Acta mathematica scientia,Series A ›› 2025, Vol. 45 ›› Issue (6): 1791-1805.

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Normalized Solutions to the Schrödinger Equation with Forcing Perturbation Term

Huifang Jia*(), Xiangyi Ye   

  1. School of Mathematics and Statistics, Guangdong University of Technology, Guangzhou 510520
  • Received:2025-02-05 Revised:2025-07-25 Online:2025-12-26 Published:2025-11-18
  • Contact: Huifang Jia E-mail:hf_jia@mails.ccnu.edu.cn
  • Supported by:
    NSFC(12471103);Guangdong Basic and Applied Basic Research Foundation of China(2024A1515012370)

Abstract:

This paper employs the constrained variational method to study the existence and qualitative properties of the normalized solutions to the Schrödinger equation with a partially confining potential and repulsive perturbation term. Specifically, it addresses the physically significant three dimensional cubic-quintic nonlinear case, which corresponds to the limiting situation of the cigar-shaped model for Bose-Einstein condensates (BEC) with a defocusing quintic nonlinear term. Furthermore, the stability of the corresponding standing wave solutions for the related time-dependent problem is also discussed.

Key words: Schr?dinger equation, normalized solution, repulsive perturbation term, stability

CLC Number: 

  • O175.23
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