Cluster Ising quantum batteries can mimic super-extensive charging power

• URL: http://arxiv.org/abs/2602.15467v1
• Date: Tue, 17 Feb 2026 10:14:04 GMT
• Title: Cluster Ising quantum batteries can mimic super-extensive charging power
• Authors: Anna Pavone, Federico Luigi Cavagnaro, Matteo Carrega, Riccardo Grazi, Dario Ferraro, Niccolò Traverso Ziani,
• Abstract summary: We show that an extended cluster-Ising model, despite belonging to the above category, exhibits super-extensive charging power over wide ranges of system sizes.<n>This remarkable anomalous scaling is due to a corresponding super-extensive growth of the stored energy.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum batteries, miniaturized devices able to store and release energy on demand, are promising both because their intrinsic energy and time scales can match those of other quantum technologies and due to the intriguing possibility of achieving super-extensive charging power. While this enhanced scaling is known to appear in several settings, it is generally believed to be forbidden in Wigner-Jordan integrable spin chains charged via quantum-quench protocols. Here, we show that an extended cluster-Ising model, despite belonging to the above category, exhibits super-extensive charging power over wide ranges of system sizes, reaching up to a thousand spins, in proper parameter regimes. This remarkable anomalous scaling is due to a corresponding super-extensive growth of the stored energy, implying that it occurs at large but finite size and cannot persist in the thermodynamic limit. This phenomenon appears robust against finite-temperature effects.

Related papers

• Charging power enhancement at the phase transition of a non-integrable quantum battery [0.0]
  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.
  arXiv  Detail & Related papers  (2026-03-03T10:15:44Z)
• Super-Extensive Charging Power in the Absence of Global Operations [0.46305101152106515]
  We show that superextensive power scaling is possible only when the interaction-energy distribution becomes increasingly nonuniform.<n>Our results establish g-extensiveness as a necessary resource for quantum advantage in direct-charging protocols.
  arXiv  Detail & Related papers  (2025-11-30T08:56:14Z)
• Charging free fermion quantum batteries [0.0]
  We derive an analytical expression for the energy stored via a double sudden quantum quench in a large class of quantum systems.<n>Results apply to conventional two-band electronic systems across all dimensions and quantum spin chains.
  arXiv  Detail & Related papers  (2025-03-26T10:58:14Z)
• Quantum quench dynamics as a shortcut to adiabaticity [31.114245664719455]
  We develop and test a quantum algorithm in which the incorporation of a quench step serves as a remedy to the diverging adiabatic timescale. Our experiments show that this approach significantly outperforms the adiabatic algorithm.
  arXiv  Detail & Related papers  (2024-05-31T17:07:43Z)
• Beyond-classical computation in quantum simulation [21.45294717016955]
  We show that superconducting quantum annealing processors can generate samples in close agreement with solutions of the Schr"odinger equation.<n>We demonstrate area-law scaling of entanglement in the model quench dynamics of two-, three-, and infinite-dimensional spin glasses.<n>We show that several leading approximate methods based on tensor networks and neural networks cannot achieve the same accuracy as the quantum annealer.
  arXiv  Detail & Related papers  (2024-03-01T19:00:04Z)
• Creating and controlling global Greenberger-Horne-Zeilinger entanglement on quantum processors [20.335679096442604]
  Greenberger-Horne-Zeilinger (GHZ) states play vital roles in the foundation of quantum physics. We propose a general strategy for creating, preserving, and manipulating large-scale GHZ entanglement.
  arXiv  Detail & Related papers  (2024-01-16T11:18:09Z)
• Nonreciprocal Quantum Batteries [0.0]
  We introduce nonreciprocity through reservoir engineering during the charging process, resulting in a substantial increase in energy accumulation. Despite local dissipation, the nonreciprocal approach demonstrates a fourfold increase in battery energy. In a broader context, the concept of nonreciprocal charging has significant implications for sensing, energy capture, and storage technologies.
  arXiv  Detail & Related papers  (2024-01-10T11:50:03Z)
• Disorder-tunable entanglement at infinite temperature [18.552959588855124]
  We build a custom-built superconducting qubit ladder to realize non-thermalizing states with rich entanglement structures. Despite effectively forming an "infinite" temperature ensemble, these states robustly encode quantum information far from equilibrium.
  arXiv  Detail & Related papers  (2023-12-15T21:30:38Z)
• Thermodynamics of adiabatic quantum pumping in quantum dots [50.24983453990065]
  We consider adiabatic quantum pumping through a resonant level model, a single-level quantum dot connected to two fermionic leads. We develop a self-contained thermodynamic description of this model accounting for the variation of the energy level of the dot and the tunnelling rates with the thermal baths.
  arXiv  Detail & Related papers  (2023-06-14T16:29:18Z)
• Universality of critical dynamics with finite entanglement [68.8204255655161]
  We study how low-energy dynamics of quantum systems near criticality are modified by finite entanglement. Our result establishes the precise role played by entanglement in time-dependent critical phenomena.
  arXiv  Detail & Related papers  (2023-01-23T19:23:54Z)
• Quantum Charging Advantage Cannot Be Extensive Without Global Operations [0.0]
  We show that the maximal speedup that can be achieved is extensive in the number of cells, thus offering at most quadratic scaling in the charging power over the classically achievable linear scaling. This concludes the quest on the limits of charging power of quantum batteries and adds to other results in which quantum methods are known to provide at most quadratic scaling over their classical counterparts.
  arXiv  Detail & Related papers  (2021-08-05T10:01:03Z)
• Bounds on charging power of open quantum batteries [0.0]
  We study fundamental bounds on the power of open quantum batteries from the geometric point of view. Our results show that the maximum value of both the stored work and the corresponding power is achieved in the non-Markovian underdamped regime.
  arXiv  Detail & Related papers  (2020-03-22T05:33:08Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.