Extending the single-photon transmission distance is a basic requirement for the implementation of quantum communication on a global scale. In this work we report the single-photon exchange from a medium Earth orbit satellite (MEO) at more than 7000 km of slant distance to the ground station at the Matera Laser Ranging Observatory. The single-photon transmitter was realized by exploiting the corner cube retroreflectors mounted on the LAGEOS-2 satellite. Long duration of data collection is possible with such altitude, up to 43 min in a single passage. The mean number of photons per pulse (μsat) has been limited to 1 for 200 s, resulting in an average detection rate of 3.0 counts/s and a signal-to-noise ratio of 1.5. The feasibility of single-photon exchange from MEO satellites paves the way to tests of quantum mechanics in moving frames and to global quantum Information.

Experimental single-photon exchange along a space link of 7000 km / DEQUAL, DANIELE; VALLONE, GIUSEPPE; BACCO, DAVIDE; GAIARIN, SIMONE; Luceri, Vincenza; Bianco, Giuseppe; VILLORESI, PAOLO. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - STAMPA. - 93:(2016), pp. 010301.010301-1-010301.010301-5. [10.1103/PhysRevA.93.010301]

Experimental single-photon exchange along a space link of 7000 km

VALLONE, GIUSEPPE;BACCO, DAVIDE;GAIARIN, SIMONE;
2016

Abstract

Extending the single-photon transmission distance is a basic requirement for the implementation of quantum communication on a global scale. In this work we report the single-photon exchange from a medium Earth orbit satellite (MEO) at more than 7000 km of slant distance to the ground station at the Matera Laser Ranging Observatory. The single-photon transmitter was realized by exploiting the corner cube retroreflectors mounted on the LAGEOS-2 satellite. Long duration of data collection is possible with such altitude, up to 43 min in a single passage. The mean number of photons per pulse (μsat) has been limited to 1 for 200 s, resulting in an average detection rate of 3.0 counts/s and a signal-to-noise ratio of 1.5. The feasibility of single-photon exchange from MEO satellites paves the way to tests of quantum mechanics in moving frames and to global quantum Information.
93
010301-1
010301-5
DEQUAL, DANIELE; VALLONE, GIUSEPPE; BACCO, DAVIDE; GAIARIN, SIMONE; Luceri, Vincenza; Bianco, Giuseppe; VILLORESI, PAOLO
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2158/1286252
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