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Journal of Zhejiang University SCIENCE A 2004 Vol.5 No.7 P.873~877

http://doi.org/10.1631/jzus.2004.0873


Bipolaron in different configuration of quantum confinement


Author(s):  RUAN Yong-hong, CHEN Qing-hu, JIAO Zheng-kuan

Affiliation(s):  Department of Physics, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   ruanyh@css.zju.edu.cn

Key Words:  Bipolaron, Quantum confinement, Quantum wire, Quantum well, Quantum dot, Binding energy


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RUAN Yong-hong, CHEN Qing-hu, JIAO Zheng-kuan. Bipolaron in different configuration of quantum confinement[J]. Journal of Zhejiang University Science A, 2004, 5(7): 873~877.

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author="RUAN Yong-hong, CHEN Qing-hu, JIAO Zheng-kuan",
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DOI - 10.1631/jzus.2004.0873


Abstract: 
The authors used Landau-Pekar variational method to investigate a strong-coupling singlet optical bipolaron in different configuration of quantum confinement. Numerical and analytical results showed that when configuration changes from quantum dot and wire to well, confinement shows different effect on the formation of a bipolaron. In contrast to a bipolaron in a quantum dot or wire, the binding energy of a bipolaron in a quantum well increases with increasing confinement, indicating that confinement favors bipolaron formation in a quantum well.

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