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Cosmological solutions for covariant canonical gauge theories of gravity arepresented. The underlying covariant canonical transformation framework invokesa dynamical space-time Hamiltonian consisting of the Einstein-Hilbert term plusa quadratic Riemann tensor invariant with a fundamental dimensionless couplingconstant $g_1$. A typical time scale related to this constant, $\tau = \sqrt{8\pi G g_1}$, is characteristic for the type of cosmological solutions: for $t\ll \tau$ the quadratic term is dominant, the energy-momentum tensor of thematter is not covariantly conserved, and we observe modified dynamics of matterand space-time. On the other hand, for $t \gg \tau$, the Einstein termdominates and the solution converges to classical cosmology. This is analyzedfor different types of matter and dark energy with a constant equation ofstate. While for a radiation dominated universe solution the cosmology does notchange, we find for a dark energy universe the well known de-Sitter space.However, we also identify a special bouncing solution (for $k=0$) which forlarge times approaches the de-Sitter space again. For a dust dominated universe(with no pressure) deviations are seen only in the early epoch. In the lateepoch, the solution asymptotically behaves like the standard dust solution.

Energy transfer from space-time into matter and a bouncing inflation from Covariant Canonical Gauge theory of Gravity