Polaron Relaxation In A Quantum Dot Due To Anharmonic Coupling Within A Mean-Field Approach

T. Stauber; M. I. Vasilevskiy; S. S. Makler; E. V. Anda

doi:10.1063/1.3295407

Polaron Relaxation In A Quantum Dot Due To Anharmonic Coupling Within A Mean-Field Approach

T. Stauber, M. I. Vasilevskiy, S. S. Makler, E. V. Anda

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

We study the electronic relaxation in a quantum dot (QD) within the polaron approach, by focusing on the reversible anharmonic decay of longitudinal optical (LO) phonons (forming the polaron) into longitudinal acoustic (LA) phonons. We obtain an effective decay channel for the electronic (or excitonic) polaron states, with a characteristic time constant which is 2-3 orders of magnitude smaller than previous predictions based on the Fermi's Golden Rule.

Original language	English
Title of host publication	PHYSICS OF SEMICONDUCTORS
Subtitle of host publication	29th International Conference, ICPS 29
Editors	Marília J. Caldas, Nelson Studart
Pages	277-278
DOIs	https://doi.org/10.1063/1.3295407
Publication status	Published - Jul 2008
Externally published	Yes
Event	29th International Conference on Physics of Semiconductors (ICPS 29) - Rio de Janeiro, Brazil Duration: 27 Jul 2008 → 1 Aug 2008

Publication series

Name	AIP Conference Proceedings
Volume	1199
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	29th International Conference on Physics of Semiconductors (ICPS 29)
Country/Territory	Brazil
City	Rio de Janeiro
Period	27/07/08 → 1/08/08

Research Keywords

Anharmonic decay
Semiconductor quantum dot
electron-phonon interaction

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@inproceedings{954c085a7af94f518b6432b3e5c26637,

title = "Polaron Relaxation In A Quantum Dot Due To Anharmonic Coupling Within A Mean-Field Approach",

abstract = "We study the electronic relaxation in a quantum dot (QD) within the polaron approach, by focusing on the reversible anharmonic decay of longitudinal optical (LO) phonons (forming the polaron) into longitudinal acoustic (LA) phonons. We obtain an effective decay channel for the electronic (or excitonic) polaron states, with a characteristic time constant which is 2-3 orders of magnitude smaller than previous predictions based on the Fermi's Golden Rule.",

keywords = "Anharmonic decay, Semiconductor quantum dot, electron-phonon interaction",

author = "T. Stauber and Vasilevskiy, {M. I.} and Makler, {S. S.} and Anda, {E. V.}",

year = "2008",

month = jul,

doi = "10.1063/1.3295407",

language = "English",

isbn = "9780735407367",

series = "AIP Conference Proceedings",

pages = "277--278",

editor = "Caldas, {Mar{\'i}lia J.} and Nelson Studart",

booktitle = "PHYSICS OF SEMICONDUCTORS",

note = "29th International Conference on Physics of Semiconductors (ICPS 29) ; Conference date: 27-07-2008 Through 01-08-2008",

}

Stauber, T, Vasilevskiy, MI, Makler, SS & Anda, EV 2008, Polaron Relaxation In A Quantum Dot Due To Anharmonic Coupling Within A Mean-Field Approach. in MJ Caldas & N Studart (eds), PHYSICS OF SEMICONDUCTORS: 29th International Conference, ICPS 29. AIP Conference Proceedings, vol. 1199, pp. 277-278, 29th International Conference on Physics of Semiconductors (ICPS 29), Rio de Janeiro, Brazil, 27/07/08. https://doi.org/10.1063/1.3295407

Polaron Relaxation In A Quantum Dot Due To Anharmonic Coupling Within A Mean-Field Approach. / Stauber, T.; Vasilevskiy, M. I.; Makler, S. S. et al.
PHYSICS OF SEMICONDUCTORS: 29th International Conference, ICPS 29. ed. / Marília J. Caldas; Nelson Studart. 2008. p. 277-278 (AIP Conference Proceedings; Vol. 1199).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

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AU - Vasilevskiy, M. I.

AU - Makler, S. S.

AU - Anda, E. V.

PY - 2008/7

Y1 - 2008/7

N2 - We study the electronic relaxation in a quantum dot (QD) within the polaron approach, by focusing on the reversible anharmonic decay of longitudinal optical (LO) phonons (forming the polaron) into longitudinal acoustic (LA) phonons. We obtain an effective decay channel for the electronic (or excitonic) polaron states, with a characteristic time constant which is 2-3 orders of magnitude smaller than previous predictions based on the Fermi's Golden Rule.

AB - We study the electronic relaxation in a quantum dot (QD) within the polaron approach, by focusing on the reversible anharmonic decay of longitudinal optical (LO) phonons (forming the polaron) into longitudinal acoustic (LA) phonons. We obtain an effective decay channel for the electronic (or excitonic) polaron states, with a characteristic time constant which is 2-3 orders of magnitude smaller than previous predictions based on the Fermi's Golden Rule.

KW - Anharmonic decay

KW - Semiconductor quantum dot

KW - electron-phonon interaction

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BT - PHYSICS OF SEMICONDUCTORS

A2 - Caldas, Marília J.

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ER -

Polaron Relaxation In A Quantum Dot Due To Anharmonic Coupling Within A Mean-Field Approach

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