  We provide an Emergent Universe picture in which the fine-tuning on the
initial conditions is replaced by cut-off physics, implemented on a
semiclassical level when referred to the Universe dynamics and on a purely
quantum level for the quantum fluctuations of the inflaton field. The adopted
cut-off physics is inspired by Polymer Quantum Mechanics but expanded in the
limit of a small lattice step. On a quasi-classical level, this results in
modified Poisson Brackets for the Hamiltonian Universe dynamics similar to a
Generalized Uncertainty Principle algebra. The resulting Universe is indeed
asymptotically Einstein-static, emerging from a finite volume configuration in
the distant past and then properly reconnecting with the most relevant Universe
phases. The calculation of the modifications of the primordial inflaton
spectrum is then performed by treating new physics as a small correction on the
standard Hamiltonian of each Fourier mode of the field. The merit of this study
is to provide a new paradigm for a non-singular Emergent Universe, which is
associated with a precise fingerprint on the temperature distribution of the
microwave background, in principle observable by future experiments.
