Novel qubits in hybrid semiconductor–superconductor nanostructures
Abstract
Hybrid semiconductor-superconductor qubits have recently emerged as a promising alternative to traditional platforms, combining material advantages with device-level tunability. A defining feature is their gate-tunable Josephson coupling, enabling superconducting qubit architectures with full electric-field control and offering a path toward scalable, low-crosstalk quantum processors. This approach seeks to merge benefits of superconducting and semiconductor qubits, for instance by encoding quantum information in the spin of a quasiparticle occupying an Andreev bound state, thus combining long coherence times with fast, flexible control. Progress has accelerated through bottom-up engineering of Andreev states in coupled quantum dot arrays, leading to architectures such as minimal Kitaev chains hosting Majorana zero modes. In parallel, Hamiltonian-protected designs aim to enhance resilience against local noise and decoherence by exploiting superconducting phase dynamics and discrete charge or flux degrees of freedom. This article reviews recent theoretical and experimental advances in hybrid qubits, providing an overview of physical mechanisms, device implementations, and emerging architectures, with emphasis on their potential for (topologically) protected quantum information processing. While many designs remain at proof-of-concept stage, rapid progress suggests practical demonstrations may soon be achievable.
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BibTeX
@article{pitavidal2026novel,
title = {{Novel qubits in hybrid semiconductor–superconductor nanostructures}},
author = {Marta Pita‐Vidal and Rubén Seoane Souto and Srijit Goswami and Christian Kraglund Andersen and Georgios Katsaros and Javad Shabani and Ramón Aguado},
journal = {Physics Reports},
year = {2026},
month = nov,
doi = {10.1016/j.physrep.2026.10.002},
url = {https://doi.org/10.1016/j.physrep.2026.10.002},
note = {CC BY},
}
RIS
TY - JOUR
TI - Novel qubits in hybrid semiconductor–superconductor nanostructures
AU - Marta Pita‐Vidal
AU - Rubén Seoane Souto
AU - Srijit Goswami
AU - Christian Kraglund Andersen
AU - Georgios Katsaros
AU - Javad Shabani
AU - Ramón Aguado
PY - 2026
DA - 2026/11/03
JO - Physics Reports
DO - 10.1016/j.physrep.2026.10.002
UR - https://doi.org/10.1016/j.physrep.2026.10.002
AB - Hybrid semiconductor-superconductor qubits have recently emerged as a promising alternative to traditional platforms, combining material advantages with device-level tunability. A defining feature is their gate-tunable Josephson coupling, enabling superconducting qubit architectures with full electric-field control and offering a path toward scalable, low-crosstalk quantum processors. This approach seeks to merge benefits of superconducting and semiconductor qubits, for instance by encoding quantum information in the spin of a quasiparticle occupying an Andreev bound state, thus combining long coherence times with fast, flexible control. Progress has accelerated through bottom-up engineering of Andreev states in coupled quantum dot arrays, leading to architectures such as minimal Kitaev chains hosting Majorana zero modes. In parallel, Hamiltonian-protected designs aim to enhance resilience against local noise and decoherence by exploiting superconducting phase dynamics and discrete charge or flux degrees of freedom. This article reviews recent theoretical and experimental advances in hybrid qubits, providing an overview of physical mechanisms, device implementations, and emerging architectures, with emphasis on their potential for (topologically) protected quantum information processing. While many designs remain at proof-of-concept stage, rapid progress suggests practical demonstrations may soon be achievable.
SN - 0370-1573
SN - 1873-6270
ER -