College Physics ›› 2018, Vol. 37 ›› Issue (3): 78-81.doi: 10.16854 /j.cnki.1000-0712.170155
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ZHAN Guo-hui，YU Dian-qiang，WANG Zhi-zhen，ZHANG Lian-lian，GONG Wei-jiang
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Abstract: We study the effect of the PT-symmetric complex potentials on the energy spectrum of one-dimensional non-Hermitian systems.By solving the energy spectrum，we find that potentials can give rise to degeneracy of energy，when the potentials are high enough.For the case of weak potential， the perturbation theory is used to analyze the energy spectrum.It is believed that the results of this work are helpful in understanding the properties of energy pectrum in PT-symmetric non-Hermitian systems.
Key words: PT-symmetry, non-Hermitian system, energy spectrum
ZHAN Guo-hui，YU Dian-qiang，WANG Zhi-zhen，ZHANG Lian-lian，GONG Wei-jiang. The properties of energy spectrum in a non-Hermitian system with PT-symmetry [J].College Physics, 2018, 37(3): 78-81.
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URL: https://dxwl.bnu.edu.cn/EN/10.16854 /j.cnki.1000-0712.170155
https://dxwl.bnu.edu.cn/EN/Y2018/V37/I3/78
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