  We propose to produce five-partite entanglement via cascaded four-wave mixing
in a high-Q microresonator that may become a key to future one-way quantum
computation on chip. A theoretical model is presented for the underlying
continuous-variable entanglement among the generated comb modes that is
expansible to more complicated scenarios. We analyze the entanglement condition
when the van Loock and Furusawa criteria are violated, and discuss the device
parameters for potential experimental realization that may be utilized to build
an integrated compact five-partite entanglement generator. The proposed
approach exhibits great potential for future large-scale integrated full
optical quantum computation on chip.
