Quantum sensing of temperature close to absolute zero in a Bose-Einstein condensate

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成果类型：

期刊论文

作者：

Yuan, Ji-Bing;Zhang, Bo;Song, Ya-Ju;Tang, Shi-Qing;Wang, Xin-Wen;...

通讯作者：

Yuan, JB;Kuang, LM

作者机构：

[Yuan, Ji-Bing; Zhang, Bo; Song, Ya-Ju; Yuan, JB; Tang, Shi-Qing; Wang, Xin-Wen] Hengyang Normal Univ, Key Lab Optoelect Control & Detect Technol Univ Hu, Hengyang 421002, Peoples R China.

[Yuan, Ji-Bing; Zhang, Bo; Song, Ya-Ju; Yuan, JB; Tang, Shi-Qing] Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang 421002, Peoples R China.

[Kuang, Le -Man; Kuang, LM] Hunan Normal Univ, Key Lab Low Dimens Quantum Struct & Quantum Contro, Minist Educ, Changsha 410081, Peoples R China.

[Kuang, Le -Man; Kuang, LM] Hunan Normal Univ, Dept Phys, Changsha 410081, Peoples R China.

[Kuang, Le -Man; Kuang, LM] Zhengzhou Univ Light Ind, Synerget Innovat Acad Quantum Sci & Technol, Zhengzhou 450002, Peoples R China.

通讯机构：

[Kuang, LM ; Yuan, JB ] H

Hengyang Normal Univ, Key Lab Optoelect Control & Detect Technol Univ Hu, Hengyang 421002, Peoples R China.

Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang 421002, Peoples R China.

Hunan Normal Univ, Key Lab Low Dimens Quantum Struct & Quantum Contro, Minist Educ, Changsha 410081, Peoples R China.

Hunan Normal Univ, Dept Phys, Changsha 410081, Peoples R China.

语种：

英文

期刊：

PHYSICAL REVIEW A

ISSN：

2469-9926

年：

2023

卷：

107

期：

页码：

063317

DOI：

10.1103/PhysRevA.107.063317

基金类别：

NSFC [12247105, 1217050862, 11935006, 11905053, 12205088]; Scientific Research Fund of Hunan Provincial Education Department of China [21B0647]; Hunan Provincial Natural Science Foundation of China [2018JJ3006]; Scientific Research Fund of Hunan Provincial Education Department of China [22A0507]; science and technology innovation Program of Hunan Province [2020RC4047]

机构署名：

本校为第一且通讯机构

院系归属：

物理与电子工程学院

摘要：

We propose a theoretical scheme for quantum sensing of temperature close to absolute zero in a quasi-one-dimensional Bose-Einstein condensate (BEC). In our scheme, a single-atom impurity qubit is used as a temperature sensor. We investigate the sensitivity of the single-atom sensor in estimating the temperature of the BEC. We demonstrate that the sensitivity of the temperature sensor can saturate the quantum Cramér-Rao bound by means of measuring quantum coherence of the probe qubit. We study the temperature sensing performance by using quantu...

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Quantum sensing of temperature close to absolute zero in a Bose-Einstein condensate

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