Anharmonicity-induced polaron relaxation in GaAs/InAs quantum dots

L. Jacak; J. Krasnyj; D. Jacak; P. Machnikowski

doi:10.1103/PhysRevB.65.113305

Anharmonicity-induced polaron relaxation in GaAs/InAs quantum dots

L. Jacak, J. Krasnyj, D. Jacak, and P. Machnikowski

Phys. Rev. B 65, 113305 – Published 28 February 2002

Abstract

The anharmonicity-induced relaxation of a polaron in a quantum dot is analyzed using the Davydov diagonalization method, including the coherent renormalization of the relevant third-order phonon interaction. The resulting relaxation time for a small GaAs/InAs self-assembled quantum dot turns out to be a few times longer than that found previously by a perturbative method.

Received 30 June 2001

DOI:https://doi.org/10.1103/PhysRevB.65.113305

Authors & Affiliations

L. Jacak¹, J. Krasnyj^2,*, D. Jacak³, and P. Machnikowski¹

¹Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
²Institute of Mathematics, University of Opole, Oleska 48, 45-051 Opole, Poland
³Institute of Mathematics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

^*On leave from Institute of Physics, Odessa University, Ukraine.

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Vol. 65, Iss. 11 — 15 March 2002

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covering condensed matter and materials physics