Experimental demonstration of free-space decoy-state quantum key distribution over 144 km

T Schmitt-Manderbach; H Weier; M Furst; R Ursin; F Tiefenbacher; T Scheidl; J Perdigues; Z Sodnik; C Kurtsiefer; JG Rarity; A Zeilinger; H Weinfurter

doi:10.1103/PhysRevLett.98.010504

Experimental demonstration of free-space decoy-state quantum key distribution over 144 km

T Schmitt-Manderbach, H Weier, M Furst, R Ursin, F Tiefenbacher, T Scheidl, J Perdigues, Z Sodnik, C Kurtsiefer, JG Rarity, A Zeilinger, H Weinfurter

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Abstract

We report on the experimental implementation of a Bennett-Brassard 1984 (BB84) protocol type quantum key distribution over a 144 km free-space link using weak coherent laser pulses. Optimization of the link transmission was achieved with bidirectional active telescope tracking, and the security was ensured by employing decoy-state analysis. This enabled us to distribute a secure key at a rate of 12.8 bit/s at an attenuation of about 35 dB. Utilizing a simple transmitter setup and an optical ground station capable of tracking a spacecraft in low earth orbit, this outdoor experiment demonstrates the feasibility of global key distribution via satellites

Translated title of the contribution	Experimental demonstration of free-space decoy-state quantum key distribution over 144 km
Original language	English
Pages (from-to)	010504/1 - 010504/4
Number of pages	4
Journal	Physical Review Letters
Volume	98 (1)
DOIs	https://doi.org/10.1103/PhysRevLett.98.010504
Publication status	Published - Jan 2007

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Publisher: APS

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QETLabs
Photonics and Quantum

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Schmitt-Manderbach, T., Weier, H., Furst, M., Ursin, R., Tiefenbacher, F., Scheidl, T., Perdigues, J., Sodnik, Z., Kurtsiefer, C., Rarity, JG., Zeilinger, A., & Weinfurter, H. (2007). Experimental demonstration of free-space decoy-state quantum key distribution over 144 km. Physical Review Letters, 98 (1), 010504/1 - 010504/4. https://doi.org/10.1103/PhysRevLett.98.010504

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title = "Experimental demonstration of free-space decoy-state quantum key distribution over 144 km",

abstract = "We report on the experimental implementation of a Bennett-Brassard 1984 (BB84) protocol type quantum key distribution over a 144 km free-space link using weak coherent laser pulses. Optimization of the link transmission was achieved with bidirectional active telescope tracking, and the security was ensured by employing decoy-state analysis. This enabled us to distribute a secure key at a rate of 12.8 bit/s at an attenuation of about 35 dB. Utilizing a simple transmitter setup and an optical ground station capable of tracking a spacecraft in low earth orbit, this outdoor experiment demonstrates the feasibility of global key distribution via satellites",

author = "T Schmitt-Manderbach and H Weier and M Furst and R Ursin and F Tiefenbacher and T Scheidl and J Perdigues and Z Sodnik and C Kurtsiefer and JG Rarity and A Zeilinger and H Weinfurter",

note = "Publisher: APS",

year = "2007",

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doi = "10.1103/PhysRevLett.98.010504",

language = "English",

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Schmitt-Manderbach, T, Weier, H, Furst, M, Ursin, R, Tiefenbacher, F, Scheidl, T, Perdigues, J, Sodnik, Z, Kurtsiefer, C, Rarity, JG, Zeilinger, A & Weinfurter, H 2007, 'Experimental demonstration of free-space decoy-state quantum key distribution over 144 km', Physical Review Letters, vol. 98 (1), pp. 010504/1 - 010504/4. https://doi.org/10.1103/PhysRevLett.98.010504

TY - JOUR

T1 - Experimental demonstration of free-space decoy-state quantum key distribution over 144 km

AU - Schmitt-Manderbach, T

AU - Weier, H

AU - Furst, M

AU - Ursin, R

AU - Tiefenbacher, F

AU - Scheidl, T

AU - Perdigues, J

AU - Sodnik, Z

AU - Kurtsiefer, C

AU - Rarity, JG

AU - Zeilinger, A

AU - Weinfurter, H

N1 - Publisher: APS

PY - 2007/1

Y1 - 2007/1

N2 - We report on the experimental implementation of a Bennett-Brassard 1984 (BB84) protocol type quantum key distribution over a 144 km free-space link using weak coherent laser pulses. Optimization of the link transmission was achieved with bidirectional active telescope tracking, and the security was ensured by employing decoy-state analysis. This enabled us to distribute a secure key at a rate of 12.8 bit/s at an attenuation of about 35 dB. Utilizing a simple transmitter setup and an optical ground station capable of tracking a spacecraft in low earth orbit, this outdoor experiment demonstrates the feasibility of global key distribution via satellites

AB - We report on the experimental implementation of a Bennett-Brassard 1984 (BB84) protocol type quantum key distribution over a 144 km free-space link using weak coherent laser pulses. Optimization of the link transmission was achieved with bidirectional active telescope tracking, and the security was ensured by employing decoy-state analysis. This enabled us to distribute a secure key at a rate of 12.8 bit/s at an attenuation of about 35 dB. Utilizing a simple transmitter setup and an optical ground station capable of tracking a spacecraft in low earth orbit, this outdoor experiment demonstrates the feasibility of global key distribution via satellites

U2 - 10.1103/PhysRevLett.98.010504

DO - 10.1103/PhysRevLett.98.010504

M3 - Article (Academic Journal)

C2 - 17358463

SN - 1079-7114

VL - 98 (1)

SP - 010504/1 - 010504/4

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Experimental demonstration of free-space decoy-state quantum key distribution over 144 km

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