Low-Lying States of the A+B-A+B- Coulomb Systems in Two-Dimensional Quantum Dots

Low-Lying States of the A+B-A+B- Coulomb Systems in Two-Dimensional Quantum Dots

XIE Wen-Fang

【期刊名称】《理论物理通讯（英文版）》 【年(卷),期】2001(035)003

【摘要】The features of the low-lying spectra of four-body A+B-A+B- systems have been deduced based on symmetry. Using the method of few-body physics, we calculate the energy spectra of A + B- A + B- systems in a harmonic quantum dot. We find that the biexciton in a two-dimensional quantum dot may have other bound excited states and the quantum mechanical symmetry plays a crucialrole in determining the energy levels and structures of the low-lying states. 【总页数】4页(335-338)

【关键词】few-body physics;A+B-A+B- Coulomb system;symmetry 【作者】XIE Wen-Fang

【作者单位】Department of Physics, Guangzhou University, Guangzhou 510405, China 【正文语种】中文 【中图分类】O4 【相关文献】

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