Tensor network renormalization

          @misc{ scivideos_PIRSA:15080049,
            doi = {10.48660/15080049},
            url = {https://pirsa.org/15080049},
            author = {Vidal, Guifre},
            keywords = {Mathematical physics},
            language = {en},
            title = {Tensor network renormalization},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2015},
            month = {aug},
            note = {PIRSA:15080049 see, \url{https://scivideos.org/pirsa/15080049}}
          }