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2018 , Vol. 37 >Issue 3: 78 - 81

DOI: https://doi.org/10.16854 /j.cnki.1000-0712.170155

The properties of energy spectrum in a non-Hermitian system with PT-symmetry

  • ZHAN Guo-hui ,
  • YU Dian-qiang ,
  • WANG Zhi-zhen ,
  • ZHANG Lian-lian ,
  • GONG Wei-jiang
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  • Department of Physics，College of Sciences，Northeastern University，Shenyang，Liaoning 110819，China

Received date: 2017-03-21

  Revised date: 2017-08-09

  Online published: 2018-03-20

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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

Cite this article

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 . DOI: 10.16854 /j.cnki.1000-0712.170155

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