Synergistic charging of a quantum battery via Dzyaloshinskii-Moriya interaction and non-Markovian noise
Abstract
Protecting quantum batteries from environmental noise remains a challenge. Using exact Burshtein-Kubo equations, we study a two-spin quantum battery with Dzyaloshinskii-Moriya (DM) coupling under indepen dent local longitudinal random telegraph noise (RTN). At a fixed effective noise scale, the DM-assisted slow switching protocol yields a superadditive transient ergotropy gain and near-maximal ergotropy during the initial charging stage, while the no-DM slow-switching control reaches comparable ergotropy only in a later revival. A finite superadditive region persists at fixed RTN amplitude, with protocol-dependent location and gain. In the Ising model, the enhancement is nonmonotonic in DM strength, with intermediate coupling giving near-optimal performance. Dressed-channel analysis associates this enhancement with changes in transition frequencies and longitudinal-noise matrix elements that reduce slow-RTN spectral weight. Superadditivity also persists in the tested anisotropic XY model.
Versions
Related
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BibTeX
@misc{zhang2026synergistic,
title = {{Synergistic charging of a quantum battery via Dzyaloshinskii-Moriya interaction and non-Markovian noise}},
author = {Si-Yu Zhang and Meng-Long Song and Hai-Tao Dong and Xue-Ke Song and Liu Ye and Dong Wang},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.21928},
eprint = {2610.21928},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.21928},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Synergistic charging of a quantum battery via Dzyaloshinskii-Moriya interaction and non-Markovian noise
AU - Si-Yu Zhang
AU - Meng-Long Song
AU - Hai-Tao Dong
AU - Xue-Ke Song
AU - Liu Ye
AU - Dong Wang
PY - 2026
DA - 2026/10/28
PB - arXiv
DO - 10.48550/arxiv.2610.21928
UR - https://arxiv.org/abs/2610.21928
AB - Protecting quantum batteries from environmental noise remains a challenge. Using exact Burshtein-Kubo equations, we study a two-spin quantum battery with Dzyaloshinskii-Moriya (DM) coupling under indepen dent local longitudinal random telegraph noise (RTN). At a fixed effective noise scale, the DM-assisted slow switching protocol yields a superadditive transient ergotropy gain and near-maximal ergotropy during the initial charging stage, while the no-DM slow-switching control reaches comparable ergotropy only in a later revival. A finite superadditive region persists at fixed RTN amplitude, with protocol-dependent location and gain. In the Ising model, the enhancement is nonmonotonic in DM strength, with intermediate coupling giving near-optimal performance. Dressed-channel analysis associates this enhancement with changes in transition frequencies and longitudinal-noise matrix elements that reduce slow-RTN spectral weight. Superadditivity also persists in the tested anisotropic XY model.
ER -