Quantum Reference Frames and Relative States

          @misc{ scivideos_PIRSA:04070001,
            doi = {10.48660/04070001},
            url = {https://pirsa.org/04070001},
            author = {Gisin, Nicolas},
            keywords = {},
            language = {en},
            title = {Quantum Reference Frames and Relative States},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2004},
            month = {jul},
            note = {PIRSA:04070001 see, \url{https://scivideos.org/pirsa/04070001}}
          }