4 citations · 7 across the 11 of their papers we have counts for
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The initial states of high frequency gravitons
Massimo Giovannini
After distinguishing the role of classical and quantum inhomogeneities in cosmological backgrounds, we constrain the initial states of the relic gravitons as soon as the different…
Ultra-high frequency spikes of relic gravitons
Massimo Giovannini
The maximal frequency domain of the cosmic gravitons falls in the THz region where, without conflicting with the existing phenomenological bounds, only few particles with opposite…
Gravitational wave astronomy and the expansion history of the Universe
Massimo Giovannini
The timeline of the expansion rate ultimately defines the interplay between high energy physics, astrophysics and cosmology. The guiding theme of this topical review is provided by…
Relic gravitons and non-stationary processes
Massimo Giovannini
Stationary processes do not accurately describe the diffuse backgrounds of relic gravitons whose correlations are homogeneous in space (i.e. only dependent upon the distance betwee…
The maximal frequency of cosmic gravitons
Massimo Giovannini
We show that the maximal frequency of cosmic gravitons must not exceed the THz domain. From a classical viewpoint, both in conventional inflationary scenarios and in bouncing model…
Relic gravitons and pulsar timing arrays: a theoretical viewpoint
Massimo Giovannini
During the last three years the pulsar timing arrays reported a series of repeated evidences of gravitational radiation (with stochastically distributed Fourier amplitudes) at a be…