Heinz-Dieter Zeh was theoretical physicist and professor emeritus of the University of Heidelberg. He is known for formalizing the theory of quantum decoherence.
Zeh is known for his work on decoherence, formally described in his 1970 seminal paper. Zeh also dedicated a large part of his work to quantum gravity. In 1986, he argued that gravity assumes classical properties due to environmental degrees of freedom, such as the presence of gravitational waves. ==Bibliography==