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An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
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Statistics of the dissipated energy in driven diffusive systems.
A Lasanta1, Pablo I Hurtado2,3, A Prados4
1CNR-ISC and Dipartimento di Fisica, Università La Sapienza, p.le A. Moro 2, 00185, Rome, Italy. alasanta@us.es.
The European Physical Journal. E, Soft Matter
|March 24, 2016
Summary
This study introduces a generalized macroscopic fluctuation theory to analyze energy dissipation in non-equilibrium systems. It provides a new framework for understanding fluctuations in driven dissipative media like granular materials.
Area of Science:
- Statistical Physics
- Non-Equilibrium Systems
- Complex Systems
Background:
- Understanding non-equilibrium systems is a key challenge in statistical physics.
- Macroscopic fluctuation theory (MFT) has advanced the study of diffusive systems.
- A gap exists in theories for systems with continuous energy dissipation, such as granular media.
Purpose of the Study:
- To develop a theoretical framework for analyzing fluctuations in driven dissipative systems.
- To investigate the role of dissipated energy in the non-equilibrium behavior of these systems.
- To provide a pedagogical analysis of energy fluctuations using a generalized MFT.
Main Methods:
- Generalization of macroscopic fluctuation theory (MFT) for driven dissipative media.
- Analysis of fluctuations in dissipated energy.
- Pedagogical approach to illustrate the theory's application.
Main Results:
- Dissipated energy is identified as a relevant quantity for characterizing non-equilibrium behavior in driven dissipative systems.
- A generalized MFT is successfully applied to analyze energy fluctuations.
- The study offers new insights into the physics of systems where energy is continuously dissipated.
Conclusions:
- The generalized MFT provides a powerful tool for studying fluctuations in driven dissipative systems.
- This work bridges a theoretical gap in understanding non-equilibrium physics, particularly for granular media.
- The findings pave the way for further research into the statistical properties of complex non-equilibrium phenomena.
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