数学物理学报(英文版) ›› 2017, Vol. 37 ›› Issue (3): 806-835.doi: 10.1016/S0252-9602(17)30039-5

• 论文 • 上一篇    下一篇

LARGE TIME BEHAVIOR OF SOLUTIONS TO 1-DIMENSIONAL BIPOLAR QUANTUM HYDRODYNAMIC MODEL FOR SEMICONDUCTORS

李杏1, 雍燕2   

  1. 1. College of Mathematics and Statistics, Shenzhen University, Shenzhen 518060, China;
    2. College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
  • 收稿日期:2016-02-29 出版日期:2017-06-25 发布日期:2017-06-25
  • 作者简介:Xing LI,E-mail:lixing@szu.edu.cn;Yan YONG,E-mail:yongyan@usst.edu.cn
  • 基金资助:
    X.Li's research was supported in part by NSFC (11301344);Y.Yong's research was supported in part by NSFC (11201301).

LARGE TIME BEHAVIOR OF SOLUTIONS TO 1-DIMENSIONAL BIPOLAR QUANTUM HYDRODYNAMIC MODEL FOR SEMICONDUCTORS

Xing LI1, Yan YONG2   

  1. 1. College of Mathematics and Statistics, Shenzhen University, Shenzhen 518060, China;
    2. College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
  • Received:2016-02-29 Online:2017-06-25 Published:2017-06-25
  • Supported by:
    X.Li's research was supported in part by NSFC (11301344);Y.Yong's research was supported in part by NSFC (11201301).

摘要: In this article, we study the 1-dimensional bipolar quantum hydrodynamic model for semiconductors in the form of Euler-Poisson equations, which contains dispersive terms with third order derivations. We deal with this kind of model in one dimensional case for general perturbations by constructing some correction functions to delete the gaps between the original solutions and the diffusion waves in L2-space, and by using a key inequality we prove the stability of diffusion waves. As the same time, the convergence rates are also obtained.

关键词: Bipolar quantum hydrodynamic, diffusion waves, semiconductor, Euler-Poisson euqations, asymptotic behavior

Abstract: In this article, we study the 1-dimensional bipolar quantum hydrodynamic model for semiconductors in the form of Euler-Poisson equations, which contains dispersive terms with third order derivations. We deal with this kind of model in one dimensional case for general perturbations by constructing some correction functions to delete the gaps between the original solutions and the diffusion waves in L2-space, and by using a key inequality we prove the stability of diffusion waves. As the same time, the convergence rates are also obtained.

Key words: Bipolar quantum hydrodynamic, diffusion waves, semiconductor, Euler-Poisson euqations, asymptotic behavior