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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