Quantum Error Correction 4A

          @misc{ scivideos_PIRSA:07010024,
            doi = {},
            url = {https://pirsa.org/07010024},
            author = {Laflamme, Raymond},
            keywords = {},
            language = {en},
            title = {Quantum Error Correction 4A},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2007},
            month = {jan},
            note = {PIRSA:07010024 see, \url{https://scivideos.org/pirsa/07010024}}
          }