Journal
PHYSICS LETTERS A
Volume 372, Issue 23, Pages 4323-4326Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2008.03.030
Keywords
optical absorption; parabolic quantum dot; density-matrix approach
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Dipole-allowed optical absorption in a parabolic quantum dot with two electrons are studied by using the exact diagonalization techniques and the compact density-matrix approach. Numerical results are presented for typical GaAs parabolic quantum dots. The results show that the total optical absorption coefficient of two electrons in quantum dot is about five times smaller than that of one electron in quantum dot. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.
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