Before revision: This has led to the proposal by Levin and Wen, Photons and electrons as emergent phenomena Michael Levin, Xiao-Gang Wen URL page 8 "loop quantum gravity appears to be a string net condensation..." and Smolin, Markopoulou and Konopka that loop quantum gravity's spin networks can give rise to the standard model of particle physics through this mechanism, along with fermi statistics and gauge interactions.
After revision: This has led to the proposal by Levin and Wen, and Smolin, Markopoulou and Konopka that loop quantum gravity's spin networks can give rise to the standard model of particle physics through this mechanism, along with fermi statistics and gauge interactions.