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Updated: May 2, 2026
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Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
Published on: March 6, 2017
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Energy flow in periodic thermodynamics
Matthias Langemeyer1, Martin Holthaus1
1Institut für Physik, Carl von Ossietzky Universität, D-26111 Oldenburg, Germany.
Summary
This study introduces a method to calculate energy dissipation in quantum systems. It highlights the significant role of pseudotransitions in energy flow and suggests quantum heating/cooling strategies.
Area of Science:
- Quantum mechanics
- Thermodynamics
- Condensed matter physics
Background:
- Characterizing energy dissipation in periodically driven quantum systems coupled to heat baths is crucial.
- Understanding steady-state energy flow is essential for quantum thermodynamics.
Purpose of the Study:
- To derive a general expression for computing the energy dissipation rate.
- To analyze the contribution of different transition types to dissipation.
- To explore potential quantum heating and cooling schemes.
Main Methods:
- Derivation of a general expression for energy dissipation rate.
- Analysis of heat baths composed of harmonic oscillators.
- Examination of two analytically solvable model systems.
- Distinguishing between genuine and pseudotransitions.
Main Results:
- A general formula for energy dissipation rate in quantum systems is derived.
- Pseudotransitions significantly contribute to the total energy dissipation.
- The study identifies potential quantum heating and cooling mechanisms.
- Driven quantum systems may occupy multiple Floquet states even at zero temperature.
Conclusions:
- The derived expression provides a tool for quantifying energy dissipation.
- Understanding transition types is key to controlling energy flow.
- The findings open avenues for quantum thermal management and control.
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