Work

Resonant dipole-dipole interactions in electromagnetically induced transparency

Year: 2022

Type: article

Abstract: Resonant dipole-dipole interaction (RDDI) emerges in strong light-matter interacting systems, which leads to many fascinating phenomena such as cooperative light scattering and collective radiation. Here, we theoretically investigate the role of RDDI in electromagnetically induced transparency (EIT). The resonant dipole-dipole interactions manifest themselves in the cooperative spontaneous emission of the probe light transition, which give rise a broadened linewidth and associated collective frequency shift. This cooperative linewidth originates from the nonlocal and long-range RDDI, which can be determined by the atomic density, optical depth, and macroscopic length scales of the atomic ensemble. We present the finding that EIT spectroscopy essentially demonstrates all-order multiple scattering of RDDI. Furthermore, we find that the EIT transparency window becomes narrower as the cooperative linewidth increases, which essentially reduces the storage efficiency of slow light as an EIT-based quantum memory application.

Source: Physical Review A

DOI: 10.1103/physreva.105.063711

Authors: H. H. Jen, G.-D. Lin, Y.-C. Chen

Institutions: National Center for Theoretical Sciences, Institute of Atomic and Molecular Sciences, Academia Sinica, National Center for Theoretical Sciences, Physics Division, Academia Sinica, National Taiwan University

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Center for Theoretical Sciences, Ministry of Science and Technology, Taiwan

Award: Quantum Correlations and Collective Atomic Motions in a Chirally Coupled Atomic Chain