Accurate measurement of the loss rate of cold atoms due to background gas collisions for the quantum-based cold atom vacuum standard

Daniel S. Barker, James A. Fedchak, Jacek Kłos +4

We present measurements of thermalized collisional rate coefficients for ultra-cold ${}^7$Li and ${}^{87}$Rb colliding with room-temperature He, Ne, N${}_2$, Ar, Kr, and Xe. In our exper…