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2001 APS Fellow - Carl Williams
The criterion for election is exceptional contributions to the physics enterprise; e.g., outstanding physics research, important applications of physics, leadership in or service to physics, or significant contributions to physics education. Fellowship is a distinct honor signifying recognition by one's professional peers.
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For definitive calculations of atomic collision processes, which have improved our understanding of photoassociation spectroscopy, dynamics of Bose-Einstein condensates, and effects of radiation retardation on atomic collisions.