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Lee, Hai-Woong
School of Natural Sciences
Research Interests
  • Quantum Information
  • Entanglement
  • Wigner Distribution Function

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The Gaussian-smoothed Wigner function and its application to precision analysis

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Title
The Gaussian-smoothed Wigner function and its application to precision analysis
Author
Lee, Hai-Woong
Issue Date
2015-02
Publisher
ELSEVIER SCIENCE BV
Citation
OPTICS COMMUNICATIONS, v.337, pp.62 - 65
Abstract
We study a class of phase-space distribution functions that is generated from a Gaussian convolution of the Wigner distribution function. This class of functions represents the joint count probability in simultaneous measurements of position and momentum. We show that, using these functions, one can determine the expectation value of a certain class of operators accurately, even if measurement data performed only with imperfect detectors are available. As an illustration, we consider the eight-port homodyne detection experiment that performs simultaneous measurements of two quadrature amplitudes of a radiation field.
URI
https://scholarworks.unist.ac.kr/handle/201301/9501
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84914672677
DOI
10.1016/j.optcom.2014.06.024
ISSN
0030-4018
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PHY_Journal Papers
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