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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Detalles Bibliográficos
Autor principal: Larotonda, Miguel Antonio
Publicado: 2017
Materias:
Decoy State
Open Air Communications
Quantum Key Distribution
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00303917_v50_n2_p187_Magnoni
http://hdl.handle.net/20.500.12110/paper_00303917_v50_n2_p187_Magnoni
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00303917_v50_n2_p187_Magnoni
record_format dspace
spelling paper:paper_00303917_v50_n2_p187_Magnoni2023-06-08T14:55:48Z Free space decoy-state quantum key distribution implementation Larotonda, Miguel Antonio 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. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00303917_v50_n2_p187_Magnoni 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
Larotonda, Miguel Antonio
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.
author Larotonda, Miguel Antonio
author_facet Larotonda, Miguel Antonio
author_sort Larotonda, Miguel Antonio
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
publishDate 2017
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00303917_v50_n2_p187_Magnoni
http://hdl.handle.net/20.500.12110/paper_00303917_v50_n2_p187_Magnoni
work_keys_str_mv AT larotondamiguelantonio freespacedecoystatequantumkeydistributionimplementation
_version_ 1768546433739259904

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