Double-optical phase-transition in a three level Rydberg state in thermal Rubidium vapor
Abstract
We report on the observation of electromagnetically induced transparency (EIT) with intrinsic phase transitions in a three-level ladder system within rubidium atomic vapor. The observed abrupt transitions between low and high Rydberg occupancy states manifest in the probe beam transmission, depending on the principal quantum number, the Rabi frequency of the coupling field, atomic density, and probe beam detuning. Our study elucidates the underlying interaction mechanisms governing the EIT phase transition and enriches the existing experiments of multi-parameter regulation phase transitions. These findings establish a robust platform for investigating nonequilibrium phase transitions in atomic ensembles, bridging the gap between classical mean-field theories and microscopic quantum dynamics.
Keywords
Cite
@article{arxiv.2504.10799,
title = {Double-optical phase-transition in a three level Rydberg state in thermal Rubidium vapor},
author = {Lin Cheng and Kun Huang and Chunhui Shao and Fan Wu and Zhiyuan Xiong and Yanpeng Zhang},
journal= {arXiv preprint arXiv:2504.10799},
year = {2025}
}