Spatio-temporal thermalization and adiabatic cooling of guided light waves
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866915778807201792 |
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| author | Zanaglia, Lucas Garnier, Josselin Carusotto, Iacopo Doya, Valérie Michel, Claire Picozzi, Antonio |
| author_facet | Zanaglia, Lucas Garnier, Josselin Carusotto, Iacopo Doya, Valérie Michel, Claire Picozzi, Antonio |
| contents | We propose and theoretically characterize three-dimensional spatio-temporal thermalization of a continuous-wave classical light beam propagating along a multi-mode optical waveguide. By combining a non-equilibrium kinetic approach based on the wave turbulence theory and numerical simulations of the field equations, we anticipate that thermalizing scattering events are dramatically accelerated by the combination of strong transverse confinement with the continuous nature of the temporal degrees of freedom. In connection with the blackbody catastrophe, the thermalization of the classical field in the continuous temporal direction provides an intrinsic mechanism for adiabatic cooling and, then, spatial beam condensation. Our results open new avenues in the direction of a simultaneous spatial and temporal beam cleaning. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_23536 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spatio-temporal thermalization and adiabatic cooling of guided light waves Zanaglia, Lucas Garnier, Josselin Carusotto, Iacopo Doya, Valérie Michel, Claire Picozzi, Antonio Optics Pattern Formation and Solitons We propose and theoretically characterize three-dimensional spatio-temporal thermalization of a continuous-wave classical light beam propagating along a multi-mode optical waveguide. By combining a non-equilibrium kinetic approach based on the wave turbulence theory and numerical simulations of the field equations, we anticipate that thermalizing scattering events are dramatically accelerated by the combination of strong transverse confinement with the continuous nature of the temporal degrees of freedom. In connection with the blackbody catastrophe, the thermalization of the classical field in the continuous temporal direction provides an intrinsic mechanism for adiabatic cooling and, then, spatial beam condensation. Our results open new avenues in the direction of a simultaneous spatial and temporal beam cleaning. |
| title | Spatio-temporal thermalization and adiabatic cooling of guided light waves |
| topic | Optics Pattern Formation and Solitons |
| url | https://arxiv.org/abs/2506.23536 |