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Updated: Oct 23, 2025
12:21
Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
Published on: April 4, 2016
11.4K
Second-harmonic generation as a minimal model of turbulence
N Vladimirova1,2, M Shavit2, S Belan3,4
1Brown University, Providence, Rhode Island 02912, USA.
Physical Review. E
|August 20, 2021
Summary
In noise-driven systems, mode interactions deviate from Gaussian statistics, showing phase correlations and unexpected information changes. This challenges understanding far-from-equilibrium physics and information encoding.
Area of Science:
- Quantum optics
- Non-equilibrium statistical mechanics
- Information theory
Background:
- Resonantly interacting modes in contact with a thermostat exhibit Gaussian statistics and independence.
- Noise-driven systems present complex statistical behaviors not captured by equilibrium assumptions.
Purpose of the Study:
- Investigate the statistical properties of noise-driven, interacting modes.
- Explore information encoding and entropy in far-from-equilibrium systems.
- Analyze the impact of noise on phase correlations and energy conversion.
Main Methods:
- Modeling of noise-driven and instability-driven systems with interacting modes.
- Analysis of statistical distributions, phase correlations, and mutual information.
- Comparison of system behavior under varying interaction strengths and noise levels.
Main Results:
- Noise-driven cascades deviate from Gaussian statistics, exhibiting phase correlations.
- Mutual information increases and entropy decreases with decreasing interaction strength.
- Noise significantly affects relative phase near stability thresholds in instability-driven systems.
Conclusions:
- Far-from-equilibrium systems display non-Gaussian statistics and complex information dynamics.
- Interaction strength and noise level critically influence system behavior and information encoding.
- Understanding these dynamics is key to fundamental problems in non-equilibrium physics.
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