Optimization of Quantum Correlation in Cascaded Four-Wave Mixing

Jingliang Feng; Jietai Jing

doi:10.1007/s10773-016-3225-2

Optimization of Quantum Correlation in Cascaded Four-Wave Mixing

Jingliang Feng, Jietai Jing

Institute for Advanced Study in Precision Spectroscopy

Research output: Contribution to journal › Article › peer-review

Abstract

We propose a measurement strategy that can be used to optimize quantum correlation for a cascaded four-wave mixing (FWM) structure. By calculating the covariance matrix of a cascaded FWM structure, we can get all the correlations between any two parties in the outputs. We then calculate the eigenvalues and corresponding eigenmodes of the covariance matrix to find the squeezing degrees of the squeezed modes. Our theoretical model can explain our previous experimental results very well and is useful to optimize the squeezing degree in the cascaded FWM structure.

Original language	English
Pages (from-to)	822-832
Number of pages	11
Journal	International Journal of Theoretical Physics
Volume	56
Issue number	3
DOIs	https://doi.org/10.1007/s10773-016-3225-2
State	Published - 1 Mar 2017

Keywords

Cascaded four-wave mixing
Covariance matrix
Squeezing degree

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10.1007/s10773-016-3225-2

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abstract = "We propose a measurement strategy that can be used to optimize quantum correlation for a cascaded four-wave mixing (FWM) structure. By calculating the covariance matrix of a cascaded FWM structure, we can get all the correlations between any two parties in the outputs. We then calculate the eigenvalues and corresponding eigenmodes of the covariance matrix to find the squeezing degrees of the squeezed modes. Our theoretical model can explain our previous experimental results very well and is useful to optimize the squeezing degree in the cascaded FWM structure.",

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AB - We propose a measurement strategy that can be used to optimize quantum correlation for a cascaded four-wave mixing (FWM) structure. By calculating the covariance matrix of a cascaded FWM structure, we can get all the correlations between any two parties in the outputs. We then calculate the eigenvalues and corresponding eigenmodes of the covariance matrix to find the squeezing degrees of the squeezed modes. Our theoretical model can explain our previous experimental results very well and is useful to optimize the squeezing degree in the cascaded FWM structure.

KW - Cascaded four-wave mixing

KW - Covariance matrix

KW - Squeezing degree

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Optimization of Quantum Correlation in Cascaded Four-Wave Mixing

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Keywords

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