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Symmetry Induced Enhancement in Finite-Time Thermodynamic Trade-Off Relations.
1The University of Tokyo, Department of Applied Physics, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Physical Review Letters
|March 14, 2025
Summary
We developed a symmetry-based framework for open quantum systems, establishing fundamental limits for collective enhancement in finite-time thermodynamics and improving upon superradiance models.
Area of Science:
- Quantum thermodynamics
- Open quantum systems
- Non-equilibrium statistical mechanics
Background:
- Symmetry influences open quantum systems and their dissipative properties.
- Superradiance demonstrates collective enhancement in decay rates due to symmetry.
- Existing frameworks for symmetry in finite-time thermodynamics are limited.
Purpose of the Study:
- To establish a general framework for symmetry's impact on finite-time thermodynamics.
- To derive fundamental limits on collective enhancement rates.
- To explore new models beyond conventional superradiance.
Main Methods:
- Developed a symmetry-based theoretical framework.
- Derived a general upper bound on the average jump rate.
- Constructed a novel open quantum system model.
Main Results:
- Established a general upper bound for the average jump rate, defining thermodynamic speed limits.
- Identified specific symmetry conditions to achieve this bound.
- Demonstrated a model surpassing conventional superradiance enhancement.
Conclusions:
- Symmetry provides a powerful tool for understanding and optimizing finite-time thermodynamic processes.
- The derived framework offers a new perspective on collective enhancement in open quantum systems.
- This work paves the way for designing more efficient quantum heat engines and devices.
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