Stable and Efficient Charging of Superconducting Capacitively Shunted Flux Quantum Batteries
arXiv:2504.07464 · doi:10.1103/y3qx-cs3r
Abstract
Quantum batteries, as miniature energy storage devices, have sparked significant research interest in recent years. However, achieving rapid and stable energy transfer in quantum batteries while obeying quantum speed limits remains a critical challenge. In this work, we experimentally optimize the charging process by leveraging the unique energy level structure of a superconducting capacitively-shunted flux qubit, using counterdiabatic pulses in the stimulated Raman adiabatic passage. Compared to previous studies, we impose two different norm constraints on the driving Hamiltonian, achieving optimal charging without exceeding the overall driving strength. Furthermore, we experimentally demonstrate a charging process that achieves the quantum speed limit. In addition, we introduce a dimensionless parameter to unify charging speed and stability, offering a universal metric for performance optimization. In contrast to metrics such as charging power and thermodynamic efficiency, the criterion quantitatively captures the stability of ergentropy while also considering the charging speed. Our results highlight the potential of the capacitively-shunted qubit platform as an ideal candidate for realizing three-level quantum batteries and deliver novel strategies for optimizing energy transfer protocols.
17 pages, 10 figures
References in corpus (27)
- Charge insensitive qubit design derived from the Cooper pair box
- QuTiP 2: A Python framework for the dynamics of open quantum systems
- Shortcut to adiabatic passage in two and three level atoms
- Colloquium: Quantum Batteries
- Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit
- Quantum technologies need a Quantum Energy Initiative
- Shortcut to adiabaticity for an interacting Bose-Einstein condensate
- Optimal charging of a superconducting quantum battery
- NMR investigations of quantum battery using star-topology spin systems
- Entanglement, Coherence, and Extractable Work in Quantum Batteries
- Quantum Adiabatic Brachistochrone
- Extended Dicke quantum battery with interatomic interactions and driving field
- Quantum battery of interacting spins with environmental noise
- Cavity-Heisenberg spin chain quantum battery
- Entanglement and work extraction in the central-spin quantum battery
- Beneficial and detrimental entanglement for quantum battery charging
- The thermodynamics of creating correlations: Limitations and optimal protocols
- Three-level Dicke quantum battery
- Initialisation of single spin dressed states using shortcuts to adiabaticity
- Detecting single gravitons with quantum sensing
- A long-lived capacitively shunted flux qubit embedded in a 3D cavity
- Resonator-qutrits quantum battery
- Qutrit quantum battery: comparing different charging protocols
- Performance of a Superconducting Quantum Battery
- Enhancing the performance of an open quantum battery by adjusting its velocity
- Shortcuts to adiabatic state transfer in time-modulated two-level non-Hermitian systems
- Tunable coupling of a quantum phononic resonator to a transmon qubit with flip-chip architecture