Two papers were finished recently on the subject of recoilless scattering from a gas and scattering from atoms in an optical lattice as a probe of the quantum state of the lattice.
P. Rabl, P. Cappellaro, G. Dutt, L. Jiang, J. R. Maze, and M. D. Lukin, Strong Magnetic Coupling between an Electronic Spin Qubit and a Mechanical Resonator, Phys. Rev. B 79, 041302 (2009).
Gorshkov, A. M. Rey, A. J. Daley, M. M. Boyd, J. Ye, P. Zoller, and M. D. Lukin, Alkaline-Earth-Metal Atoms as Few Qubit Quantum Registers, Phys. Rev. Lett. 102, 110503 (2009).
L. Jiang, A. M. Rey, O. Romero-Isart, J. J. Garcia-Ripoli, A. Sampera, and M. D. Lukin, Preparation of decoherence-free cluster states with optical superlattices, Phys. Rev. A 79, 022309 (2009).
T. Hong, A. Gorshkov, D. Patterson, A. S. Zibrov, J. M. Doyle, M. D. Lukin, and M. G. Prentiss, Realization of coherent optically dense media via buffer-gas cooling, Phys. Rev. A 79, 013806 (2009).