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

School of Physics and Electronic Science

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

20 Scopus citations

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.

Original language	English
Article number	033823
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	90
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevA.90.033823
State	Published - 16 Sep 2014

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10.1103/PhysRevA.90.033823

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

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 - Zhang, Kai

AU - Guo, Jinxian

AU - Chen, L. Q.

AU - Yuan, Chunhua

AU - Ou, Z. Y.

AU - Zhang, Weiping

PY - 2014/9/16

Y1 - 2014/9/16

N2 - 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.

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.

UR - https://www.scopus.com/pages/publications/84907191996

U2 - 10.1103/PhysRevA.90.033823

DO - 10.1103/PhysRevA.90.033823

M3 - 文章

AN - SCOPUS:84907191996

SN - 1050-2947

VL - 90

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 3

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ER -

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

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