3 papers
gr-qc2025
Revisiting semiclassical effective dynamics for quantum cosmology
Maciej Kowalczyk, Tomasz PawÅowski
We revise the technique of semiclassical effective dynamics, in particular reexamining the evaluation of Poisson structure of the so-called central moments capturing quantum correc…
gr-qc2025
Primodial power spectrum in loop quantum cosmology for different regularizations
Maciej Kowalczyk, Guillermo A. Mena Marugán, Tomasz PawÅowski
In Loop Quantum Cosmology, the quantization of the Hamiltonian constraint involves a regularization procedure which is affected by certain ambiguities. Moreover, different regulari…
gr-qc2024
Choice of vacuum state and the relation between inflationary and Planck scales
Maciej Kowalczyk, Guillermo A. Mena Marugán
Recent observations about the cosmic microwave background evidence a clear discrepancy between the scale of inflation and the Planck scale expected in the conventional inflationary…