The effect of atmospheric turbulence on entangled orbital angular momentum states

Abstract

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.

To appear in New Journal of Physics

References in corpus (5)

• Entanglement of Orbital Angular Momentum States of Photons
• Management of the Angular Momentum of Light: Preparation of Photons in Multidimensional Vector States of Angular
• Quantum cryptography with 3-state systems
• Quantum spiral bandwidth of entangled two-photon states
• Two-photon wave mechanics

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• Experimentally observed decay of higher-dimensional entanglement through turbulence
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