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Trapped Ion Quantum Computing

Spin qubit gates via phonon buses in electron nanowires

arXiv
Authors: Dylan Lewis, Roopayan Ghosh, Sanjeev Kumar, Michael Pepper, Charles Smith, Karyn Le Hur, Sougato Bose

Year

2026

Paper ID

30862

Status

Preprint

Abstract Read

~2 min

Abstract Words

74

Citations

N/A

Abstract

Scalable architectures for quantum computing using semiconductor quantum dots require interactions between qubits beyond adjacent quantum dots. Here, we propose using nanowires of electrons to mediate the interaction between two quantum dots. Virtual phonons in the linear chain of electrons can mediate an interaction that gives rise to effective spin-spin coupling of the electrons in distant quantum dots. We find coupling strengths of more than 30 MHz for experimentally realisable parameters in GaAs quantum dots.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2026 reference point for readers tracking recent quantum research.
  • Scalable architectures for quantum computing using semiconductor quantum dots require interactions between qubits beyond adjacent quantum dots.

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