Efficient quantum storage apparatus for continuous variable non-classic light field

A storage device, a non-classical technology, applied in the field of high-efficiency quantum storage devices, can solve the problems of low quantum storage efficiency and achieve the effects of improving quantum storage efficiency, high-efficiency storage and release, and high-efficiency quantum storage

Inactive Publication Date: 2017-09-22
SHANXI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problem of low efficiency of the existing non-classical light field quantum storage,

Method used

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  • Efficient quantum storage apparatus for continuous variable non-classic light field
  • Efficient quantum storage apparatus for continuous variable non-classic light field
  • Efficient quantum storage apparatus for continuous variable non-classic light field

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 1 As shown, a high-efficiency quantum storage device of a continuous variable non-classical light field in this embodiment includes a light source unit 1, an atomic system 2 and a compressed measurement system 3; the light source unit 1 is provided with a local oscillator optical signal a L Output terminal, probe optical pulse signal a P output and control optical pulse signal a C Output terminal; the horizontally polarized probe light pulse signal a P The output terminal is connected to the first input terminal ① of the atomic system 2, and the vertically polarized control optical pulse signal a C The output terminal is connected to the second input terminal ② of the atomic system 2, the output terminal of the atomic system 2 is connected to the first input terminal ① of the compression measurement system 3, and the l...

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Abstract

The invention relates to an efficient quantum storage apparatus for a continuous variable non-classic light field, and mainly solves the technical problem of low quantum storage efficiency of an existing non-classic light field. According to the technical scheme, the efficient quantum storage apparatus for the continuous variable non-classic light field comprises a light source unit, an atomic system and a compression measurement system, wherein the light source unit is provided with a local oscillation light signal aL output end, a probe light pulse signal aP output end and a control light pulse signal aC output end; the probe light pulse signal aP output end is connected with a first input end of the atomic system; the control light pulse signal aC output end is connected with a second input end of the atomic system; the output end of the atomic system is connected with a first input end of the compression measurement system; the local oscillation light signal aL output end is connected with a second input end of the compression measurement system; and the compression measurement system consists of an optical beam splitter, two balanced zero beat detectors, a power subtractor and a digital storage oscilloscope.

Description

technical field [0001] The invention relates to a high-efficiency quantum storage device with continuous variable non-classical light field. It belongs to a device that stores the quantum state of the continuously variable squeezed state light field into the spin wave quantum state of the atomic ensemble, and improves the quantum storage efficiency through an optical resonant cavity. Background technique [0002] With the development of quantum information science, the quantum information network composed of optical quantum channels and atomic quantum nodes is the guarantee for practical applications. Among them, light is an ideal carrier for long-distance transmission of quantum information; atomic ensembles are one of the effective media for realizing quantum nodes due to their advantages of large optical thickness and good coherence, and can realize the storage and processing of quantum information. Therefore, storing the quantum state of light in an atomic ensemble is a...

Claims

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Application Information

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IPC IPC(8): G11C13/04B82Y10/00G06N99/00
CPCB82Y10/00G06N10/00G11C13/04
Inventor 闫智辉贾晓军彭堃墀
Owner SHANXI UNIV
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