Charging power enhancement at the phase transition of a non-integrable quantum battery

• URL: http://arxiv.org/abs/2603.02819v1
• Date: Tue, 03 Mar 2026 10:15:44 GMT
• Title: Charging power enhancement at the phase transition of a non-integrable quantum battery
• Authors: D. Farina, M. Sassetti, V. Cataudella, D. Ferraro, N. Traverso Ziani,
• Abstract summary: A central question in this direction is whether quantum phase transitions can enhance the charging energy or the power.<n>Here, we investigate a one-dimensional Axial Next-Nearest-Neighbor Ising model as an example of non-integrable quantum battery charged via a quantum-quench protocol.<n>In contrast to integrable cases, we find that criticality in this setting can lead to a pronounced enhancement of the charging power.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Exploiting many-body interaction and critical phenomena to improve the performance of quantum batteries is an emerging and promising line of research. A central question in this direction is whether quantum phase transitions can enhance the charging energy or the power. While preliminary works have addressed this problem in fine-tuned integrable models, its characterization in non-integrable systems remains limited due to the demanding numerical requirements. Here, we investigate a one-dimensional Axial Next-Nearest-Neighbor Ising model as an example of non-integrable quantum battery charged via a quantum-quench protocol. In contrast to integrable cases, we find that criticality in this setting can lead to a pronounced enhancement of the charging power. Our findings inform quantum-battery design of many-qubit systems and are amenable to experimental verification on current quantum-simulation platforms, including neutral-atom arrays.

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