Kindergarten quantum mechanics

          @misc{ scivideos_PIRSA:05070118,
            doi = {10.48660/05070118},
            url = {https://pirsa.org/05070118},
            author = {Coecke, Bob},
            keywords = {},
            language = {en},
            title = {Kindergarten quantum mechanics },
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2005},
            month = {jul},
            note = {PIRSA:05070118 see, \url{https://scivideos.org/pirsa/05070118}}
          }