John Francis Clauser (; born December 1, 1942 in Pasadena, California) is an American theoretical and experimental physicist known for contributions to the foundations of quantum mechanics, in particular the Clauser–Horne–Shimony–Holt inequality.
Author: John Clauser bought this photo from a friend who is a photographer. Source: John Clauser gave me this photo and asked me to post it on his wikipedia page. License: CC-BY-SA-4.0