Impact of Turbulence in Long Range Quantum and Classical Communications

Author(s): I. Capraro, A. Tomaello, A. Dall'Arche, F. Gerlin, R. Ursin, G. Vallone, P. Villoresi

Journal: Physical Review Letters

Volume: 109

Page(s): 200502

Year: 2012

DOI Number: 10.1103/PhysRevLett.109.200502

Link: Link to publication

Abstract:

The study of the free-space distribution of quantum correlations is necessary for any future application

of quantum and classical communication aiming to connect two remote locations. Here we study the

propagation of a coherent laser beam over 143 km (between Tenerife and La Palma Islands of the Canary

archipelagos). By attenuating the beam we also studied the propagation at the single photon level.

We investigated the statistic of arrival of the incoming photons and the scintillation of the beam. From the

analysis of the data, we propose the exploitation of turbulence to improve the signal to noise ratio of

the signal.

Note: http://arxiv.org/abs/1207.6931

File: Link to PDF

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