Suppression of the four-wave-mixing background noise in a quantum memory retrieval process by channel blocking

Kai Zhang; Jinxian Guo; L. Q. Chen; Chunhua Yuan; Z. Y. Ou; Weiping Zhang

doi:10.1103/PhysRevA.90.033823

Suppression of the four-wave-mixing background noise in a quantum memory retrieval process by channel blocking

Kai Zhang^*
, Jinxian Guo
, L. Q. Chen
, Chunhua Yuan
, Z. Y. Ou
, Weiping Zhang

^*此作品的通讯作者

物理与电子科学学院

East China Normal University
Indiana University-Purdue University Indianapolis

科研成果: 期刊稿件 › 文章 › 同行评审

24 引用（Scopus）

摘要

In a quantum memory scheme with the Raman process, the read process encounters noise from four-wave mixing (FWM), which can destroy the nonclassical properties of the generated quantum fields. Here we demonstrate experimentally that the noise from FWM can be greatly suppressed by simply reducing the FWM transition channels with a circularly polarized read beam while at the same time retaining relatively high retrieval efficiency.

源语言	英语
文章编号	033823
期刊	Physical Review A - Atomic, Molecular, and Optical Physics
卷	90
期	3
DOI	https://doi.org/10.1103/PhysRevA.90.033823
出版状态	已出版 - 16 9月 2014

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10.1103/PhysRevA.90.033823

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abstract = "In a quantum memory scheme with the Raman process, the read process encounters noise from four-wave mixing (FWM), which can destroy the nonclassical properties of the generated quantum fields. Here we demonstrate experimentally that the noise from FWM can be greatly suppressed by simply reducing the FWM transition channels with a circularly polarized read beam while at the same time retaining relatively high retrieval efficiency.",

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AU - Ou, Z. Y.

AU - Zhang, Weiping

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AB - In a quantum memory scheme with the Raman process, the read process encounters noise from four-wave mixing (FWM), which can destroy the nonclassical properties of the generated quantum fields. Here we demonstrate experimentally that the noise from FWM can be greatly suppressed by simply reducing the FWM transition channels with a circularly polarized read beam while at the same time retaining relatively high retrieval efficiency.

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Suppression of the four-wave-mixing background noise in a quantum memory retrieval process by channel blocking

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