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APS » Journals » Phys. Rev. B » Volume 65 » Issue 11
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Phys. Rev. B 65, 113305 (2002) [4 pages]

Anharmonicity-induced polaron relaxation in GaAs/InAs quantum dots

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L. Jacak1, J. Krasnyj2,*, 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

Received 30 June 2001; revised 11 October 2001; published 28 February 2002

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.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.65.113305
DOI:
10.1103/PhysRevB.65.113305
PACS:
73.21.La, 71.38.-k, 03.67.Lx

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

 
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