Matter-wave clocks

          @misc{ scivideos_PIRSA:12100124,
            doi = {10.48660/12100124},
            url = {https://pirsa.org/12100124},
            author = {Mueller, Holger},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Matter-wave clocks},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2012},
            month = {oct},
            note = {PIRSA:12100124 see, \url{https://scivideos.org/index.php/pirsa/12100124}}
          }