Generation of continuous variable quantum entanglement using a fiber optical parametric amplifier

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Author(s)

  • Xueshi Guo
  • Nannan Liu
  • Yuhong Liu
  • Xiaoying Li
  • Z. Y. Ou

Detail(s)

Original languageEnglish
Pages (from-to)653-656
Journal / PublicationOptics Letters
Volume41
Issue number3
Publication statusPublished - 1 Feb 2016
Externally publishedYes

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-84962184411&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(5d903a22-12d0-4f87-b2df-2e46a62fdaeb).html

Abstract

We demonstrate the experimental generation of quadrature amplitude entanglement in the 1550 nm band by using a fiber optical parametric amplifier. The measured noise variances of the difference and sum of the quadrature amplitudes of the pulsed signal and idler twin beams fall below the shot noise limit by about 1 and 0.8 dB (4.2 and 3.6 dB after the correction for efficiency), respectively, showing that the inseparability criterion of Einstein-Podolsky-Rosen entanglement I < 2 is satisfied. Our investigation reveals that the quality of the measured entanglement can be further improved by increasing the transmission efficiency of the twin beams and by optimizing the temporal mode matching of the two sets of homodyne detection systems.

Bibliographic Note

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Publication fingerprints text

100
Entanglement Keyphrases
100
Twin Beam Keyphrases
100
Quadrature Amplitud... Keyphrases
100
Fiber Optical Param... Keyphrases
100
Continuous-variable... Keyphrases
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Amplitude Physics
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Optical Fiber Physics
100
Quantum Entanglemen... Physics
100
Continuous Variable Engineering
100
Optical Parametric ... Engineering
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Citation Format(s)

[ RIS ] [ BibTeX ]
Generation of continuous variable quantum entanglement using a fiber optical parametric amplifier. / Guo, Xueshi; Liu, Nannan; Liu, Yuhong et al.
In: Optics Letters, Vol. 41, No. 3, 01.02.2016, p. 653-656.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review