  We present momentum resolved covariance measurements of entangled
electronic-nuclear wave packets created and probed with octave spanning
phaselocked ultrafast pulses. We launch vibrational wave packets on multiple
electronic states via multi-photon absorption, and probe these wave packets via
strong field double ionization using a second phaselocked pulse. Momentum
resolved covariance mapping of the fragment ions highlights the nuclear motion,
while measurements of the yield as a function of the relative phase between
pump and probe pulses highlight the electronic coherence. The combined
measurements allow us to directly visualize the entanglement between the
electronic and nuclear degrees of freedom and follow the evolution of the
complete wavefunction.
