Observing Quantum Coherent Oscillations in a Three-Level Atoms via Electromagnetically Induced Transparency by Two-Dimensional Spectroscopy

• URL: http://arxiv.org/abs/2401.07424v2
• Date: Sun, 05 Jan 2025 03:51:49 GMT
• Title: Observing Quantum Coherent Oscillations in a Three-Level Atoms via Electromagnetically Induced Transparency by Two-Dimensional Spectroscopy
• Authors: Jing-Yi-Ran Jin, Hao-Yue Zhang, Yi-Xuan Yao, Rong-Hang Chen, Qing Ai,
• Abstract summary: Two-dimensional electronic spectroscopy (2DES) has high spectral resolution and is a useful tool for studying atom dynamics. It is found that the original main peak is split into four small ones due to the introduction of the EIT. In sharp contrast to a constant height, the height of the peaks will manifest a damped oscillation with respect to the population time.
• Score: 0.18641315013048293
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• Abstract: Two-dimensional electronic spectroscopy (2DES) has high spectral resolution and is a useful tool for studying atom dynamics. In this paper, we show a smallest unit of electromagnetically induced transparency (EIT) for 2DES, that is, a three-level system. It is found that the original main peak is split into four small ones due to the introduction of the EIT. It suggests that the homogeneous broadening of 2DES can be effectively reduced by the EIT. Moreover, in sharp contrast to a constant height, the height of the peaks will manifest a damped oscillation with respect to the population time. It seems that the quantum-beat phenomenon appears. These findings may help us obtain more information about the dynamics of excited states.

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