Stable high-dimensional solitons in nonlocal competing cubic-quintic nonlinear media. (1st February 2022)

• Record Type: Journal Article
• Authors: Zhou, Qi-ying; Li, Hui-jun
• Is Part Of: Communications in theoretical physics. Volume 74:Number 2(2022)
• Publication Date: 2022-02-01
• Subjects: nonlocal media -- competing cubic-quintic nonlinearity -- dipole soliton -- quadrupole soliton; Physics -- Periodicals; 530.105
• DOI: 10.1088/1572-9494/ac42c1
• Languages: English
• ISSNs: 0253-6102

Abstract

Abstract: We find and stabilize high-dimensional dipole and quadrupole solitons in nonlocal competing cubic-quintic nonlinear media. By adjusting the propagation constant, cubic, and quintic nonlinear coefficients, the stable intervals for dipole and quadrupole solitons that are parallel to the x -axis and those after rotating 45° counterclockwise around the origin of coordinate are found. For the dipole solitons and those after rotation, their stability is controlled by the propagation constant, the coefficients of cubic and quintic nonlinearity. The stability of quadrupole solitons is controlled by the propagation constant and the coefficient of cubic nonlinearity, rather than the coefficient of quintic nonlinearity, though there is a small effect of the quintic nonlinear coefficient on the stability. Our proposal may provide a way to generate and stabilize some novel high-dimensional nonlinear modes in a nonlocal system.