Cosmological perturbations in hybrid loop quantum cosmology: Mukhanov-Sasaki variables
Cosmological perturbations in hybrid loop quantum cosmology: Mukhanov-Sasaki variables
We study cosmological perturbations in the framework of loop quantum cosmology, using a hybrid quantization approach and Mukhanov--Sasaki variables. The formulation in terms of these gauge invariants allows one to clarify the independence of the results on choices of gauge and facilitates the comparison with other approaches proposed to deal …