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Memory and Friction: From the Nanoscale to the Macroscale.
Benjamin A Dalton1, Anton Klimek1, Henrik Kiefer1
1Department of Physics, Freie Universität Berlin, Berlin, Germany;
Annual Review of Physical Chemistry
|February 14, 2025
Summary
Time-dependent friction is crucial for understanding complex systems, but difficult to calculate. Recent advances in friction extraction and simulation methods now allow for its evaluation across all scales.
Area of Science:
- Physics
- Chemistry
- Biology
- Computational Science
Background:
- Friction, the dissipation of energy during motion, occurs at all scales.
- Time-dependent (non-Markovian) friction is vital for accurately modeling complex systems.
- Evaluating non-Markovian friction has historically been challenging for intricate physical, chemical, and biological systems.
Purpose of the Study:
- To review recent advancements in friction extraction techniques.
- To discuss the simulation of the generalized Langevin equation.
- To highlight the growing understanding of time-dependent friction's role in complex systems.
Main Methods:
- Development of advanced numerical friction extraction techniques.
- Simulation methods for the generalized Langevin equation.
- Application of these techniques to analyze complex equilibrium and nonequilibrium dynamics.
Main Results:
- Enabling the exploration of time-dependent friction across molecular to macroscopic scales.
- Facilitating the study of complex many-body systems.
- Providing new insights into energy dissipation and dynamics.
Conclusions:
- Recent computational advances have made time-dependent friction tractable for complex systems.
- Understanding friction is key to modeling dynamics in physical, chemical, and biological contexts.
- These methods offer a pathway to deeper insights into many-body dynamics.
Keywords:
coarse grainingdiffusionfrictionnon-Markovian processesnonequilibrium processesprotein foldingMore Related Videos
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