RbCs molecules co-trapped with Rb and Cs atoms

We present studies of the formation and collisions of RbCs molecules in an optical trap. We produce trapped RbCs molecules in a variety of states, including their rovibronic ground state $X^1\Sigma^+(v=0,J=0)$, via short-range photoassociation.\footnote{T. Shimasaki, \emph{et al.}, Accepted for publication in Phys. Rev. A (R) (2015) arXiv:1407.7512} We then monitor loss rates of individual molecular states when co-trapped with Rb or Cs atoms. RbCs molecules in the $X^1\Sigma^+(v=0,J=0)$ state are energetically forbidden to chemically react with each other or with Cs atoms. One specific goal of our work is to test proposals for``scrubbing'' molecular excited states from the trapped sample via inelastic collisions with atoms. We will present data relevant to this proposal and to other ultracold atom-molecule collisional interactions.