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Title: Experimental realization of the analogy of quantum dense coding in classical optics

Abstract

We report on the experimental realization of the analogy of quantum dense coding in classical optical communication using classical optical correlations. Compared to quantum dense coding that uses pairs of photons entangled in polarization, we find that the proposed design exhibits many advantages. Considering that it is convenient to realize in optical communication, the attainable channel capacity in the experiment for dense coding can reach 2 bits, which is higher than that of the usual quantum coding capacity (1.585 bits). This increased channel capacity has been proven experimentally by transmitting ASCII characters in 12 quaternary digitals instead of the usual 24 bits.

Authors:
; ; ; ; ;  [1]
  1. School of Physics, Beijing Institute of Technology and Beijing Key Laboratory of Fractional Signals and Systems, 100081, Beijing (China)
Publication Date:
OSTI Identifier:
22611518
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 6; Journal Issue: 6; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CAPACITY; COMMUNICATIONS; COMPARATIVE EVALUATIONS; CORRELATIONS; DESIGN; OPTICS; PHOTONS; POLARIZATION; QUANTUM ENTANGLEMENT; QUANTUM INFORMATION

Citation Formats

Yang, Zhenwei, Sun, Yifan, Li, Pengyun, Zhang, Xiong, Song, Xinbing, E-mail: zhangxd@bit.edu.cn, E-mail: songxinbing@bit.edu.cn, and Zhang, Xiangdong, E-mail: zhangxd@bit.edu.cn, E-mail: songxinbing@bit.edu.cn. Experimental realization of the analogy of quantum dense coding in classical optics. United States: N. p., 2016. Web. doi:10.1063/1.4954034.
Yang, Zhenwei, Sun, Yifan, Li, Pengyun, Zhang, Xiong, Song, Xinbing, E-mail: zhangxd@bit.edu.cn, E-mail: songxinbing@bit.edu.cn, & Zhang, Xiangdong, E-mail: zhangxd@bit.edu.cn, E-mail: songxinbing@bit.edu.cn. Experimental realization of the analogy of quantum dense coding in classical optics. United States. doi:10.1063/1.4954034.
Yang, Zhenwei, Sun, Yifan, Li, Pengyun, Zhang, Xiong, Song, Xinbing, E-mail: zhangxd@bit.edu.cn, E-mail: songxinbing@bit.edu.cn, and Zhang, Xiangdong, E-mail: zhangxd@bit.edu.cn, E-mail: songxinbing@bit.edu.cn. 2016. "Experimental realization of the analogy of quantum dense coding in classical optics". United States. doi:10.1063/1.4954034.
@article{osti_22611518,
title = {Experimental realization of the analogy of quantum dense coding in classical optics},
author = {Yang, Zhenwei and Sun, Yifan and Li, Pengyun and Zhang, Xiong and Song, Xinbing, E-mail: zhangxd@bit.edu.cn, E-mail: songxinbing@bit.edu.cn and Zhang, Xiangdong, E-mail: zhangxd@bit.edu.cn, E-mail: songxinbing@bit.edu.cn},
abstractNote = {We report on the experimental realization of the analogy of quantum dense coding in classical optical communication using classical optical correlations. Compared to quantum dense coding that uses pairs of photons entangled in polarization, we find that the proposed design exhibits many advantages. Considering that it is convenient to realize in optical communication, the attainable channel capacity in the experiment for dense coding can reach 2 bits, which is higher than that of the usual quantum coding capacity (1.585 bits). This increased channel capacity has been proven experimentally by transmitting ASCII characters in 12 quaternary digitals instead of the usual 24 bits.},
doi = {10.1063/1.4954034},
journal = {AIP Advances},
number = 6,
volume = 6,
place = {United States},
year = 2016,
month = 6
}
  • Classically, sending more than one bit of information requires manipulation of more than one two-state particle. We demonstrate experimentally that one can transmit one of three messages, i.e., 1 {open_quote}{open_quote}trit{close_quote}{close_quote} {approx_equal}1.58 bit, by manipulating only one of two entangled particles. The increased channel capacity is proven by transmitting ASCII characters in five trits instead of the usual eight bits. {copyright} {ital 1996 The American Physical Society.}
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