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arXiv · 1908.01708

Thermodynamic conditions governing the optical temperature and chemical potential in nonlinear highly multimoded photonic systems

Midya Parto·Fan O. Wu·Pawel S. Jung·Konstantinos Makris·Demetrios N. Christodoulides
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Abstract

We show that, in general, any complex weakly nonlinear highly multimode system can reach thermodynamic equilibrium that is characterized by a unique temperature and chemical potential. The conditions leading to either positive or negative temperatures are explicitly obtained in terms of the linear spectrum of the system, the input power, and the corresponding Hamiltonian invariant. Pertinent examples illustrating these results are provided in various scenarios.

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Midya Parto, Fan O. Wu, Pawel S. Jung, Konstantinos Makris, Demetrios N. Christodoulides. 2019-08-05. Thermodynamic conditions governing the optical temperature and chemical potential in nonlinear highly multimoded photonic systems. https://doi.org/10.1364/ol.44.003936

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