Nonlinear defect theory of thermal relaxation in complex multimoded systems

E Kabat, AY Ramos, LJ Fernández-Alcázar… - Physical Review …, 2024 - APS
We show that a single nonlinear defect can thermalize an initial excitation towards a
Rayleigh-Jeans (RJ) state in complex multimoded systems. The thermalization can be …

Coupled Thermal and Power Transport of Optical Waveguide Arrays: Photonic Wiedemann-Franz Law and Rectification Effect

M Lian, Y Geng, YJ Chen, Y Chen, JT Lü - Physical Review Letters, 2024 - APS
In isolated nonlinear optical waveguide arrays, simultaneous conservation of longitudinal
momentum flow (“internal energy”) and optical power (“particle number”) of the optical …

Amplified Light Beam Cooling via Emergent Onsager's Irreversible Thermodynamics

Z Xiong, FO Wu, Y Liu, JH Jiang… - arXiv preprint arXiv …, 2024 - arxiv.org
High-brightness coherent light source is at the heart of optical technology and yet
challenging to achieve. Here, we propose an unconventional approach that utilizes the" …

Nonlinear Defect Theory of Thermalization in Complex Multimoded Systems

E Kabat, AY Ramos, LJ Fernández-Alcázar… - arXiv preprint arXiv …, 2024 - arxiv.org
We show that a single nonlinear defect can thermalize an initial excitation towards a
Rayleigh-Jeans (RJ) state in complex multimoded systems. The thermalization can be …

Effective grand-canonical description of condensation in negative-temperature regimes

S Iubini, A Politi - arXiv preprint arXiv:2406.15140, 2024 - arxiv.org
The observation of negative-temperature states in the localized phase of the the Discrete
Nonlinear Schr\" odinger (DNLS) equation has challenged statistical mechanics for a long …