The Nobel Prize in Physics 2005
  glauber   Roy Glauber – the father of quantum optics

The challenge that Roy Glauber took up was to formulate a theory that gave optics a quantum-mechanical explanation too. He succeeded in describing a general method for observing photons which gave a correct picture of, for example, the difference between light from a laser and from an ordinary light bulb.

Roy J. Glauber
Harvard University, Cambridge, MA, USA

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