期刊
OPTICS LETTERS
卷 44, 期 16, 页码 3936-3939出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.44.003936
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资金
- Office of Naval Research (ONR) [N00014-17-1-2588, N00014-18-1-2347]
- National Science Foundation (NSF) [EECS-1711230]
- Qatar National Research Fund (QNRF) [NPRP9-020-1-006]
- Polish Ministry of Science and Higher Education
We show that, in general, any complex weakly nonlinear highly multimode system can reach thermodynamic equilibrium, 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. (C) 2019 Optical Society of America.
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