What is the profession of both Daniel Greenberger and Anton Zeilinger?
Daniel Greenberger: Daniel M. Greenberger (born 1932) is an American quantum physicist. Anton Zeilinger: Anton Zeilinger (] ; born 20 May 1945) is an Austrian quantum physicist who in 2008 received the Inaugural Isaac Newton Medal of the Institute of Physics (UK) for "his pioneering conceptual and experimental contributions to the foundations of quantum physics, which have become the cornerstone for the rapidly-evolving field of quantum information".
quantum physicist