Algebraic power scaling in a slowly-quenched bosonic quantum battery

• URL: http://arxiv.org/abs/2511.23081v1
• Date: Fri, 28 Nov 2025 11:13:11 GMT
• Title: Algebraic power scaling in a slowly-quenched bosonic quantum battery
• Authors: Donny Dwiputra, Ahmad R. T. Nugraha, Sasfan A. Wella, Freddy Permana Zen,
• Abstract summary: We show that a slow quench in the interaction between a coherently driven quadratic oscillator battery and a charger system leads to faster charging.<n>Such a quench suppresses coherent energy oscillations between the battery and the charger, allowing an unbounded increase in power.<n>We also show that the temporal extensive scaling occurs in a broader context by mapping the system to a coherently driven Tavis-Cumming exponents battery.
• Score: 0.13999481573773073
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Bosonic modes provide a promising platform for quantum batteries as a result of their unbounded energy spectrum. However, the energy that can be stored during a coherent charging process is limited due to coherent oscillations between the charger and battery. In this Letter, we show that by introducing a slow quench in the interaction between a coherently driven quadratic oscillator battery and a charger system, the maximum battery power ($P_{B,m}$) scales algebraically with the quench duration ($τ_Q$), i.e., $P_{B,m} \propto τ_Q^α$, where $0<α\leq2$ is a function of the quench ramp exponent. This finding implies that, counterintuitively, slower quenches lead to faster charging. Such a quench suppresses coherent energy oscillations between the battery and the charger, allowing an unbounded increase in power. Furthermore, we discuss the effect of charger dissipation, which imposes a finite limit on the maximum power. We also show that the temporal extensive scaling occurs in a broader context by mapping the system to a coherently driven Tavis-Cummings battery.

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