https://doi.org/10.1140/epjp/i2015-15004-x
Regular Article
Dark optical solitons of Biswas-Milovic equation with dual-power law nonlinearity
1
Department of Engineering Sciences, Faculty of Technology and Engineering, East of Guilan, University of Guilan, Rudsar-Vajargah, Iran
2
Department of Mathematics, Faculty of Mathematical Sciences, University of Mazandaran, Babolsar, Iran
3
Department of Engineering Mathematics and Physics, Higher Institute of Engineering El Shorouk, El Shorouk, Egypt
* e-mail: mirzazadehs2@guilan.ac.ir
Received:
11
August
2014
Revised:
20
November
2014
Accepted:
28
November
2014
Published online:
12
January
2015
This paper studies the Biswas-Milovic equation, which is a generalized version of the nonlinear Schrödinger equation, with dual-power law nonlinearity. The G′/G-expansion method is employed to extract the dark 1-soliton solution from the equation. The results have a similar setting to the ones obtained earlier by the ansatz approach. Both constant and time-dependent coefficients are taken into consideration.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2015
