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Online ISSN:1349-8606 |
| Progress in Informatics |
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| No.1 March 2005 |
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| Page 5-37 |
PDF(7,664KB) | References |
| doi:10.2201/NiiPi.2005.1.2 |
| Single photons for quantum information systems |
| Yoshihisa Yamamoto1, Charles Santori2, Glenn Solomon3, Jelena Vuckovic4, David Fattal5, Edo Waks6, Eleni Diamanti7 |
1 National Institute of Informatics
1, 2, 3, 4, 5, 6, 7 E.L. Ginzton Laboratory, Stanford University
1, 2, 3, 4, 5, 6, 7 Quantum Entanglement Project, SORST, JST
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(Received: December 6, 2004)
(Revised: January 29, 2005)
(Accepted: January 31, 2005)
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Abstract:
This paper reviews the current state of single-photon sources based on the semiconductor quantum dots that will play a central role in future quantum information systems. By optically pumping a system consisting of a semiconductor single quantum dot confined in a monolithic microcavity, it is possible to produce a single-photon pulse stream at the Fourier transform limit with high efficiency and a high repetition rate. This technique is not only useful for BB84 quantum cryptography using single photons, but will also find applications in other quantum information systems such as BBM92 quantum cryptography using entangled photon pairs, quantum teleportation, quantum repeaters, and linear optical quantum computers.
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Keywords:
single-photon source, quantum dot, microcavity, Fourier transform limit, EPR-Bell state, two-photon interference, quantum cryptography, quantum teleportation, quantum repeater, quantum computation
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| PDF(7,664KB) | References |
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