Issue |
EPL
Volume 147, Number 1, July 2024
|
|
---|---|---|
Article Number | 15001 | |
Number of page(s) | 7 | |
Section | Atomic, molecular and optical physics | |
DOI | https://doi.org/10.1209/0295-5075/ad5d87 | |
Published online | 31 July 2024 |
Temporal coherences of atomic chaotic light sources: The Siegert relation and its generalisation to higher-order correlation functions
1 Université Côte d'Azur, CNRS, INPHYNI - France
2 Department of Optics, Palacký University - 17. listopadu 12, 771 46 Olomouc, Czech Republic
3 Departamento de Física, Universidade Federal de São Carlos - Rodovia Washington Luís, km 235 - SP-310, 13565-905 São Carlos, SP, Brazil
Received: 29 March 2024
Accepted: 1 July 2024
Light is characterized by its electric field, yet quantum optics has revealed the importance of monitoring photon-photon correlations at all orders. We here present a comparative study of two experimental setups, composed of cold and warm rubidium atoms, respectively, which allow us to probe and compare photon correlations. The former operates in the quantum regime where spontaneous emission dominates, whereas the latter exhibits a temperature-limited coherence time. We demonstrate our capability to measure photon correlations up to the fourth order which could be useful to better characterize light scattered by cold atoms beyond the chaotic statistics.
© 2024 EPLA
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