Studies of cold collisions in trapped alkali mixture

Summary form only given. We have developed a new vapor cell for a magneto-optical trap (MOT) that has the capability of trapping two different species simultaneously and independently. Currently, we can trap any pair involving two of the following atoms: Na, K, Rb, and Cs. Our experimental setup consists of a cylindrical stainless steel chamber with four reservoirs. These independent reservoirs allow us to pick the species to be investigated.