Bose-Einstein Condensation of ${}^{88}$Sr Through Sympathetic Cooling with ${}^{87}$Sr

P. G. Mickelson, Y. N. Martinez de Escobar, M. Yan +2

We report Bose-Einstein condensation of ${}^{88}$Sr, which has a small, negative s-wave scattering length ($a_{88}=-2$\,$a_0$). We overcome the poor evaporative cooling characteristi…