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arXiv · 2505.23901

Long-range spin transport in asymmetric quadruple quantum dots configurations

David Fernández-Fernández·Johannes C. Bayer·Rolf J. Haug·Gloria Platero
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Abstract

We theoretically investigate long-range coherent charge transport in linear quadruple quantum dot (QQD) arrays under reduced symmetry configurations. Employing a master equation approach, we identify precise resonant conditions that enable minimal occupation of intermediate dots, thereby facilitating long-range transfer between distant sites. Our results highlight the critical role of parameter asymmetry and coherent tunneling mechanisms in achieving efficient quantum state transfer.

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David Fernández-Fernández, Johannes C. Bayer, Rolf J. Haug, Gloria Platero. 2025-05-29. Long-range spin transport in asymmetric quadruple quantum dots configurations. https://doi.org/10.1038/s42005-025-02319-3

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