Low-Noise Intensity Amplification of a Bright Entangled Beam

Yanbo Lou; Xiaoyin Xu; Shengshuai Liu; Jietai Jing

doi:10.1088/0256-307X/38/9/090301

Low-Noise Intensity Amplification of a Bright Entangled Beam

Yanbo Lou, Xiaoyin Xu, Shengshuai Liu, Jietai Jing

Institute for Advanced Study in Precision Spectroscopy

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

Abstract

We experimentally demonstrate a low-noise phase-sensitive amplifier (PSA) scheme that is able to amplify bright entangled beams at a high level intensity gain of up to 4.4. Moreover, we demonstrate that the PSA scheme introduces much less uncorrelated extra noise to the entangled state than the phase-insensitive amplifier scheme with the same intensity gain. This PSA scheme has potential applications for quantum communication in continuous variable regimes.

Original language	English
Article number	090301
Journal	Chinese Physics Letters
Volume	38
Issue number	9
DOIs	https://doi.org/10.1088/0256-307X/38/9/090301
State	Published - Oct 2021

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title = "Low-Noise Intensity Amplification of a Bright Entangled Beam",

abstract = "We experimentally demonstrate a low-noise phase-sensitive amplifier (PSA) scheme that is able to amplify bright entangled beams at a high level intensity gain of up to 4.4. Moreover, we demonstrate that the PSA scheme introduces much less uncorrelated extra noise to the entangled state than the phase-insensitive amplifier scheme with the same intensity gain. This PSA scheme has potential applications for quantum communication in continuous variable regimes.",

author = "Yanbo Lou and Xiaoyin Xu and Shengshuai Liu and Jietai Jing",

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AU - Lou, Yanbo

AU - Xu, Xiaoyin

AU - Liu, Shengshuai

AU - Jing, Jietai

PY - 2021/10

Y1 - 2021/10

N2 - We experimentally demonstrate a low-noise phase-sensitive amplifier (PSA) scheme that is able to amplify bright entangled beams at a high level intensity gain of up to 4.4. Moreover, we demonstrate that the PSA scheme introduces much less uncorrelated extra noise to the entangled state than the phase-insensitive amplifier scheme with the same intensity gain. This PSA scheme has potential applications for quantum communication in continuous variable regimes.

AB - We experimentally demonstrate a low-noise phase-sensitive amplifier (PSA) scheme that is able to amplify bright entangled beams at a high level intensity gain of up to 4.4. Moreover, we demonstrate that the PSA scheme introduces much less uncorrelated extra noise to the entangled state than the phase-insensitive amplifier scheme with the same intensity gain. This PSA scheme has potential applications for quantum communication in continuous variable regimes.

UR - https://www.scopus.com/pages/publications/85118301788

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DO - 10.1088/0256-307X/38/9/090301

M3 - 文章

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SN - 0256-307X

VL - 38

JO - Chinese Physics Letters

JF - Chinese Physics Letters

IS - 9

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Low-Noise Intensity Amplification of a Bright Entangled Beam

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