P.
R.
Johnson
Johnson, P. R., Tiesinga, E. ., Porto, J. V., & Williams, C. J. (2009). Effective three-body interactions of neutral bosons in optical lattices. New Journal of Physics, 11. http://doi.org/10.1088/1367-2630/11/9/093022
Fleming, C. H., Johnson, P. R., & Hu, B. L. (2012). Nonequilibrium dynamics of charged particles in a quantized electromagnetic field: causal, stable and self-consistent dynamics from 1/c expansion. Journal of Physics a-Mathematical and Theoretical, 45. http://doi.org/10.1088/1751-8113/45/25/255002