The Nobel Prize in Physics 2005 "for his contribution to the quantum theory of optical coherence" "for their contributions to the development of laser-based precision spectroscopy, including the optical frequency comb technique" John L. Hall 1/4 of the prize University of Colorado, JILA; National Institute of Standards and Technology Boulder, CO, USA Roy J. Glauber 1/2 of the prize Harvard University Cambridge, MA, USA Theodor W. H?nsch 1/4 of the prize Max-Planck-Institut f?r Quantenoptik Garching, Germany; Ludwig-Maximilians-Universit?t Munich, Germany