Mapping donor electron wave function deformations at sub-Bohr orbit resolution

TL;DR

This paper introduces a method to map subtle deformations in donor electron wave functions in silicon nano-structures with sub-Bohr radius resolution, advancing quantum wave function engineering for nanoelectronics.

Contribution

It presents a novel technique to measure electron wave function deformations via hyperfine tensor measurements using 29Si impurities.

Findings

Detection of wave function deformation at sub-Bohr radius resolution

Validation of hyperfine tensor measurement as a tool for wave function mapping

Potential applications in quantum nanoelectronics design

Abstract

Quantum wave function engineering of dopant-based Si nano-structures reveals new physics in the solid-state, and is expected to play a vital role in future nanoelectronics. Central to any fundamental understanding or application is the ability to accurately characterize the deformation of the electron wave functions in these atom-based structures through electromagnetic field control. We present a method for mapping the subtle changes that occur in the electron wave function through the measurement of the hyperfine tensor probed by 29Si impurities. Our results show that detecting the donor electron wave function deformation is possible with resolution at the sub-Bohr radius level.