aiqbench analysis
This is a theoretical study of a solid-state quantum battery built from a graphene-based Josephson junction coupled to a resonator. The authors argue that extra longitudinal couplings beyond the standard Dicke model can improve energy storage within certain parameter ranges, and they propose a second charging method based on tuning the superconducting phase. Readers should treat this as early-stage modelling, not a demonstrated device, but it links quantum energy-storage concepts to superconducting circuit hardware that also underpins qubits.
Quantum Batteries in two-dimensional material-based Josephson Junctions
arXiv:2605.22582v2 Announce Type: replace-cross Abstract: We investigate the solid-state implementation of a Dicke-like quantum battery consisting of a two-dimensional material-based Josephson junction inductively coupled to a resonator, using graphene as a representative example. In this configuration, Andreev bound states naturally act as non-interacting, energetically non-degenerate two-level systems, and the setup allows for both single-photon and two-photon resonant processes. The coupling between the LC-circuit flux and the supercurrent through the junction gives rise to peculiar longitudinal interaction terms that have no counterpart in the conventional Dicke model. We demonstrate that these additional couplings can enhance energy storage for a proper range of parameters. The proposed architecture also enables an alternative, but comparable, charging protocol that relies on tuning the superconducting phase difference across the junction.
Abstract:We investigate the solid-state implementation of a Dicke-like quantum battery consisting of a two-dimensional material-based Josephson junction inductively coupled to a resonator, using graphene as a representative example. In this configuration, Andreev bound states naturally act as non-interacting, energetically non-degenerate two-level systems, and the setup allows for both single-photon and two-photon resonant processes. The coupling between the LC-circuit flux and the supercurrent through the junction gives rise to peculiar longitudinal interaction terms that have no counterpart in the conventional Dicke model. We demonstrate that these additional couplings can enhance energy storage for a proper range of parameters. The proposed architecture also enables an alternative, but comparable, charging protocol that relies on tuning the superconducting phase difference across the junction.
Mesoscale and Nanoscale Physics (cond-mat.mes-hall); Superconductivity (cond-mat.supr-con); Quantum Physics (quant-ph)
arXiv:2605.22582 [cond-mat.mes-hall]
(or arXiv:2605.22582v2 [cond-mat.mes-hall] for this version)
https://doi.org/10.48550/arXiv.2605.22582 Focus to learn more arXiv-issued DOI via DataCite
Quantum Sci. Technol. 11 045094 (2026)
https://doi.org/10.1088/2058-9565/aeb3ab Focus to learn more DOI(s) linking to related resources
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Full text under the publisher's open licence · 234 words