Valley interference and spin exchange at the atomic scale in silicon

B. Voisin; J. Bocquel; A. Tankasala; M. Usman; J. Salfi; R. Rahman; M. Y. Simmons; L. C. L. Hollenberg; S. Rogge

doi:10.1038/s41467-020-19835-1

Nature Communications (Nov 2020)

Valley interference and spin exchange at the atomic scale in silicon

B. Voisin,
J. Bocquel,
A. Tankasala,
M. Usman,
J. Salfi,
R. Rahman,
M. Y. Simmons,
L. C. L. Hollenberg,
S. Rogge

Affiliations

B. Voisin: Centre for Quantum Computation and Communication Technology, School of Physics, The University of New South Wales
J. Bocquel: Centre for Quantum Computation and Communication Technology, School of Physics, The University of New South Wales
A. Tankasala: Electrical and Computer Engineering Department, Purdue University
M. Usman: Centre for Quantum Computation and Communication Technology, School of Physics, The University of Melbourne
J. Salfi: Centre for Quantum Computation and Communication Technology, School of Physics, The University of New South Wales
R. Rahman: Electrical and Computer Engineering Department, Purdue University
M. Y. Simmons: Centre for Quantum Computation and Communication Technology, School of Physics, The University of New South Wales
L. C. L. Hollenberg: Centre for Quantum Computation and Communication Technology, School of Physics, The University of Melbourne
S. Rogge: Centre for Quantum Computation and Communication Technology, School of Physics, The University of New South Wales

DOI: https://doi.org/10.1038/s41467-020-19835-1
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 11

Abstract

Read online

Coupled donor wavefunctions in silicon are spatially resolved to evidence valley interference processes. An atomic-scale understanding of the interplay between interference, envelope anisotropy and crystal symmetries unveils a placement strategy compatible with existing technology where the exchange is insensitive to interference.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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