Quantum Reduced Loop Gravity: a realistic Universe

Understand

We describe the quantum flat universe in QRLG in terms of states based at cuboidal graphs with six-valent nodes.

• We investigate the action of the scalar constraint operator at each node and we construct proper semiclassical states.
• This allows us to discuss the semiclassical effective dynamics of the quantum universe, which resembles that of LQC.
• In particular, the regulator is identified with the third root of the inverse number of nodes within each homogeneous patch, while inverse-volume corrections are enhanced.