%0 journal article %@ 1070-6631 %A Carpenter, J.R., Guha, A. %D 2019 %J Physics of Fluids %N 8 %P 081701 %R doi:10.1063/1.5116633 %T Instability of a smooth shear layer through wave interactions %U https://doi.org/10.1063/1.5116633 8 %X We wish to acknowledge the support of the Helmholtz Association (PACES II) and the Alexander von Humboldt Foundation fellowship to A.G. We also thank Subhajit Kar for help and two anonymous reviewers for their insightful comments.