Second Bound State of Biexcitons in Quantum Dots

Chin. Phys. Lett.

2003, Vol. 20

Issue (1): 121-123 DOI:

Original Articles

Second Bound State of Biexcitons in Quantum Dots

XIE Wen-Fang

Department of Physics, Guangzhou University, Guangzhou 510405

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XIE Wen-Fang 2003 Chin. Phys. Lett. 20 121-123

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Abstract The second bound state of the biexcitons in a quantum dot, with orbital angular momentum L = 1, is reported. By using the method of few-body physics, the binding energy spectra of the second bound state of a biexciton in a GaAs quantum dot with a parabolic confinement have been calculated as a function of the electron-to-hole mass ratio and the quantum dot size. The fact that the biexcitons have a second bound state may aid in the better understanding of their binding mechanism.

Keywords: 73.20.Dx 71.35.Gg 36.10.Dr

Published: 01 January 2003

PACS:	73.20.Dx
	71.35.Gg	(Exciton-mediated interactions)
	36.10.Dr	(Positronium)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2003/V20/I1/0121

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