Non-Gaussian correlations in the steady-state of driven-dissipative clouds of two-level atoms

• DOI: 10.48550/arxiv.2311.13503
• Publication Date: 2023-01-01
• Authors: Giovanni Ferioli; Sara Pancaldi; Antoine Glicenstein; David Clément; Antoine Browaeys; Igor Ferrier-Barbut
• Keywords: Realization (probability)

We report experimental measurements of the second-order coherence function $g^{(2)}(\tau)$ light emitted by a laser-driven dense ensemble $^{87}$Rb atoms. observe clear departure from Siegert relation valid for Gaussian chaotic light. Measuring intensity and first-order coherence, we conclude that violation is not due to emergence coherent field. This indicates obeys non-Gaussian statistics, stemming correlations in atomic medium. More specifically, steady-state this driven-dissipative many-body system sustains high-order absence coherence. These findings call new theoretical explorations uncover their origin they open perspectives realization states