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Journal Article

Free-space quantum links under diverse weather conditions

MPS-Authors
/persons/resource/persons216205

Guenthner,  K.
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons216334

Thurn,  A.
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201013

Bayraktar,  O.
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201126

Marquardt,  Ch.
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Vasylyev, D., Semenov, A. A., Vogel, W., Guenthner, K., Thurn, A., Bayraktar, O., et al. (2017). Free-space quantum links under diverse weather conditions. PHYSICAL REVIEW A, 96(4): 043856. doi:10.1103/PhysRevA.96.043856.


Cite as: https://hdl.handle.net/21.11116/0000-0000-85A8-C
Abstract
Free-space optical communication links are promising channels for establishing secure quantum communication. Here we study the transmission of nonclassical light through a turbulent atmospheric link under diverse weather conditions, including rain or haze. To include these effects, the theory of light transmission through atmospheric links in the elliptic-beam approximation presented by Vasylyev et al. [D. Vasylyev et al., Phys. Rev. Lett. 117, 090501 (2016)] is further generalized. It is demonstrated, with good agreement between theory and experiment, that low-intensity rain merely contributes additional deterministic losses, whereas haze also introduces additional beam deformations of the transmitted light. Based on these results, we study theoretically the transmission of quadrature squeezing and Gaussian entanglement under these weather conditions.