On Rabi oscillations in ground hyperfine states of 87Rb atom driven by a microwave field

IF 2 3区物理与天体物理 Q3 OPTICS

Applied Physics B Pub Date : 2025-07-08 DOI:10.1007/s00340-025-08505-z

S. Sarkar, Vivek Singh, K. A. P. Singh, A. Chaudhary, V. B. Tiwari, S. R. Mishra

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引用次数: 0

Abstract

We have observed the Rabi oscillations of the population of \(^{87}Rb\) atoms in the hyperfine ground state, when a cold atom cloud prepared in the hyperfine ground state (\(F = 1\)) was exposed to a microwave (MW) radiation field resonant to the \(|F = 1, m_{F} = 0>\) \(\rightarrow\) \(|F = 2, m_{F} = 0>\) transition. After exposure to MW field, the atom cloud was imaged using the absorption probe method. The absorption images have revealed that population excited to the hyperfine state (\(F = 2\)) varied with the position in the atom cloud, showing the position dependent atom-field coupling strength. At a given position in the atom cloud, the excited population shows Rabi oscillations between two hyperfine states. Thus, we have demonstrated that by measuring the position dependent Rabi frequency, the spatial variation of magnetic field can be measured using a cold atom cloud.

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微波场驱动87Rb原子基超精细态的Rabi振荡

我们观察了在超精细基态（\(F = 1\)）制备的冷原子云暴露在与\(|F = 1, m_{F} = 0>\)\(\rightarrow\)\(|F = 2, m_{F} = 0>\)跃迁共振的微波（MW）辐射场中时，超精细基态\(^{87}Rb\)原子居群的拉比振荡。原子云暴露于微波场后，采用吸收探针法成像。吸收图像显示，激发到超精细态（\(F = 2\)）的居群随原子云位置的变化而变化，显示出位置依赖于原子场耦合强度。在原子云的给定位置，激发态在两个超精细态之间表现出拉比振荡。因此，我们已经证明，通过测量位置相关的拉比频率，可以使用冷原子云测量磁场的空间变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Physics B 物理-光学

CiteScore

4.00

自引率

4.80%

发文量

202

审稿时长

3.0 months

期刊介绍： Features publication of experimental and theoretical investigations in applied physics Offers invited reviews in addition to regular papers Coverage includes laser physics, linear and nonlinear optics, ultrafast phenomena, photonic devices, optical and laser materials, quantum optics, laser spectroscopy of atoms, molecules and clusters, and more 94% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again Publishing essential research results in two of the most important areas of applied physics, both Applied Physics sections figure among the top most cited journals in this field. In addition to regular papers Applied Physics B: Lasers and Optics features invited reviews. Fields of topical interest are covered by feature issues. The journal also includes a rapid communication section for the speedy publication of important and particularly interesting results.