  We demonstrate the emission of correlated atom jets from a matter-wave
soliton in a quasi-one-dimensional optical trap. We characterize the dependence
of jet properties on the frequency, amplitude and length of the modulation, and
qualitatively reproduce the trends in the mean-field picture with a
one-dimensional time-dependent Gross-Pitaevskii equation simulation. High-order
jets are observed for sufficiently long pulses. A double-pulse modulation
sequence produces consecutive jets, and a multi-pulse sequence may lead to
irregular 3D jets at a finite angle to the direction of the channel. In the
limit of vanishing high-order jets beyond-mean-field number correlations of jet
pairs are demonstrated, implying possible number squeezing.
