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Spin Qubits Silicon Quantum Computing Superconducting Qubits Topological Quantum Computing

Andreev spin qubits based on the helical edge states of magnetically doped two-dimensional topological insulators

arXiv
Authors: Edoardo Latini, Fausto Rossi, Fabrizio Dolcini

Year

2026

Paper ID

3110

Status

Preprint

Abstract Read

~2 min

Abstract Words

87

Citations

0

Abstract

We show that Andreev spin qubits can be realized in a Josephson junction based on the helical edge states of a two-dimensional topological insulator (quantum spin Hall system) proximized by superconducting films, in the presence of magnetic doping. We demonstrate that the electrical dipole transitions between the Andreev spin states induced by the magnetic doping can be harnessed to optically manipulate the Andreev spin qubit by microwave radiation pulses. We numerically simulate the realization of NOT and Hadamard quantum logic gates, and discuss implementations in realistic setups.

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  • This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
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  • We show that Andreev spin qubits can be realized in a Josephson junction based on the helical edge states of a two-dimensional topological insulator (quantum spin Hall system)...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2601.22226 [2] arXiv https://arxiv.org/abs/2601.22226 [3] Publisher https://arxiv.org/abs/2601.22226

Local Citation Graph (Related-Paper Links)

Current Paper #3110 #78837 TLS loss in superconducting res... #78829 Graphene double quantum dot as ... #78817 Modelling Josephson Junctions w... #78809 A quasiparticle-protected super...

External citation index: OpenAlex citation signal • updated 2026-10-22 01:21:54

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