2013 Fiscal Year Final Research Report
Quantum information technology based on wavelength conversion of a photon
| Project/Area Number |
23684035
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Atomic/Molecular/Quantum electronics
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
KOASHI Masato 東京大学, 光量子科学研究センター, 教授 (90322099)
IMOTO Nobuyuki 大阪大学, 大学院基礎工学研究科, 教授 (00313479)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 量子エレクトロニクス / 量子光学 / 量子情報 / 波長変換 |
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| Research Abstract |
Quantum information processing employing diverse media such as photons, atoms and trapped ions have been actively studied over the past two decade. Photons play a significant role as a currier of quantum information over a long distance. On the other hand, other matter systems are considered to be used as storage and manipulation of quantum information at a specific location. When we look at a quantum repeater, entanglement between matters and photons is considered as an elemental resource for the long distance quantum communication. Creations of the entanglement between matters and photons have been demonstrated, but it is limited for the visible wavelength of the photons that is not suitable for a long distance fiber telecommunication. In this project, we have demonstrated a wavelength converter while preserving the quantum state from visible to telecommunication wavelength for efficient transmission of the quantum states of photons.
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[Journal Article] High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors2013
Author(s)
Rikizo Ikuta, Hiroshi Kato, Yoshiaki Kusaka, Shigehito Miki, Taro Yamashita, Hirotaka Terai, Mikio Fujiwara, Takashi Yamamoto, Masato Koashi, Masahide Sasaki, Zhen Wang, Nobuyuki Imoto
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Journal Title
Phys. Rev. A
Volume: 87
Pages: 010301(R)
Peer Reviewed
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[Journal Article] Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation2013
Author(s)
Rikizo Ikuta, Toshiki Kobayashi, Hiroshi Kato, Shigehito Miki, Taro Yamashita, Hirotaka Terai, Mikio Fujiwara, Takashi Yamamoto, Masato Koashi, Masahide Sasaki, Zhen Wang, Nobuyuki Imoto
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Journal Title
Phys. Rev. A
Volume: 88
Pages: 042317
Peer Reviewed
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[Journal Article] Observation of two output light pulses from a partial wavelength converter preserving phase of an input light at a single-photon level2013
Author(s)
Rikizo Ikuta, Toshiki Kobayashi, Hiroshi Kato, Shigehito Miki, Taro Yamashita, Hirotaka Terai, Mikio Fujiwara, Takashi Yamamoto, Masato Koashi, Masahide Sasaki, Zhen Wang, Nobuyuki Imoto
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Journal Title
Opt. Express
Volume: 21
Pages: 27865
Peer Reviewed
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[Presentation] A photonic quantum interface for an optical fiber based quantum communication2013
Author(s)
Takashi Yamamoto, R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, M. Koashi, M. Sasaki, Z. Wang, N. Imoto
Organizer
20th Central European Workshop on Quantum Optics
Place of Presentation
KTH, Stockholm, Sweden
Year and Date
2013-06-17
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