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arXiv · 1706.05174

Entanglement properties of third harmonic generation via direct and cascaded parametric processes

M. K. Olsen
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Abstract

We compare the bipartite entanglement and EPR-steering properties of the two different schemes which produce third harmonic optical fields from an input field at the fundamental frequency. The first scheme uses second harmonic cascaded with sum-frequency generation while the second uses triply degenerate four-wave mixing, also known as direct third harmonic generation. We examine and compare the two schemes in both the travelling wave and intra-cavity configurations. We find that both schemes produce continuous-variable bipartite entanglement and EPR-steering. The direct scheme produces a greater degree of EPR-steering while the cascaded scheme allows for greater flexibility in having three available bipartitions.

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M. K. Olsen. 2017-06-16. Entanglement properties of third harmonic generation via direct and cascaded parametric processes. https://doi.org/10.1103/physreva.97.033820

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