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Genuine quantum advantage in non-linear bosonic quantum batteries

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arxiv 2409.08627 v2 pith:AWJB2LMH submitted 2024-09-13 quant-ph cond-mat.mes-hall

Gian Marcello Andolina , Vittoria Stanzione , Vittorio Giovannetti , Marco Polini This is my paper · ORCID
classification quant-phcond-mat.mes-hall
keywords quantumadvantagebatterygenuinemodeldisplaysnon-linearbatteries
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Finding a quantum battery model that displays a genuine quantum advantage, while being prone to experimental fabrication, is an extremely challenging task. In this Letter we propose a deceptively simple quantum battery model that displays a genuine quantum advantage, saturating the quantum speed limit. It consists of two harmonic oscillators (the charger and the battery), coupled during the non-equilibrium charging dynamics by a non-linear interaction. We first present the model, then certify the genuine quantum advantage, and finally briefly discuss how the battery can be fabricated through the use of superconducting circuits.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Gaussian Open Quantum Dynamics and Isomorphism to Superconformal Symmetry

    quant-ph 2025-07 conditional novelty 7.0 of 10

    The Gaussian-preserving superoperator algebra for n bosonic modes is R^{2n^2+3n} semidirect gl(2n,R), giving an exact Wigner-function solution of quadratic Redfield dynamics and an isomorphism to the 3D N=1 superconfo...

  2. Hamiltonian $k$-Locality is the Key Resource for Powerful Quantum Battery Charging

    quant-ph 2025-01 reject novelty 6.0 of 10

    The paper proposes the bound |P(t)| ≤ 12 g k q ||H_C|| for instantaneous charging power of a quantum battery, depending on charger/battery locality (k,q) and per-site energy g.

  3. Floquet driven long-range interactions induce super-extensive scaling in quantum batteries

    quant-ph 2024-12 conditional novelty 6.0 of 10

    Floquet-driven long-range interacting spin chains can charge quantum batteries with power scaling super-linearly with system size, but only for moderate sizes and in specific parameter regimes, as shown by an upper-bo...

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