Universal Physics with Ultracold Atoms Dr. Yusuke Nishida, 2008-11 Fellow (Nuclear & Particle Theory) Physics is said to be universal when results are independent of the details of how particles interact with each other.  Universal phenomena appear in many different fields of physics. Among others, ultracold atoms are ideal for studying universal physics because the atom-atom interaction can be controlled at will. Recently, considerable attention has been paid to universal trimers, in which three particles stick together. I’ll review how the universal few-body and many-body physics can be studied with ultracold atoms and describe recent attempts to extend this perspective to other than three dimensions.