Comment on

• Bose-Einstein condensation of exciton polaritons.

  Kasprzak J, Richard M, Kundermann S, Baas A, Jeambrun P, Keeling JM, Marchetti FM, Szymańska MH, André R, Staehli JL, Savona V, Littlewood PB, Deveaud B, Dang le S. Kasprzak J, et al. Nature. 2006 Sep 28;443(7110):409-14. doi: 10.1038/nature05131. Nature. 2006. PMID: 17006506
• Bose-Einstein condensation of quasi-equilibrium magnons at room temperature under pumping.

  Demokritov SO, Demidov VE, Dzyapko O, Melkov GA, Serga AA, Hillebrands B, Slavin AN. Demokritov SO, et al. Nature. 2006 Sep 28;443(7110):430-3. doi: 10.1038/nature05117. Nature. 2006. PMID: 17006509