BEC -coherent macroscopic matter wave Vortex in BEC (JILAgroup, 2000 bEC of 87rb (JILAgroup, 1995 Ideal platform for Ultra low temperature quantum physics Matter wave laser (MPQ group, 2000) Matter wave interference (MIT group, 1997)BEC – coherent macroscopic matter wave lamp laser Vortex in BEC (JILA group, 2000) Matter wave interference (MIT group, 1997) BEC of 87Rb (JILA group, 1995) Ideal platform for Ultra low temperature quantum physics Matter wave laser (MPQ group, 2000)