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Controlling Local Thermal States in Classical Many-Body Systems
P Ben-Abdallah1, A W Rodriguez2
1Laboratoire Charles Fabry, UMR 8501, Institut d'Optique, CNRS, Université Paris-Saclay, 2 Avenue Augustin Fresnel, 91127 Palaiseau Cedex, France.
Physical Review Letters
|January 6, 2023
Summary
Researchers developed methods for actively controlling local thermal states in nonreciprocal systems. This allows for thermal targeting, insulation, and synchronization during relaxation, optimizing temperature control with minimal energy or time.
Area of Science:
- Thermodynamics
- Statistical Mechanics
- Quantum Systems
Background:
- Thermalization in many-body systems arises from complex interactions.
- Controlling local thermal states in nonreciprocal systems is challenging.
- Understanding equilibrium and near-equilibrium dynamics is crucial.
Purpose of the Study:
- To establish theoretical foundations for active control of local thermal states.
- To enable precise manipulation of thermal behavior in arbitrary nonreciprocal systems.
- To explore methods for thermal targeting, insulation, and synchronization.
Main Methods:
- Developing theoretical frameworks for active control.
- Deriving conditions for specific thermal evolutions.
- Analyzing systems near their equilibrium state.
Main Results:
- Demonstrated methods for thermal targeting, insulation, and synchronization.
- Derived conditions for minimal temperature relaxation with minimal energy cost.
- Derived conditions for relaxation to a prescribed temperature in minimum time.
Conclusions:
- Active control of local thermal states is achievable in nonreciprocal systems.
- Theoretical framework provides tools for precise thermal management.
- Applicable to systems exchanging heat radiatively, with potential for broader applications.
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