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Paper Abstract and Keywords
Presentation 2013-05-17 14:15
Transfer and retrieval of telecom-wavelength picoseconds single-photon qubits to quantum dots
Kazumasa Suzuki, Koichiro Konichi (Keio Univ.), Kouichi Akahane (NICT), Junko Ishi-Hayase (Keio Univ.) LQE2013-10 Link to ES Tech. Rep. Archives: LQE2013-10
Abstract (in Japanese) (See Japanese page) 
(in English) We demonstrate the coherent transfer and retrieval of picosecound single-photon time-bin qubits to a quantum dot ensemble at a telecommunication wavelength using a photon-echo technique.The visibility of interfered photon-echo signals which determines the transfer/retrieval fidelity of time-bin qubits was estimated to be approximately 98 % for a 200-ps storage time.Moreover, we found that the retrieval fidelity is independent of storage time for at least 1 ns.Our result shows that a quantum dot ensemble which has large inhomogeneous broadening of optical transition of excitons in conjunction with a photon-echo technique is promising candidate for realizing the ultrabroadband (terahertz range) light-matter quantum interface which is operable in the telecommunication wavelength range.
Keyword (in Japanese) (See Japanese page) 
(in English) Quantum Dot / Photon Echo / Quantum Interface / Quantum Information Technology / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 49, LQE2013-10, pp. 45-48, May 2013.
Paper # LQE2013-10 
Date of Issue 2013-05-10 (LQE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF LQE2013-10 Link to ES Tech. Rep. Archives: LQE2013-10

Conference Information
Committee LQE LSJ  
Conference Date 2013-05-17 - 2013-05-17 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To LQE 
Conference Code 2013-05-LQE-LSJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Transfer and retrieval of telecom-wavelength picoseconds single-photon qubits to quantum dots 
Sub Title (in English)  
Keyword(1) Quantum Dot  
Keyword(2) Photon Echo  
Keyword(3) Quantum Interface  
Keyword(4) Quantum Information Technology  
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1st Author's Name Kazumasa Suzuki  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Koichiro Konichi  
2nd Author's Affiliation Keio University (Keio Univ.)
3rd Author's Name Kouichi Akahane  
3rd Author's Affiliation National Institute of Information and Communications Technology (NICT)
4th Author's Name Junko Ishi-Hayase  
4th Author's Affiliation Keio University (Keio Univ.)
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Speaker
Date Time 2013-05-17 14:15:00 
Presentation Time 25 
Registration for LQE 
Paper # IEICE-LQE2013-10 
Volume (vol) IEICE-113 
Number (no) no.49 
Page pp.45-48 
#Pages IEICE-4 
Date of Issue IEICE-LQE-2013-05-10 


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