Multicomponent polariton superfluidity in the optical parametric oscillator regime

Financial support from the ERC POLAFLOW (Grant No. 308136) is acknowledged. F.M.M. acknowledges financial support from the Ministerio de Economia y Competitividad (MINECO, Contract No. MAT2011-22997), the Comunidad Autonoma de Madrid (CAM, Contract No. S-2009/ESP-1503), and the European Science Foundation (ESF) program Intelbiomat. I.C. acknowledges financial support by the ERC through the QGBE grant and by the Autonomous Province of Trento, partly through the “On silicon chip quantum optics for quantum computing and secure communications” (“SiQuro”) project. M.H.S. acknowledges support from EPSRC (Grants No. EP/I028900/2 and No. EP/K003623/2). A.C.B. acknowledges financial support from the European Science Foundation (ESF) through POLATOM Grant No. 4914