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Scientific Article
unige:36694 
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Feasibility study of free-space quantum key distribution in the mid-infrared |
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| Authors | ||
| Published in | Quantum Information and Computation. 2008, vol. 8, no. 1&2, p. 0001-0011 | |
| Abstract | We report on a feasibility study of a free-space Quantum Key Distribution setup operating at a mid-infrared wavelength. Alice sends polarization-coded pseudo-single photons from a Quantum Cascade Laser at 4.6 μm to Bob, who uses a nonlinear crystal and a Silicon Avalanche Photodiode to perform the detection via Sum Frequency Generation. Theoretical predictions, based on a proof-of-principle experiment, show that, under certain foggy atmospheric conditions, the proposed system is barely affected, whereas other systems operating at standard near-infrared wavelengths would simply not work at all. | |
| Keywords | Quantum Key Distribution — Mid-Infrared — Free-Space Optics — Frequency Up-Conversion | |
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| Citation (ISO format) | TEMPORAO, Guilherme et al. Feasibility study of free-space quantum key distribution in the mid-infrared. In: Quantum Information and Computation, 2008, vol. 8, n° 1&2, p. 0001-0011. https://archive-ouverte.unige.ch/unige:36694 |
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