Loop Quantum Cosmology

Understand

This Chapter provides an up to date, pedagogical review of some of the most relevant advances in loop quantum cosmology.

• We review the quantization of homogeneous cosmological models, their singularity resolution and the formulation of effective equations that incorporate the main quantum corrections to the dynamics.
• We also summarize the theory of quantized metric perturbations propagating in those quantum backgrounds.
• Finally, we describe how this framework can be applied to obtain a self-consistent extension of the inflationary scenario to incorporate quantum aspects of gravity, and to explore possible phenomenological consequences.