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Temporal coherences of atomic chaotic light sources: The Siegert relation and its generalisation to higher-order correlation functions

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Author(s):
Morisse, M. ; Joshi, S. ; Mika, J. ; Capella, J. C. C. ; Kaiser, R. ; Bachelard, R. ; Slodicka, L. ; Hugbart, M.
Total Authors: 8
Document type: Journal article
Source: EPL; v. 147, n. 1, p. 8-pg., 2024-07-01.
Abstract

- 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. (AU)

FAPESP's process: 22/00209-6 - Second generation quantum technologies
Grantee:Celso Jorge Villas-Bôas
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 18/15554-5 - Transport and localization of light in two and three dimensions
Grantee:Romain Pierre Marcel Bachelard
Support Opportunities: Research Grants - Young Investigators Grants - Phase 2
FAPESP's process: 19/13143-0 - Cold atoms, photons, and quantum correlations
Grantee:Celso Jorge Villas-Bôas
Support Opportunities: Regular Research Grants
FAPESP's process: 23/03300-7 - Localization of Light: Anderson and beyond
Grantee:Romain Pierre Marcel Bachelard
Support Opportunities: Regular Research Grants