Erratum: Comment on “The collision effect between dust grains and ions to the dust ion acoustic waves in a dusty plasma” (Physics Plasmas (2012) 19 (103705) DOI: 10.1063/1.4757637)

Abstract

The paper by Yang et al. [Phys. Plasmas 19, 103705 (2012)] contains some errors which have been pointed out in this Comment. They did not normalize all the independent and dependent variables, but to derive the nonlinear evolution equation (KdV-type equation), they expanded dependent variables around their equilibrium values which is not correct. The KdV-type equation obtained in the work [Phys. Plasmas 19, 103705 (2012)] is not correct. To conclude, both the qualitative and quantitative results obtained in the work related to the KdV-type equation are not correct and realistic.