Ray and Klee discuss a new paper published by Quantum Gravity Research in the proceedings of the 2017 Minkowski Institute International Conference on the Nature and Ontology of Spacetime.
In the paper, QGR’s scientists apply a discrete quantum walk from a quantum particle on a discrete quantum spacetime from loop quantum gravity and show that the related entanglement entropy drives an entropic force. They apply these concepts in a model where walker positions are topologically encoded on a spin network. Then, they discuss the role of the golden ratio in fundamental physics by addressing charge and length quantization and by analyzing the ratios of fundamental constants−the limits of nature. The limit of minimal length and volume arising in quantum gravity theory indicate an underlying principle that they develop therein.
