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Open Quantum Systems Decoherence Quantum Simulation

Bounds on Atomistic Disorder for Scalable Electron Shuttling

arXiv
Authors: Raphaël J. Prentki, Pericles Philippopoulos, Mohammad Reza Mostaan, Félix Beaudoin

Year

2025

Paper ID

51890

Status

Preprint

Abstract Read

~2 min

Abstract Words

79

Citations

N/A

Abstract

Electron shuttling is emerging as a key enabler of scalable silicon spin-qubit quantum computing, but fidelities are limited by atomistic disorder. We introduce a multiscale simulation framework combining time-dependent finite-element electrostatics and atomistic tight-binding to capture the impact of random alloying and interface roughness on the valley splitting and phase of shuttled electrons. We find that shuttling fidelities are strongly suppressed by interface roughness, with a sharp anomaly near the atomic-layer scale, setting quantitative guidelines to realize scalable shuttling.

Why This Paper Matters

  • This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
  • It adds a 2025 reference point for readers tracking recent quantum research.
  • Electron shuttling is emerging as a key enabler of scalable silicon spin-qubit quantum computing, but fidelities are limited by atomistic disorder.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2510.03113 [2] arXiv https://arxiv.org/abs/2510.03113 [3] Publisher https://arxiv.org/abs/2510.03113

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