Spin and tunneling dynamics in an asymmetrical double quantum dot with spin - orbit coupling

Autor:	Singh, Madhav, Jha, Pradeep K, Bhattacherjee, Aranya B
Rok vydání:	2017
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics
Druh dokumentu:	Working Paper
DOI:	10.1063/1.4985797
Popis:	In this article we study the spin and tunneling dynamics as a function of magnetic field in a one-dimensional GaAs double quantum dot with both the Dresselhaus and Rashba spin-orbit coupling. In particular we consider different spatial widths for the spin-up and spin-down electronic states. We find that the spin dynamics is a superposition of slow as well as fast Rabi oscillations. It is found that the Rashba interaction strength as well as the external magnetic field strongly modifies the slow Rabi oscillations which is particularly useful for single qubit manipulation for possible quantum computer applications. Comment: 14 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1705.05395 Zobrazit plný text záznamu View this record from Arxiv