Loop Quantum Gravity Vacuum with Nondegenerate Geometry
Loop Quantum Gravity Vacuum with Nondegenerate Geometry
In loop quantum gravity, states of the gravitational field turn out to be excitations over a vacuum state that is sharply peaked on a degenerate spatial geometry.While this vacuum is singled out as fundamental due to its invariance properties, it is also important to consider states that describe non-degenerate geometries.Such …