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An Analysis of the Symmetry in ABA Coulomb Systems |
| SHI Ting-yun;BAO Cheng-guang |
| Department of Physics, Zhongshan University, Guangzhou 510275 |
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| Cite this article: |
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SHI Ting-yun, BAO Cheng-guang 1998 Chin. Phys. Lett. 15 492-494 |
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Abstract The nodal structures of quantum states of three-body ABA systems composed of two identical fermions and another one with an opposite charge are investigated. We expand the wavefunction in the body frame and show that the effect of symmetry such as rotation, space inversion, and permutation is to impose nodal surfaces on the components of the wavefunction. Based on the nodal surface, a classification of quantum states of ABA systems is presented. It is found that the quantum symmetry plays a crucial role in determing the energy levels and structures of the low-lying states.
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33.15.Bh
14.60.Cd
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Published: 01 July 1998
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| PACS: |
33.15.Bh
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(General molecular conformation and symmetry; stereochemistry)
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14.60.Cd
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(Electrons (including positrons))
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