Presentation 2008-02-29
QUANTUM INFORMATION AND QUANTUM PHYSICS IN SPACE
Rupert URSIN, Morio TOYOSHIMA,
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Abstract(in English) Quantum entanglement is at the heart of quantum physics. At the same time it is the basis for novel quantum communication schemes, such as quantum cryptography even over global distances. Bringing quantum entanglement to the space environment will open a new range of fundamental physics experiments, and will provide unique opportunities for quantum communication applications. We proposed tests of quantum communication in space, whereby an entangled photon Source is placed onboard the ISS, and two entangled photons are transmitted via a simultaneous down link and received at two distant ground stations. Furthermore, performing a series of consecutive single down links with separate ground stations will enable a test of establishing quantum cryptography even on a global scale. This so called "Space-QUEST" proposal was submitted within ESA's OA-2004 and was rated as 'outstanding' because of both, a novel and imaginative scientific content and for technological applications of quantum cryptography respectively. NICT and the Austrian Academy of Science are collaborating to perform a series of proof-of-principle experiments in order to investigate possible influences of the atmosphere on the polarization of light transmitted through.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Quantum Mechanics / Quantum communication / Quantum Key distribution / Entanglement
Paper # SAT2007-69
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Conference Information
Committee SAT
Conference Date 2008/2/21(1days)
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Registration To Satellite Telecommunications (SAT)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) QUANTUM INFORMATION AND QUANTUM PHYSICS IN SPACE
Sub Title (in English)
Keyword(1) Quantum Mechanics
Keyword(2) Quantum communication
Keyword(3) Quantum Key distribution
Keyword(4) Entanglement
1st Author's Name Rupert URSIN
1st Author's Affiliation Faculty of Physics, University of Vienna()
2nd Author's Name Morio TOYOSHIMA
2nd Author's Affiliation National Institute of Information and Communications Technogy (NICT)
Date 2008-02-29
Paper # SAT2007-69
Volume (vol) vol.107
Number (no) 497
Page pp.pp.-
#Pages 3
Date of Issue