Convergence of quantum walks

          @misc{ pirsa_PIRSA:04070008,
            doi = {10.48660/04070008},
            url = {https://pirsa.org/04070008},
            author = {},
            keywords = {},
            language = {en},
            title = {Convergence of quantum walks},
            publisher = {Perimeter Institute},
            year = {2004},
            month = {jul},
            note = {PIRSA:04070008 see, \url{https://pirsa.org}}
          }