Journal of the Optical Society of Korea

  • 제9권4호
  • /
  • Pages.169-172
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  • 2005
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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The Phase Sensitivity of the Coincidence Detection in one Output Port of a Mach-Zehnder Interferometer

  • Shin Harim (Department of physics, University of Ulsan) ;
  • Kim Henoh (Department of physics, University of Ulsan) ;
  • Park Goodong (Department of physics, University of Ulsan) ;
  • Kim Taesoo (Department of physics, University of Ulsan)
  • 투고 : 2005.04.15
  • 발행 : 2005.12.01
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초록

The phase sensitivity of the coincidence detection in one output port of a Mach-Zehnder interferometer is analysed for twin Fock state inputs. Firstly, the ideal detectors with quantum efficiency of unity are assumed for the detection of the output photons. The sensitivity is found out to be independent of the photon number of input light, which means that the Heisenberg limit cannot be reached in the coincidence detection even with ideal detectors. Secondly, the practical detectors with quantum efficiencies less than unity are discussed.

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참고문헌

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피인용 문헌

  1. Error Analysis for Optical Security by means of 4-Step Phase-Shifting Digital Holography vol.10, pp.3, 2006, https://doi.org/10.3807/JOSK.2006.10.3.118