The effect of atmospheric turbulence on entangled orbital angular momentum states

Details The effect of atmospheric turbulence on entangled orbital angular momentum states The effect of atmospheric turbulence on entangled orbital angular momentum states

2007-03-22

arxiv.org/abs/quant-ph/0703205v1

Physics

Quantum Physics

To appear in New Journal of Physics

Scientific paper

10.1088/1367-2630/9/4/094

We analyze the effect of atmospheric Kolmogorov turbulence on entangled orbital angular momentum states generated by parametric down-conversion. We calculate joint and signal photon detection probabilities and obtain numerically their dependence on the mode-width-to-Fried-parameter ratio. We demonstrate that entangled photons are less robust to the effects of Kolmogorov turbulence compared to single photons. In contrast, signal photons are more robust than single photons in the lowest-order mode. We also obtain numerically a scaling relation between the value of the mode-width-to-Fried-parameter ratio for which the joint detection probabilities is a maximum and the momentum mismatch between signal and idler photons after propagation through the medium.

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