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Passively stable di...
Passively stable distribution of polarisation entanglement over 192 km of deployed optical fibre
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- Wengerowsky, Soeren (author)
- Austrian Acad Sci, Inst Quantum Opt & Quantum Informat Vienna IQOQI, Boltzmanngasse 3, A-1090 Vienna, Austria.;Vienna Ctr Quantum Sci & Technol VCQ, Boltzmanngasse 3, A-1090 Vienna, Austria.
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- Joshi, Siddarth Koduru (author)
- Univ Bristol, HH Wills Phys Lab, Quantum Engn Technol Labs, Merchant Venturers Bldg,Woodland Rd, Bristol BS8 1UB, Avon, England.;Univ Bristol, Dept Elect & Elect Engn, Merchant Venturers Bldg,Woodland Rd, Bristol BS8 1UB, Avon, England.
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- Steinlechner, Fabian (author)
- Fraunhofer Inst Appl Opt & Precis Engn IOF Jena, Albert Einstein Str 7, D-07745 Jena, Germany.;Friedrich Schiller Univ Jena, Abbe Ctr Photon, Albert Einstein Str 6, D-07745 Jena, Germany.
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- Zichi, Julien (author)
- KTH,Tillämpad materialfysik,Kvant- och biofotonik
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- Liu, Bo (author)
- Austrian Acad Sci, Inst Quantum Opt & Quantum Informat Vienna IQOQI, Boltzmanngasse 3, A-1090 Vienna, Austria.;Vienna Ctr Quantum Sci & Technol VCQ, Boltzmanngasse 3, A-1090 Vienna, Austria.;NUDT, Coll Adv Interdisciplinary Studies, Changsha 410073, Peoples R China.
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- Scheidl, Thomas (author)
- Austrian Acad Sci, Inst Quantum Opt & Quantum Informat Vienna IQOQI, Boltzmanngasse 3, A-1090 Vienna, Austria.;Univ Vienna, Fac Phys, Quantum Opt Quantum Nanophys & Quantum Informat, Boltzmanngasse 5, A-1090 Vienna, Austria.
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- Dobrovolskiy, Sergiy M. (author)
- Single Quantum BV, Molengraaffsingel 10, NL-2629 JD Delft, Netherlands.
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- van der Molen, Rene (author)
- Single Quantum BV, Molengraaffsingel 10, NL-2629 JD Delft, Netherlands.
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- Los, Johannes W. N. (author)
- Single Quantum BV, Molengraaffsingel 10, NL-2629 JD Delft, Netherlands.
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- Zwiller, Val (author)
- Royal Inst Technol KTH, Dept Appl Phys, SE-10691 Stockholm, Sweden.;Single Quantum BV, Molengraaffsingel 10, NL-2629 JD Delft, Netherlands.
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- Versteegh, Marijn A. M. (author)
- KTH,Tillämpad materialfysik,Kvant- och biofotonik
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- Mura, Alberto (author)
- Ist Nazl Ric Metrol INRIM, Str Cacce 91, I-10135 Turin, Italy.
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- Calonico, Davide (author)
- Ist Nazl Ric Metrol INRIM, Str Cacce 91, I-10135 Turin, Italy.
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- Inguscio, Massimo (author)
- European Lab Nonlinear Spect LENS, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy.;Campus Biomed Univ Rome, Dept Engn, Via Alvaro del Portillo 21, I-00128 Rome, Italy.;CNR, Piazzale Aldo Moro 7, I-00185 Rome, Italy.
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- Zeilinger, Anton (author)
- Austrian Acad Sci, Inst Quantum Opt & Quantum Informat Vienna IQOQI, Boltzmanngasse 3, A-1090 Vienna, Austria.;Univ Vienna, Fac Phys, Quantum Opt Quantum Nanophys & Quantum Informat, Boltzmanngasse 5, A-1090 Vienna, Austria.
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- Xuereb, Andre (author)
- Univ Malta, Dept Phys, MSD-2080 Msida, Malta.
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- Ursin, Rupert (author)
- Austrian Acad Sci, Inst Quantum Opt & Quantum Informat Vienna IQOQI, Boltzmanngasse 3, A-1090 Vienna, Austria.;Vienna Ctr Quantum Sci & Technol VCQ, Boltzmanngasse 3, A-1090 Vienna, Austria.
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Austrian Acad Sci, Inst Quantum Opt & Quantum Informat Vienna IQOQI, Boltzmanngasse 3, A-1090 Vienna, Austria;Vienna Ctr Quantum Sci & Technol VCQ, Boltzmanngasse 3, A-1090 Vienna, Austria. Univ Bristol, HH Wills Phys Lab, Quantum Engn Technol Labs, Merchant Venturers Bldg,Woodland Rd, Bristol BS8 1UB, Avon, England.;Univ Bristol, Dept Elect & Elect Engn, Merchant Venturers Bldg,Woodland Rd, Bristol BS8 1UB, Avon, England. (creator_code:org_t)
- 2020-01-10
- 2020
- English.
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In: NPJ QUANTUM INFORMATION. - : NATURE PUBLISHING GROUP. - 2056-6387. ; 6:1
- Related links:
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https://www.nature.c...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Quantum key distribution (QKD) based on entangled photon pairs holds the potential for repeater-based quantum networks connecting clients over long distance. We demonstrate long-distance entanglement distribution by means of polarisation-entangled photon pairs through two successive deployed 96 km-long telecommunications fibres in the same submarine cable. One photon of each pair was detected directly after the source, while the other travelled the fibre cable in both directions for a total distance of 192 km and attenuation of 48 dB. The observed two-photon Bell state exhibited a fidelity 85 +/- 2% and was stable over several hours. We employed neither active stabilisation of the quantum state nor chromatic dispersion compensation for the fibre.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Wengerowsky, Soe ...
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Joshi, Siddarth ...
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Steinlechner, Fa ...
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Zichi, Julien
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Liu, Bo
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Scheidl, Thomas
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show more...
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Dobrovolskiy, Se ...
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van der Molen, R ...
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Los, Johannes W. ...
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Zwiller, Val
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Versteegh, Marij ...
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Mura, Alberto
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Calonico, Davide
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Inguscio, Massim ...
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Zeilinger, Anton
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Xuereb, Andre
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Ursin, Rupert
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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NPJ QUANTUM INFO ...
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Royal Institute of Technology