Two-photon superradiance and subradiance

2025/05/20 by W. Xie, Xie, Wenxuan, Imran M. Mirza +3 · 1 citation
Medicine · #FOS: Physical sciences #Ocular and Laser Science Research #Optics (physics.optics) #Quantum Physics (quant-ph)

paper · pdf · doi:10.48550/arxiv.2505.14965

openalex publication_date 2025/05/20 · openalex created_date 2025/10/19 · openalex updated_date 2026/07/28

Abstract

We consider the problem of two-photon cooperative emission in systems of two-level atoms. Two physically distinct regimes are analyzed. First, we investigate the case of a small number of atoms. We study the evolution of two-photon super- and sub-radiant states and associated two-photon spectra. Second, we investigate the problem of a constant density of atoms confined to a spherical volume. We analyze separately the cases in which the radius is small or large in comparison to the resonant wavelength.

Citations

• Kinetic equations for two-photon light in random media
• Invited Review Article: Single-photon sources and detectors

Cited by

• Symmetry and Pseudosymmetry properties with Ricci soliton of the Reissner-Nordström-de Sitter spacetime

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