Generation and analysis of correlated pairs of photons on board a nanosatellite

Zhongkan Tang, Rakhitha Chandrasekara, Yue Chuan Tan, Cliff Cheng, Luo Sha, Goh Cher Hiang, Daniel K. L. Oi, Alexander Ling

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Satellites carrying sources of entangled photons could establish a global quantum network, enabling private encryption keys between any two points on Earth. Despite numerous proposals, demonstration of space-based quantum systems has been limited due to the cost of traditional satellites. We are using very small spacecraft to accelerate progress. We report the in-orbit operation of a photon pair source aboard a 1.65 kg nanosatellite and demonstrate pair generation and polarization correlation under space conditions. The in-orbit photon correlations exhibit a contrast of 97+/-2%, matching ground-based tests. This pathfinding mission overcomes the challenge of demonstrating in-orbit performance for the components of future entangled photon experiments. Ongoing operation establishes the in-orbit lifetime of these critical components. More generally, this demonstrates the ability for nanosatellites to enable faster progress in space-based research.
LanguageEnglish
Article number054022
Number of pages5
JournalPhysical Review Applied
Volume5
Issue number5
DOIs
Publication statusPublished - 31 May 2016

Fingerprint

nanosatellites
orbits
photons
proposals
spacecraft
costs
life (durability)
polarization

Keywords

  • quantum physics
  • space physics
  • photon pairs
  • global quantum networks
  • nanosatellites

Cite this

Tang, Z., Chandrasekara, R., Tan, Y. C., Cheng, C., Sha, L., Hiang, G. C., ... Ling, A. (2016). Generation and analysis of correlated pairs of photons on board a nanosatellite. Physical Review Applied, 5(5), [054022]. https://doi.org/10.1103/PhysRevApplied.5.054022
Tang, Zhongkan ; Chandrasekara, Rakhitha ; Tan, Yue Chuan ; Cheng, Cliff ; Sha, Luo ; Hiang, Goh Cher ; Oi, Daniel K. L. ; Ling, Alexander. / Generation and analysis of correlated pairs of photons on board a nanosatellite. In: Physical Review Applied. 2016 ; Vol. 5, No. 5.
@article{702d90ec822c4333beff880217c34bb0,
title = "Generation and analysis of correlated pairs of photons on board a nanosatellite",
abstract = "Satellites carrying sources of entangled photons could establish a global quantum network, enabling private encryption keys between any two points on Earth. Despite numerous proposals, demonstration of space-based quantum systems has been limited due to the cost of traditional satellites. We are using very small spacecraft to accelerate progress. We report the in-orbit operation of a photon pair source aboard a 1.65 kg nanosatellite and demonstrate pair generation and polarization correlation under space conditions. The in-orbit photon correlations exhibit a contrast of 97+/-2{\%}, matching ground-based tests. This pathfinding mission overcomes the challenge of demonstrating in-orbit performance for the components of future entangled photon experiments. Ongoing operation establishes the in-orbit lifetime of these critical components. More generally, this demonstrates the ability for nanosatellites to enable faster progress in space-based research.",
keywords = "quantum physics, space physics, photon pairs, global quantum networks, nanosatellites",
author = "Zhongkan Tang and Rakhitha Chandrasekara and Tan, {Yue Chuan} and Cliff Cheng and Luo Sha and Hiang, {Goh Cher} and Oi, {Daniel K. L.} and Alexander Ling",
year = "2016",
month = "5",
day = "31",
doi = "10.1103/PhysRevApplied.5.054022",
language = "English",
volume = "5",
journal = "Physical Review Applied",
issn = "2331-7019",
number = "5",

}

Tang, Z, Chandrasekara, R, Tan, YC, Cheng, C, Sha, L, Hiang, GC, Oi, DKL & Ling, A 2016, 'Generation and analysis of correlated pairs of photons on board a nanosatellite' Physical Review Applied, vol. 5, no. 5, 054022. https://doi.org/10.1103/PhysRevApplied.5.054022

Generation and analysis of correlated pairs of photons on board a nanosatellite. / Tang, Zhongkan; Chandrasekara, Rakhitha; Tan, Yue Chuan; Cheng, Cliff; Sha, Luo; Hiang, Goh Cher; Oi, Daniel K. L.; Ling, Alexander.

In: Physical Review Applied, Vol. 5, No. 5, 054022, 31.05.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Generation and analysis of correlated pairs of photons on board a nanosatellite

AU - Tang, Zhongkan

AU - Chandrasekara, Rakhitha

AU - Tan, Yue Chuan

AU - Cheng, Cliff

AU - Sha, Luo

AU - Hiang, Goh Cher

AU - Oi, Daniel K. L.

AU - Ling, Alexander

PY - 2016/5/31

Y1 - 2016/5/31

N2 - Satellites carrying sources of entangled photons could establish a global quantum network, enabling private encryption keys between any two points on Earth. Despite numerous proposals, demonstration of space-based quantum systems has been limited due to the cost of traditional satellites. We are using very small spacecraft to accelerate progress. We report the in-orbit operation of a photon pair source aboard a 1.65 kg nanosatellite and demonstrate pair generation and polarization correlation under space conditions. The in-orbit photon correlations exhibit a contrast of 97+/-2%, matching ground-based tests. This pathfinding mission overcomes the challenge of demonstrating in-orbit performance for the components of future entangled photon experiments. Ongoing operation establishes the in-orbit lifetime of these critical components. More generally, this demonstrates the ability for nanosatellites to enable faster progress in space-based research.

AB - Satellites carrying sources of entangled photons could establish a global quantum network, enabling private encryption keys between any two points on Earth. Despite numerous proposals, demonstration of space-based quantum systems has been limited due to the cost of traditional satellites. We are using very small spacecraft to accelerate progress. We report the in-orbit operation of a photon pair source aboard a 1.65 kg nanosatellite and demonstrate pair generation and polarization correlation under space conditions. The in-orbit photon correlations exhibit a contrast of 97+/-2%, matching ground-based tests. This pathfinding mission overcomes the challenge of demonstrating in-orbit performance for the components of future entangled photon experiments. Ongoing operation establishes the in-orbit lifetime of these critical components. More generally, this demonstrates the ability for nanosatellites to enable faster progress in space-based research.

KW - quantum physics

KW - space physics

KW - photon pairs

KW - global quantum networks

KW - nanosatellites

UR - http://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.5.054022

U2 - 10.1103/PhysRevApplied.5.054022

DO - 10.1103/PhysRevApplied.5.054022

M3 - Article

VL - 5

JO - Physical Review Applied

T2 - Physical Review Applied

JF - Physical Review Applied

SN - 2331-7019

IS - 5

M1 - 054022

ER -