2024/11/26 by Manuel Bojer, Bojer, M., A. Cidrim +7 · 1 citation
Chemistry · Physics and Astronomy · #FOS: Physical sciences #Photonic Crystals and Applications #Quantum Physics (quant-ph) #Semiconductor Quantum Structures and Devices #Spectroscopy and Laser Applications
paper · pdf · doi:10.48550/arxiv.2411.17377
openalex publication_date 2024/11/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
We investigate the photon statistics of an ensemble of coherently driven non-interacting two-level atoms in the weak driving regime. As it turns out, the system displays unique emission characteristics that are strongly in contrast to the emission of classical oscillating dipoles. By deriving the second-order autocorrelation function, we show that extraordinary two-photon correlations are obtained, ranging from strong antibunching to superbunching. These features are enhanced by disorder in the emitter positions, and the control parameter is the number of excitations in the system. We observe the appearance of bunching and antibunching when the light is scattered by the atoms predominantly coherently, i.e., mimicking classical Rayleigh scattering, whereas thermal photon statistics is obtained when the light is scattered via spontaneous decay, a well-known quantum effect. The underlying mechanism is the interplay between coherent scattering, which exhibits spatial fluctuations due to interference, and dissipation in the form of isotropic spontaneous decay.