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Bianchi I effective dynamics in Quantum Reduced Loop Gravity
Emanuele Alesci, Gioele Botta, Giovanni Luzi +1
The effective quantum dynamics of Bianchi I spacetime is addressed within the statistical regularization scheme in Quantum Reduced Loop Gravity. The case of a minimally coupled mas…
Phenomenology of Quantum Reduced Loop Gravity in the isotropic cosmological sector
Emanuele Alesci, Aurélien Barrau, Gioele Botta +2
Quantum reduced loop gravity is designed to consistently study symmetry reduced systems within the loop quantum gravity framework. In particular, it bridges the gap between the eff…
2-vertex Lorentzian Spin Foam Amplitudes for Dipole Transitions
Giorgio Sarno, Simone Speziale, Gabriele V. Stagno
We compute transition amplitudes between two spin networks with dipole graphs, using the Lorentzian EPRL model with up to two (non-simplicial) vertices. We find power-law decreasin…
Quantum reduced loop gravity effective Hamiltonians from a statistical regularization scheme
Emanuele Alesci, Gioele Botta, Gabriele V. Stagno
We introduce a new regularization scheme for Quantum Cosmology in Loop Quantum Gravity (LQG) using the tools of Quantum Reduced Loop Gravity (QRLG). It is obtained considering dens…