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Transient temperature dynamics of reservoirs connected through an open quantum system
I V Vovchenko1, A A Zyablovsky2, A A Pukhov3
1Moscow Institute of Physics and Technology, 9 Institutskiy pereulok, Dolgoprudny 141700, Moscow region, Russia and Kotelnikov Institute of Radioengineering and Electronics, Mokhovaya 11-7, Moscow 125009, Russia.
Physical Review. E
|May 17, 2024
Summary
This study explores how open quantum systems influence multiple reservoirs. Researchers found that reservoir temperatures can change non-monotonically, offering new ways to manage energy flow in nanoscale systems.
Area of Science:
- Quantum physics
- Thermodynamics
- Quantum optics
Background:
- Open quantum systems are crucial in quantum optics, biology, and thermodynamics.
- The Born approximation often neglects system-to-reservoir influence, but this is insufficient for long-time or mesoscopic reservoir dynamics.
Purpose of the Study:
- Investigate transient dynamics of multiple bosonic reservoirs coupled via an open quantum system.
- Analyze the temporal evolution of reservoir temperatures during relaxation to equilibrium.
Main Methods:
- Employed an adiabatic approach to model the system.
- Studied the influence of dissipative rates and initial temperatures on reservoir dynamics.
Main Results:
- Observed diverse temperature dynamics, highly dependent on dissipative rates and initial conditions.
- Demonstrated non-monotonic temperature behavior for both hottest and coldest reservoirs.
- Identified scenarios where initially intermediate-temperature reservoirs become extreme.
Conclusions:
- Reservoir temperature dynamics are complex and can exhibit non-monotonic behavior.
- Findings provide insights into energy flow management in mesoscale and nanoscale systems.
- The study highlights the importance of considering system-to-reservoir influence in certain quantum dynamics scenarios.
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