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Improving quantum-battery charging via unidirectional quantum jumps to metastable state
Ewelina Lange1, Grzegorz Chimczak2, Anna Kowalewska-Kudłaszyk2
1Institute of Spintronics and Quantum Information, Faculty of Physics and Astronomy, Adam Mickiewicz University, 61-614, Poznan, Poland. ewelan@amu.edu.pl.
Scientific Reports
|June 16, 2026
Summary
Quantum jumps typically dissipate energy in quantum batteries. This study shows how controlled quantum jumps can constructively charge a quantum battery, improving energy storage and extraction efficiency.
Area of Science:
- Quantum physics
- Quantum energy storage
- Atomic systems
Background:
- Quantum jumps usually cause energy dissipation in quantum batteries.
- This dissipation hinders charging and reduces extractable energy due to decoherence.
Purpose of the Study:
- To propose a novel quantum battery design using three-level atoms.
- To investigate controlling quantum jumps for constructive energy storage.
Main Methods:
- Utilizing a three-level atomic system in a Λ configuration.
- Restricting spontaneous atomic transitions to a metastable state.
- Suppressing decay to the ground state.
Main Results:
- Controlled quantum jumps constructively drive the battery to a fully charged state.
- The entire stored energy becomes extractable.
- The charging protocol duration is significantly shortened.
Conclusions:
- Quantum jumps can be harnessed for efficient quantum battery charging.
- This approach enhances energy storage capacity and extractability.
- The proposed method offers a promising direction for quantum energy technologies.
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