Additive Extensions of a Quantum Channel

          @misc{ scivideos_PIRSA:08060205,
            doi = {10.48660/08060205},
            url = {https://pirsa.org/08060205},
            author = {Smolin, John},
            keywords = {Quantum Information},
            language = {en},
            title = {Additive Extensions of a Quantum Channel},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2008},
            month = {jun},
            note = {PIRSA:08060205 see, \url{https://scivideos.org/index.php/pirsa/08060205}}
          }