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Fast stable adiabatic charging of open quantum batteries
M A Fasihi1, R Jafarzadeh Bahrbeig1, B Mojaveri1
1Azarbaijan Shahid Madani University, Department of Physics, 53714-161, Tabriz, Iran.
Physical Review. E
|September 16, 2025
Summary
This study explores adiabatic charging for open quantum batteries (QBs) using a general quantum master equation. An optimal charging time maximizes stored energy and ergotropy, especially at low temperatures, while avoiding thermal excitations.
Area of Science:
- Quantum thermodynamics
- Quantum information science
- Condensed matter physics
Background:
- Adiabatic quantum dynamics is crucial for stable quantum battery (QB) charging.
- Previous studies often used phenomenological models for QB charging.
- The adiabatic master equation offers a general, non-phenomenological approach.
Purpose of the Study:
- Investigate adiabatic charging of three-level quantum batteries using the adiabatic quantum master equation formalism.
- Analyze the impact of relaxation and dephasing in the weak-coupling regime.
- Determine the dependence of stored energy, ergotropy, and efficiency on charging time.
Main Methods:
- Utilized the adiabatic quantum master equation formalism for a three-level quantum battery.
- Considered a weak-coupling regime with an Ohmic thermal bath.
- Analyzed charging performance as a function of total evolution time (t_f).
Main Results:
- Short charging times lead to low stored energy and ergotropy due to non-adiabatic evolution.
- An optimal charging time (t_f^opt) exists for full charging and maximum energy extraction at low temperatures.
- Very long charging times reduce performance due to thermal excitations.
Conclusions:
- The adiabatic quantum master equation provides a robust framework for analyzing quantum battery charging.
- Optimizing charging time is critical for efficient energy storage and extraction.
- System-environment coupling and Hamiltonian parameters can be tuned to accelerate charging.
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