[PDF] Valley-Free Silicon Fins Caused by Shear Strain | Semantic Scholar (2025)

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@article{Adelsberger2023ValleyFreeSF, title={Valley-Free Silicon Fins Caused by Shear Strain}, author={Christoph Adelsberger and Stefano Bosco and Jelena Klinovaja and Daniel Loss}, journal={Physical Review Letters}, year={2023}, url={https://api.semanticscholar.org/CorpusID:261214382}}
  • C. Adelsberger, S. Bosco, D. Loss
  • Published in Physical Review Letters 25 August 2023
  • Physics, Engineering

Electron spins confined in silicon quantum dots are promising candidates for large-scale quantum computers. However, the degeneracy of the conduction band of bulk silicon introduces additional levels dangerously close to the window of computational energies, where the quantum information can leak. The energy of the valley states -- typically 0.1 meV -- depends on hardly controllable atomistic disorder and still constitutes a fundamental limit to the scalability of these architectures. In this…

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