Expectation of primordial gravity waves generated during inflation
  The inflationary paradigm is extremely successful regarding predictions of
temperature anisotropies in the CMB. However, inflation also makes predictions
for a CMB B-mode polarization, which has not been detected. Moreover, the
standard inflationary paradigm is unable to accommodate the evolution from the
initial state, which is assumed to be symmetric, into a non-symmetric
aftermath. In Phys. Rev. D 96, 101301(R), we show that the incorporation of an
element capable of explaining such a transition drastically changes the
prediction for the shape and size of the B-mode spectrum. In particular,
employing a realistic objective collapse model in a well-defined semiclassical
context, we find that, while predictions of temperature anisotropies are nor
altered (with respect to standard predictions), the B-mode spectrum gets
strongly suppressed--in accordance with observations. Here we present an
in-depth discussion of that analysis, together with the details of the
calculation.
