| Issue |
EPJ Web Conf.
Volume 335, 2025
EOS Annual Meeting (EOSAM 2025)
|
|
|---|---|---|
| Article Number | 07006 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting - Optical Fiber Technology | |
| DOI | https://doi.org/10.1051/epjconf/202533507006 | |
| Published online | 22 September 2025 | |
https://doi.org/10.1051/epjconf/202533507006
Classical light thermalization toward negative temperature equilibrium states in optical fibers and extension to the quantum regime
1 Université Côte d’Azur, Institut de Physique de Nice, Nice, France
2 Université de Bourgogne, Laboratoire Interdisciplinaire Carnot de Bourgogne, Dijon, France
3 CMAP, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau Cedex, France
4 CEA, DAM, DIF, F-91297 Arpajon Cedex, France
* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 22 September 2025
Abstract
We report the observation of classical light thermalization to the negative temperature Rayleigh-Jeans (RJ) equilibrium states. We extend theoretically these equilibrium states to the Bose-Einstein quantum regime (BE) through the analysis of the thermodynamic properties.
© The Authors, published by EDP Sciences, 2025
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