Free space decoy-state quantum key distribution implementation
In this work we introduce a complete Quantum Key Distribution device that implements a decoy-state protocol [1]. Qubits are coded in the polarization state of weak optical pulses, produced by infrared LEDs [2]. The link between Transmission (Alice) and Reception (Bob) stages is open air, which is th...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00303917_v50_n2_p187_Magnoni |
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todo:paper_00303917_v50_n2_p187_Magnoni2023-10-03T14:39:56Z Free space decoy-state quantum key distribution implementation Magnoni, A.G. Grande, I.H.L. Larotonda, M.A. Decoy State Open Air Communications Quantum Key Distribution In this work we introduce a complete Quantum Key Distribution device that implements a decoy-state protocol [1]. Qubits are coded in the polarization state of weak optical pulses, produced by infrared LEDs [2]. The link between Transmission (Alice) and Reception (Bob) stages is open air, which is the preferred channel to eventually through low-orbit satellites establish quantum communications. Both terminals are placed on different rooms, separated by approximately 8 meters. In order to compensate misalignments produced by small mechanic displacements or atmospheric thermal gradients, the system implements a closed-loop for automatic alignment based on a counter-propagating laser, a servo-actuated mirror and a CMOS image sensor. The apparatus runs in an autonomous way, and in the above described conditions it is able to generate raw cryptographic key at a rate of 185 bits/s, with a QBER of 6.15%. © Sociedad Española de Óptica. Fil:Larotonda, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00303917_v50_n2_p187_Magnoni |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Decoy State Open Air Communications Quantum Key Distribution |
| spellingShingle |
Decoy State Open Air Communications Quantum Key Distribution Magnoni, A.G. Grande, I.H.L. Larotonda, M.A. Free space decoy-state quantum key distribution implementation |
| topic_facet |
Decoy State Open Air Communications Quantum Key Distribution |
| description |
In this work we introduce a complete Quantum Key Distribution device that implements a decoy-state protocol [1]. Qubits are coded in the polarization state of weak optical pulses, produced by infrared LEDs [2]. The link between Transmission (Alice) and Reception (Bob) stages is open air, which is the preferred channel to eventually through low-orbit satellites establish quantum communications. Both terminals are placed on different rooms, separated by approximately 8 meters. In order to compensate misalignments produced by small mechanic displacements or atmospheric thermal gradients, the system implements a closed-loop for automatic alignment based on a counter-propagating laser, a servo-actuated mirror and a CMOS image sensor. The apparatus runs in an autonomous way, and in the above described conditions it is able to generate raw cryptographic key at a rate of 185 bits/s, with a QBER of 6.15%. © Sociedad Española de Óptica. |
| format |
JOUR |
| author |
Magnoni, A.G. Grande, I.H.L. Larotonda, M.A. |
| author_facet |
Magnoni, A.G. Grande, I.H.L. Larotonda, M.A. |
| author_sort |
Magnoni, A.G. |
| title |
Free space decoy-state quantum key distribution implementation |
| title_short |
Free space decoy-state quantum key distribution implementation |
| title_full |
Free space decoy-state quantum key distribution implementation |
| title_fullStr |
Free space decoy-state quantum key distribution implementation |
| title_full_unstemmed |
Free space decoy-state quantum key distribution implementation |
| title_sort |
free space decoy-state quantum key distribution implementation |
| url |
http://hdl.handle.net/20.500.12110/paper_00303917_v50_n2_p187_Magnoni |
| work_keys_str_mv |
AT magnoniag freespacedecoystatequantumkeydistributionimplementation AT grandeihl freespacedecoystatequantumkeydistributionimplementation AT larotondama freespacedecoystatequantumkeydistributionimplementation |
| _version_ |
1807318736160423936 |