Stephen J. Wiesner (1942 – August 12, 2021)[1] was an American-Israeli research physicist, inventor and construction laborer.

Although this work remained unpublished for over a decade, it circulated widely enough in manuscript form to stimulate the emergence of quantum information science in the 1980s and 1990s.

In 2006 he shared the Rank Prize in Optoelectronics with Charles H. Bennett, and Gilles Brassard for quantum cryptography.

After moving to Israel, in addition to his religious study, Wiesner worked part time in construction and as a surveyor.

He continued to work constantly on inventions, ideas and prototypes, mostly related to clean energy, sustainability and space travel.