Dr. Alexander Retzker Universitaet Ulm, Germany Date: Nov. 28, 2010 Title: Laser cooling schemes for cold atoms Abstract: In this Colloquium the importance of laser cooling for the benefit of cold atoms experiments will be reviewed. In particular I will explain the role of dark state cooling schemes in the quest to reach the ground state of single particles and many body systems. I will present a robust and fast laser cooling scheme suitable for trapped ions, atoms, or cantilevers. Based on quantum interference, generated by a special laser configuration, it is able to rapidly cool the system such that the final phonon occupation vanishes to zeroth order in the Lamb-Dicke parameter in contrast to existing cooling schemes.