Application of the Landau-Zener-Stueckelberg-Majorana dynamics in an electrically driven flip of a hole spin

An idea of employing the Landau-Zener-St\"uckelberg-Majorana (LZSM) dynamics to flip a spin of a single ground state hole is introduced and explored by a time-dependent simulation. This configuration interaction study considers a hole confined in a quantum molecule formed in InSb \(\langle111\r...

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Bibliographic Details
Published in:arXiv.org 2017-12
Main Authors: Pasek, Wojciech Julian, Marcelo Zoega Maialle, Degani, Marcos Henrique
Format: Article
Language:English
Subjects:
Computer simulation
Configuration interaction
Electric control
Electric fields
Electric wire
Quantum wires
Spin dynamics
Time dependent analysis
Online Access:Get full text
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Summary:An idea of employing the Landau-Zener-St\"uckelberg-Majorana (LZSM) dynamics to flip a spin of a single ground state hole is introduced and explored by a time-dependent simulation. This configuration interaction study considers a hole confined in a quantum molecule formed in InSb \(\langle111\rangle\) quantum wire by application of an electrostatic potential. An up-down spin-mixing avoided crossing is formed by non-axial terms in the Kohn-Luttinger Hamiltonian and the Dresselhaus spin-orbit one. Manipulation of the system is possible by dynamic change of external vertical electric field, which enables the consecutive driving of the hole through two anticrossings. Moreover, a simple model of the power-law type noise that impedes the precise electric control of the system is included in the form of Random Telegraph Noise to estimate the limitations of the working conditions. We show that in principle the process is possible, but it requires a precise control of parameters of the driving impulse.
ISSN:2331-8422
DOI:10.48550/arxiv.1709.03623