83 citations · 494 across the 34 of their papers we have counts for
Showing 2022Show all
2 papers · 1 filter
gr-qc2022★ 7 cited
New formalism to define vacuum states for scalar fields in curved space-times
Mariana Penna-Lima, Nelson Pinto-Neto, Sandro D. P. Vitenti
The problem of finding a vacuum definition for a single quantum field in curved space-times is discussed under a new geometrical perspective. The phase space dynamics of the quantu…
gr-qc2022
Clocks and trajectories in quantum cosmology
Przemysław Małkiewicz, Patrick Peter, S. D. P. Vitenti
We consider a simple cosmological model consisting of an empty Bianchi I Universe, whose Hamiltonian we deparametrise to provide a natural clock variable. The model thus effectivel…