Interaction-shaped vortex-antivortex lattices in polariton fluids

This work has been partially funded by the Quandyde project of the ANR France, by the PO-LATOM ESF Research Network Program and by the CLERMONT4 Network Progam. FMM acknowledges - financial support from the programs Ramon y Cajal and Intelbiomat (ESF) and MHS from the EPSRC (grant EP/I028900/1). A. B. is member of Institut Universitaire de France (IUF)