The time-dependent mass of cosmological perturbations in loop quantum cosmology: Dapor-Liegener regularization

Alejandro García-Quismondo, Guillermo A. Mena Marugán, Gabriel Sánchez Pérez

In this work, we compute the time-dependent masses that govern the dynamics of scalar and tensor perturbations propagating on an effective flat, homogeneous, and isotropic backgrou…