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

Abstract

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.

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

References in corpus (2)

• Allowed and forbidden transitions in artificial hydrogen and helium atoms
• Molecular phases in coupled quantum dots

Cited by in corpus (7)

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• Phonon-induced electron relaxation in weakly-confined single and coupled quantum dots
• Reduced electron relaxation rate in multi-electron quantum dots
• Oscillatory spin relaxation rates in quantum dots
• Effect of the Coulomb interaction on the electron relaxation of weakly-confined quantum dot systems
• Spin relaxation rates in quasi-one-dimensional coupled quantum dots
• Optimal generation of indistinguishable photons from non-identical artificial molecules