Quantum-Enhanced Optical-Phase Tracking-Reference-Cited by-同舟云学术

Quantum-Enhanced Optical-Phase Tracking

Published:2012-09-21 Issue:6101 Volume:337 Page:1514-1517
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Yonezawa Hidehiro¹,Nakane Daisuke¹,Wheatley Trevor A.¹²³,Iwasawa Kohjiro¹,Takeda Shuntaro¹,Arao Hajime¹,Ohki Kentaro⁴,Tsumura Koji⁵,Berry Dominic W.⁶⁷,Ralph Timothy C.²⁸,Wiseman Howard M.⁹,Huntington Elanor H.²³,Furusawa Akira¹

Affiliation:

1. Department of Applied Physics, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.

2. Centre for Quantum Computation and Communication Technology, Australian Research Council, Canberra, Australia.

3. School of Engineering and Information Technology, University College, The University of New South Wales, Canberra, ACT 2600, Australia.

4. Department of Applied Mathematics and Physics, Graduate School of Informatics, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan.

5. Department of Information Physics and Computing, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.

6. Institute for Quantum Computing, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.

7. Department of Physics and Astronomy, Macquarie University, NSW 2109, Australia.

8. School of Mathematics and Physics, University of Queensland, Brisbane, QLD 4072, Australia.

9. Centre for Quantum Dynamics and Centre for Quantum Computation and Communication Technology, Griffith University, Brisbane, QLD 4111, Australia.

Abstract

Keeping Track of Photon Phase In optical interferometers or optical communications, information is often stored in terms of the phase of the waveform or light pulse. However, fluctuations and noise can give rise to random jitter in the phase and amplitude of the optical pulses, making it difficult to keep track of the phase. Yonezawa et al. (p. 1514 ) developed a technique based on quantum mechanical squeezing to determine the phase of randomly varying optical waveforms. The quantum mechanical technique enhanced the precision with which the phase could be determined and, as optical technologies continue to be miniaturized, should be helpful in applications within metrology.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference29 articles.

1. All-optical phase and amplitude regenerator for next-generation telecommunications systems

2. Optical codeword demodulation with error rates below the standard quantum limit using a conditional nulling receiver

3. Advances in quantum metrology

4. C. W. Helstrom Quantum Detection and Estimation Theory (Academic Press New York 1976).

5. Quantum-Enhanced Measurements: Beating the Standard Quantum Limit

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