Cooling Techniques for Trapped Ions
  This book chapter gives an introduction to, and an overview of, methods for cooling trapped ions. The main addressees are researchers entering the field. It is not intended as a comprehensive survey and historical account of the extensive literature on this topic. We present the physical ideas behind several cooling schemes, outline their mathematical description, and point to relevant literature useful for a more in-depth study of this topic. 
Daniel M. Segal, Christof Wunderlich
quant-ph physics.atom-ph