Resonant Dipole-Dipole Interactions in Electromagnetically Induced Transparency

Abstract

Resonant dipole-dipole interaction (RDDI) is ubiquitous in light-matter interacting systems and is responsible for many fascinating properties of collective radiations. Here we theoretically investigate the role of RDDI in electromagnetically induced transparency (EIT). The resonant dipole-dipole interactions manifest 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 that EIT spectroscopy essentially demonstrates all-order multiple scattering of RDDI. Furthermore, we find that EIT transparency window becomes narrower as the cooperative linewidth increases, which essentially reduces the storage efficiency of slow light as EIT-based quantum memory application.

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References in corpus (8)

• Cooperative atom-light interaction in a blockaded Rydberg ensemble
• Electromagnetically induced transparency with single atoms in a cavity
• Efficient quantum memory for single photon polarization qubits
• Transmission of near-resonant light through a dense slab of cold atoms
• Phase-imprinted multiphoton subradiant states
• Mean field theory of weakly-interacting Rydberg polaritons in the EIT system based on the nearest-neighbor distribution
• Sensitivity of electromagnetically induced transparency to light-mediated interactions
• Nonlinear absorption in interacting Rydberg electromagnetically-induced-transparency spectra on two-photon resonance

Cited by in corpus (2)

• Photon-mediated dipole-dipole interactions as a resource for quantum science and technology in cold atoms
• Enhanced dark-state sideband cooling in trapped atoms via photon-mediated dipole-dipole interactions