro-to-ferromagnetic switching during $<$100 fs laser pulses. We presentevidence that fast, metallic, mobile quasi--electrons dressed by {\em quantumspin fluctuations} coexist with slow, localized, polaronic charge carriers innon-equilibrium phases. This may be central to CMR transition and leads to alaser-driven charge reorganization simultaneously with quantum fs magnetism viaan emergent quantum-spin/charge/lattice transient coupling.

Correlating Quasi-Electron Relaxation with Quantum Femtosecond Magnetism in the Order Parameter Dynamics of Insulating Manganites