Field-controlled suppression of phonon-induced transitions in coupled quantum dots

Details Field-controlled suppression of phonon-induced transitions in coupled quantum dots Field-controlled suppression of phonon-induced transitions in coupled quantum dots

2004-10-25

arxiv.org/abs/cond-mat/0410627v1

Appl. Phys. Lett. 85, 4729 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

REVTex4 class, 6 pages, 3 figures, to be published in Applied Physics Letters

Scientific paper

10.1063/1.1818345

We calculate the longitudinal-acoustic phonon scattering rate for a vertical double quantum dot system with weak lateral confinement and show that a strong modulation of the single-electron excited states lifetime can be induced by an external magnetic or electric field. The results are obtained for typical realistic devices using a Fermi golden rule approach and a three-dimensional description of the electronic quantum states.

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