Abstract
Nonlinear optical devices are very useful for generating entanglement. One proposal for the generation of genuine tripartite entanglement [Phys. Rev. Lett. 120, 043601 (2018)PRLTAO0031-900710.1103/PhysRevLett.120.043601] is to use a third-order nonlinear optical interaction. Here, we investigate a generalization of this, where we consider the quantum nature of all modes; moreover, we also investigate quantum steering, which is a stronger and asymmetric non-local correlation. We show that the final state presents not only tripartite continuous variable entanglement but also tripartite steering.
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