States of low energy in bouncing inflationary scenarios in loop quantum cosmology

In generic Friedmann-Lema\^{\i}tre-Robertson-Walker spacetimes, states of low energy (SLEs) are defined to minimize the regularized density smeared along timelike curve an isotropic observer, which is specified via a smearing function. For every function, SLEs unique (up phase) and shown be exact Hadamard states. this work, we investigate viability as vacuum for cosmological perturbations in hybrid loop quantum cosmology, motivated by fact that have been provide suitable vacua models where period kinetic dominance precedes inflation. We find there two classes functions can seen natural choices within context, corresponding resulting power spectra at end inflation quite insensitive shape support Furthermore, preliminary analysis tensor-to-scalar ratio spectral index indicates good agreement with observations standard cosmology.