Phonon-assisted relaxation between hole states in quantum dot molecules

Details Phonon-assisted relaxation between hole states in quantum dot molecules Phonon-assisted relaxation between hole states in quantum dot molecules

2011-10-26

arxiv.org/abs/1110.5935v3

Phys. Rev. B 85, (2012), 041305(R)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.85.041305

We study theoretically phonon-assisted relaxation and inelastic tunneling of holes in a double quantum dot. We derive hole states and relaxation rates from kp Hamiltonians and show that there is a finite distance between the dots where lifetimes of hole states are very long which is related to vanishing tunnel coupling. We show also that the light hole admixture to hole states can considerably affect the hole relaxation rates even though its magnitude is very small.

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