Parametric spin excitations in lateral quantum dots

Details Parametric spin excitations in lateral quantum dots Parametric spin excitations in lateral quantum dots

2007-05-29

arxiv.org/abs/0705.4231v2

Physics

Condensed Matter

Other Condensed Matter

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Scientific paper

10.1103/PhysRevB.76.195307

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.

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