Thermometry utilizing stored short-wavelength spin waves in cold atomic ensembles

Wang, Xingchang; Wang, Jianmin; Zuo, Ying; Dong, Liang; Siviloglou, Georgios A.1; Chen, Jiefei1

2023-06-01

10.1088/1674-1056/accb4f

CHINESE PHYSICS B   影响因子和分区

1674-1056

2058-3834

Temperature, as a measure of thermal motion, is a significant parameter characterizing a cold atomic ensemble optical quantum memory. In a cold gas, storage lifetime strongly depends on its temperature and is associated with the spin wave decoherence. Here we experimentally demonstrate a new spin wave thermometry method relying on this direct dependence. The short-wavelength spin waves resulting from the counter-propagating configuration of the control and the probe laser beams make this thermometry highly suitable for probing in situ the atomic motion in elongated clouds as the ones used in quantum memories. Our technique is realized with comparable precision for memories that rely on electromagnetically induced transparency as well as far-detuned Raman storage.

optical quantum memory temperature measurement collective atomic excitation electromagnetically induced transparency

SCI ; EI

英语

通讯

National Natural Science Foundation of China["12074171","12074168","92265109","12204227"] ; Key Laboratory Fund from Guangdong Province, China[2019B121203002] ; Natural Science Foundation of Guangdong Province, China["2022B1515020096","2019ZT08X324"]

Physics

Physics, Multidisciplinary

WOS:001011125000001

IOP Publishing Ltd

20232714346401

Atoms ; Laser beams ; Spin waves ; Thermometers ; Transparency

Magnetism: Basic Concepts and Phenomena:701.2 ; Light/Optics:741.1 ; Laser Beam Interactions:744.8 ; Atomic and Molecular Physics:931.3 ; Temperature Measuring Instruments:944.5 ; Temperature Measurements:944.6

Web of Science

1.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China

Wang, Xingchang,Wang, Jianmin,Zuo, Ying,et al. Thermometry utilizing stored short-wavelength spin waves in cold atomic ensembles[J]. CHINESE PHYSICS B,2023,32(7).

Wang, Xingchang,Wang, Jianmin,Zuo, Ying,Dong, Liang,Siviloglou, Georgios A.,&Chen, Jiefei.(2023).Thermometry utilizing stored short-wavelength spin waves in cold atomic ensembles.CHINESE PHYSICS B,32(7).

Wang, Xingchang,et al."Thermometry utilizing stored short-wavelength spin waves in cold atomic ensembles".CHINESE PHYSICS B 32.7(2023).