Phonon-induced decay of the electron spin in quantum dots

Vitaly N. Golovach; Alexander Khaetskii; Daniel Loss

doi:10.1103/PhysRevLett.93.016601

Phonon-induced decay of the electron spin in quantum dots

Vitaly N. Golovach^*
, Alexander Khaetskii
, Daniel Loss

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

415 Scopus citations

Abstract

The analysis of spin relaxation and decoherence on GaAs quantum dot due to spin-orbit (SO) interaction, was investigated. An effective hamiltonian which includes the electron spin to phonons or any other function of the dot potential was derived. It was found that for the Dresselhaus and Rashba SO couplings, the effective B field can have only fluctuations transverse of the applied B field. The results show that the spin decay was drastically suppressed for certain B-field directions and ratios of SO coupling constants.

Original language	English
Article number	016601
Pages (from-to)	016601-1-016601-4
Journal	Physical Review Letters
Volume	93
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.93.016601
State	Published - 2 Jul 2004
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.93.016601

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title = "Phonon-induced decay of the electron spin in quantum dots",

abstract = "The analysis of spin relaxation and decoherence on GaAs quantum dot due to spin-orbit (SO) interaction, was investigated. An effective hamiltonian which includes the electron spin to phonons or any other function of the dot potential was derived. It was found that for the Dresselhaus and Rashba SO couplings, the effective B field can have only fluctuations transverse of the applied B field. The results show that the spin decay was drastically suppressed for certain B-field directions and ratios of SO coupling constants.",

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AU - Golovach, Vitaly N.

AU - Khaetskii, Alexander

AU - Loss, Daniel

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Y1 - 2004/7/2

N2 - The analysis of spin relaxation and decoherence on GaAs quantum dot due to spin-orbit (SO) interaction, was investigated. An effective hamiltonian which includes the electron spin to phonons or any other function of the dot potential was derived. It was found that for the Dresselhaus and Rashba SO couplings, the effective B field can have only fluctuations transverse of the applied B field. The results show that the spin decay was drastically suppressed for certain B-field directions and ratios of SO coupling constants.

AB - The analysis of spin relaxation and decoherence on GaAs quantum dot due to spin-orbit (SO) interaction, was investigated. An effective hamiltonian which includes the electron spin to phonons or any other function of the dot potential was derived. It was found that for the Dresselhaus and Rashba SO couplings, the effective B field can have only fluctuations transverse of the applied B field. The results show that the spin decay was drastically suppressed for certain B-field directions and ratios of SO coupling constants.

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DO - 10.1103/PhysRevLett.93.016601

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Phonon-induced decay of the electron spin in quantum dots

Abstract

ASJC Scopus subject areas

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