Ferrero R, Naso V, Percacci R (2025)
Publication Type: Journal article
Publication year: 2025
Book Volume: 11
Article Number: 173
Journal Issue: 6
It has been shown that if one solves self-consistently the semiclassical Einstein equations in the presence of a quantum scalar field, with a cutoff on the number of modes, spacetime become flatter when the cutoff increases. Here, we extend the result to include the effect of fields with spin 0, 1/2, 1 and 2. With minor adjustments, the main result persists. Remarkably, one can have positive curvature even if the cosmological constant in the bare action is negative.
APA:
Ferrero, R., Naso, V., & Percacci, R. (2025). Quantum Fields and the Cosmological Constant. Universe, 11(6). https://doi.org/10.3390/universe11060173
MLA:
Ferrero, Renata, Vincenzo Naso, and Roberto Percacci. "Quantum Fields and the Cosmological Constant." Universe 11.6 (2025).
BibTeX: Download