Entanglement-based quantum communication over 144 km
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Quantum key distribution with photons has advanced beyond first few-meter laboratory demonstrations to free-space or fiber-based distributions over hundred kilometers, and is rapidly commercialized into real-life inter-city cryptographic networks.
“Thanks to this property, quantum key distribution with photons has now went long beyond first few-meter laboratory demonstrations, to free-space or fiber-based distributions over hundred kilometers (see e.g.Ursin et al, 2007;Rosenberg et at., 2007), and is rapidly commercialized into real life inter-city cryptographic networks.”
From Multiphoton entanglement and interferometry (2012) · cites this paper as Ursin et al, 2007
Entanglement has been distributed over long distances: over 10.5 km free space in Hefei by Peng et al. (2005), and in an asymmetric arrangement one photon was sent over 144 km between the islands of La Palma and Teneriffe by Ursin et al. (2007).
“For example, over 10.5 km free space in Hefei by Peng et al. (2005), or in an asymmetric arrangement, in the case of which one photon is sent over 144 km between the islands of La Palma and Teneriffe (Ursin et al 2007).”
From Multiphoton entanglement and interferometry (2012) · cites this paper as Ursin et al 2007
Free-space distribution of entangled photon pairs over 10 km was achieved in 2005, and over 144 km more recently.
“In section VI.E we discuss steps on the road toward satellite-based quantum communication and its first step, i.e., free-space distribution of entangled photon pairs over a distance of 10 km achieved in 2005 (Resch et al., 2005;Peng et al., 2005) and, more recently, over 144 km (Ursin et al., 2007;Fedrizzi et al., 2009).”
From Multiphoton entanglement and interferometry (2012) · cites this paper as Ursin et al., 2007
The entanglement of the received two-photon states was confirmed by violating the CHSH inequality by more than 5 standard deviations.
“The entanglement of the received two-photon states was confirmed by violating the CHSH inequality by more than 5 standard deviations.”
From Multiphoton entanglement and interferometry (2012) · cites this paper as Ursin et al., 2007
A 144-km free-space link was built between two Canary Islands and used for distribution of one photon of an entangled pair (Ursin et al., 2007), and later, both photons (Fedrizzi et al., 2009).
“More recently, a 144-km free-space link was built between two Canary Islands and used for distribution of one photon of an entangled pair (Ursin et al., 2007), and later, both photons (Fedrizzi et al., 2009).”
From Multiphoton entanglement and interferometry (2012) · cites this paper as Ursin et al., 2007
The final photon states were found to preserve excellent, noise-limited fidelity, even though they experienced extreme attenuation due to mainly turbulent atmospheric effects.
“The final photon states were found to preserve excellent, noise-limited fidelity, even though they experienced extreme attenuation due to mainly turbulent atmospheric effects.”
From Multiphoton entanglement and interferometry (2012) · cites this paper as Ursin et al., 2007
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- Authors
- Ursin, R., Tiefenbacher, F., Schmitt-Manderbach, T., Weier, H., Scheidl, T., Lindenthal, M., Blauensteiner, B., Jennewein, T., Perdigues, J., Trojek, P., Ömer, B., Fürst, M., Meyenburg, M., Rarity, J., Sodnik, Z., Barbieri, C., Weinfurter, H., & Zeilinger, A.
- Affiliations
- University of Vienna (AT)
- Max Planck Society (DE)
- Austrian Academy of Sciences (AT)
- AIT Austrian Institute of Technology GmbH (AT)
- Ludwig-Maximilians-Universität München (DE)
- University of Bristol (GB)
- European Space Agency (FR)
- University of Padua (IT)
- Corresponding author
- Ursin, R.
- Zeilinger, A.
- ORCID
- Venue
- Nature Physics
- Published
- 2007-06-03
- Volume
- 3
- Issue
- 7
- Pages
- 481-486
- ISSN
- 1745-2473 (ISSN-L)
- 1745-2481
- OpenAlex
- W2063519529
- Cited by
- 1,210
- References
- 8
- Citations by year
- 2026: 43 · 2025: 70 · 2024: 62 · 2023: 126 · 2022: 73 · 2021: 58 · 2020: 71 · 2019: 57 · 2018: 60 · 2017: 58 · 2016: 77 · 2015: 58 · 2014: 66 · 2013: 67 · 2012: 66
- FWCI
- 58.01
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature Physics (publishedVersion)
- Bristol Research (University of Bristol) (publishedVersion)
- Max Planck Institute for Plasma Physics (submittedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion)
- Padua Research Archive (University of Padova) (submittedVersion)
- Funders
- Österreichischen Akademie der Wissenschaften
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Optical Wireless Communication Technologies
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum optics and atomic interactions
- Keywords
- entanglement-based quantum key distribution, free-space quantum communication, optical ground station, satellite-based quantum communication, quantum cryptography, quantum teleportation
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