Electric-field-induced interferometric resonance of a one-dimensional spin-orbit-coupled electron
Abstract
We consider a one-dimensional spin-orbit-coupled nanowire quantum dot, driven by external electric and magnetic fields, and theoretically formulate an electric mechanism to interfere its electron orbits. Owing to the existence of spin-orbit coupling and a pulsed electric field, different spin-orbit states are shown to interfere with each other, generating intriguing interference-resonant patterns. We also reveal that an in-plane magnetic field does not affect the strength interval of any neighboring resonant peaks, but contributes a weak shift of each peak, which is sensitive to the direction of the magnetic field. We find that this proposed external-field-controlled scheme should be regarded as a new type of quantum-dot-based interferometry. Finally, this interferometry has an important application in precisely measuring relative experimental parameters, such as the Rashba and Dresselhaus spin-orbit-coupling strengths, as well as the Lande-g factor.
Keywords
Cite
@article{arxiv.1605.02871,
title = {Electric-field-induced interferometric resonance of a one-dimensional spin-orbit-coupled electron},
author = {Jingtao Fan and Yuansen Chen and Gang Chen and Liantuan Xiao and Suotang Jia and Franco Nori},
journal= {arXiv preprint arXiv:1605.02871},
year = {2016}
}