Parametric spin excitations in lateral quantum dots

Autor:	Walls, Jamie D.
Rok vydání:	2007
Předmět:	Condensed Matter - Other Condensed Matter Condensed Matter - Mesoscale and Nanoscale Physics
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.76.195307
Popis:	In this work, the spin dynamics of a single electron under parametric modulation of a lateral quantum dot's electrostatic potential in the presence of spin-orbit coupling is investigated. Numerical and theoretical calculations demonstrate that, by squeezing and/or moving the electron's wave function, spin rotations with Rabi frequencies on the order of tens of megahertz can be achieved with experimentally accessible parameters in both parabolic and square lateral quantum dots. Applications of parametric excitations for determining spin-orbit coupling parameters and for increasing the spin polarization in the electronic ground are demonstrated. Comment: correct font in figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0705.4231 Zobrazit plný text záznamu View this record from Arxiv