Eur. Phys. J. Plus (2018) 133: 124
https://doi.org/10.1140/epjp/i2018-11959-2

Regular Article

Bright-type and dark-type vector solitons of the (2 + 1)-dimensional spatially modulated quintic nonlinear Schrödinger equation in nonlinear optics and Bose-Einstein condensate

College of Engineering and Design, Lishui University, 323000, Lishui, Zhejiang, China

^* e-mail: zjwhy160@126.com

Received: 11 February 2018
Accepted: 27 February 2018
Published online: 26 March 2018

Abstract

We study a (2 + 1) -dimensional N -coupled quintic nonlinear Schrödinger equation with spatially modulated nonlinearity and transverse modulation in nonlinear optics and Bose-Einstein condensate, and obtain bright-type and dark-type vector multipole as well as vortex soliton solutions. When the modulation depth q is fixed as 0 and 1, we can construct vector multipole and vortex solitons, respectively. Based on these solutions, we investigate the form and phase characteristics of vector multipole and vortex solitons.