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arXiv · 1302.2438

Improved quantum correlations in second harmonic generation with a squeezed pump

E. MArcellina·J. F. Corney·M. K. Olsen
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Abstract

We investigate the effects of a squeezed pump on the quantum properties and conversion efficiency of the light produced in single-pass second harmonic generation. Using stochastic integration of the two-mode equations of motion in the positive-P representation, we find that larger violations of continuous-variable harmonic entanglement criteria are available for lesser effective interaction strengths than with a coherent pump. This enhancement of the quantum properties also applies to violations of the Reid-Drummond inequalities used to demonstrate a harmonic version of the Einstein-Podolsky-Rosen paradox. We find that the conversion efficiency is largely unchanged except for very low pump intensities and high levels of squeezing.

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E. MArcellina, J. F. Corney, M. K. Olsen. 2013-02-11. Improved quantum correlations in second harmonic generation with a squeezed pump. https://doi.org/10.1016/j.optcom.2013.06.063

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