Observation of Cold Collisions between Trapped Ions and Trapped Atoms. A. Grier, M. Cetina, F. Orucevic, and V. Vuletic, Phys. Rev. Lett. 102, 223201 (2009).
A. Gorshkov, M. Hermele, V. Gurarie, C. Xu, P. Julienne, J. Ye, P. Zoller, E. Demler, M. Lukin, and A. Rey, Two-Orbital SU(N) Magnetism with Ultracold Alkaline- Earth Atoms, submitted to Nature Physics, (2009).
Theoretical Studies of collisional processes and gases at ultracold and cold temperatures in research that is responsive to the experimental program. Scattering at low temperatures is sensitive to the interaction at large distances of the colliding species. We calculated the interactions at long-range of a pair of ytterbium atoms (P. Zhang and a. Dalgarno 2008)...
M. Bajcsy, S. Hofferberth, V. Balic, T. Peyronel, M. Hafezi, A. S. Zibrov, V. Vuletic, and M. D. Lukin, Efficient All Optical Switching Using Slow Light Within a Hollow Fiber, Phys. Rev. Lett. 102, 203902 (2009).
A major goal of current research with ultracold atoms in optical lattices is the realization of magnetic ordering. This requires temperatures on the order of the second order tunneling rate, J2/U where U is the interaction energy and J the tunneling amplitude. Such temperatures are about ten times less than 1 nk, the lowest temperature...