Braid-like Chiral States in Quantum gravity

          @misc{ pirsa_PIRSA:08010044,
            doi = {10.48660/08010044},
            url = {https://pirsa.org/08010044},
            author = {Wan, Yidun},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Braid-like Chiral States in Quantum gravity},
            publisher = {Perimeter Institute},
            year = {2008},
            month = {jan},
            note = {PIRSA:08010044 see, \url{https://pirsa.org}}
          }
          

Abstract

There has been a dream that matter and gravity can be unified in a fundamental theory of quantum gravity. One of the main philosophies to realize this dream is that matter may be emergent degrees of freedom of a quantum theory of gravity. We study the propagation and interactions of braid-like chiral states in models of quantum gravity in which the states are (framed) four-valent spin networks embedded in a topological three manifold and the evolution moves are given by the dual Pachner moves. There are results for both the framed and unframed case. We study simple braids made up of two nodes which share three edges, which are possibly braided and twisted. We find three classes of such braids, those which both interact and propagate, those that only propagate, and the majority that do neither. These braids may serve as fundamental matter content.