Experimental observation of quantum correlations in four-wave mixing with a conical pump

Leiming Cao; Jinjian Du; Jingliang Feng; Zhongzhong Qin; Alberto M. Marino; Mikhail I. Kolobov; Jietai Jing

doi:10.1364/OL.42.001201

Experimental observation of quantum correlations in four-wave mixing with a conical pump

Leiming Cao, Jinjian Du, Jingliang Feng, Zhongzhong Qin, Alberto M. Marino, Mikhail I. Kolobov, Jietai Jing

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

14 Scopus citations

Abstract

Generation of multimode quantum states has drawn much attention recently due to its importance for both fundamental science and the future development of quantum technologies. Here, by using a four-wave mixing process with a conical pump beam, we have experimentally observed about -3.8 dB of intensity-difference squeezing between a single-axial probe beam and a conical conjugate beam. The multi-spatial-mode nature of the generated quantum-correlated beams has been shown by comparing the variation tendencies of the intensity-difference noise of the probe and conjugate beams under global attenuation and local cutting attenuation. Due to its compactness, phase-insensitive nature, and easy scalability, our scheme may find potential applications in quantum imaging, quantum information processing, and quantum metrology.

Original language	English
Pages (from-to)	1201-1204
Number of pages	4
Journal	Optics Letters
Volume	42
Issue number	7
DOIs	https://doi.org/10.1364/OL.42.001201
State	Published - Apr 1 2017
Externally published	Yes

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title = "Experimental observation of quantum correlations in four-wave mixing with a conical pump",

abstract = "Generation of multimode quantum states has drawn much attention recently due to its importance for both fundamental science and the future development of quantum technologies. Here, by using a four-wave mixing process with a conical pump beam, we have experimentally observed about -3.8 dB of intensity-difference squeezing between a single-axial probe beam and a conical conjugate beam. The multi-spatial-mode nature of the generated quantum-correlated beams has been shown by comparing the variation tendencies of the intensity-difference noise of the probe and conjugate beams under global attenuation and local cutting attenuation. Due to its compactness, phase-insensitive nature, and easy scalability, our scheme may find potential applications in quantum imaging, quantum information processing, and quantum metrology.",

author = "Leiming Cao and Jinjian Du and Jingliang Feng and Zhongzhong Qin and Marino, {Alberto M.} and Kolobov, {Mikhail I.} and Jietai Jing",

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AU - Cao, Leiming

AU - Du, Jinjian

AU - Feng, Jingliang

AU - Qin, Zhongzhong

AU - Marino, Alberto M.

AU - Kolobov, Mikhail I.

AU - Jing, Jietai

PY - 2017/4/1

Y1 - 2017/4/1

N2 - Generation of multimode quantum states has drawn much attention recently due to its importance for both fundamental science and the future development of quantum technologies. Here, by using a four-wave mixing process with a conical pump beam, we have experimentally observed about -3.8 dB of intensity-difference squeezing between a single-axial probe beam and a conical conjugate beam. The multi-spatial-mode nature of the generated quantum-correlated beams has been shown by comparing the variation tendencies of the intensity-difference noise of the probe and conjugate beams under global attenuation and local cutting attenuation. Due to its compactness, phase-insensitive nature, and easy scalability, our scheme may find potential applications in quantum imaging, quantum information processing, and quantum metrology.

AB - Generation of multimode quantum states has drawn much attention recently due to its importance for both fundamental science and the future development of quantum technologies. Here, by using a four-wave mixing process with a conical pump beam, we have experimentally observed about -3.8 dB of intensity-difference squeezing between a single-axial probe beam and a conical conjugate beam. The multi-spatial-mode nature of the generated quantum-correlated beams has been shown by comparing the variation tendencies of the intensity-difference noise of the probe and conjugate beams under global attenuation and local cutting attenuation. Due to its compactness, phase-insensitive nature, and easy scalability, our scheme may find potential applications in quantum imaging, quantum information processing, and quantum metrology.

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Experimental observation of quantum correlations in four-wave mixing with a conical pump

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