Colloquium on September 26th, 2005Maciej Lewenstein Barcelona Quo vadis optica quantorum? In my talk I will present the recent developments of Quantum Optics, and in particular physics of ultracold gases that occur at the interplay between Quantum Optics, Atomic Physics, Quantum Information, Statistical Mechanics, Condensed Matter Physics and even High Energy Physics, and touch the same frontiers and challenges of modern physics. In particular I will discuss the possibility of studying and discovering new phenomena in physics of frustrated antiferromagnets, physics of disordered systems and about possibility of studying some aspects of abelian and nonabelian gauge field theories.  

