Electromagnetically Induced Transparency and Absorption Cross-over with a Four-Level Rydberg System

We investigate Electromagnetically induced transparency (EIT) and absorption (EIA) phenomena with Rydberg atoms. We present a self-consistent many-body model to study interacting Cs and Rb atomic ensembles in a four-level ladder-type scheme [1]. The proposed many-body method produces results that agree with experiments [2,3]. We simulate the interaction effects in such systems that have significant importance, especially for controlling the optical response of these systems. We also notice an EIT-EIA cross-over in the Rb case, which was experimentally observed [3].

References:

[1] Y. Oyun, Ö. Çakır and S. Sevinçli, J. Phys. B: At. Mol. Opt. Phys. 55, 145502 (2022).

[2] N. Šibalić, J. M. Kondo, C. S. Adams and K. J. Weatherill, Phys. Rev. A. 94, 033840 (2016).

[3] N. Thaicharoen, K. R. Moore, D. A. Anderson, R. C. Powel, E. Peterson and G. Raithel, Phys. Rev. A 100, 063427 (2019).