accelerating universe 1constrained scalar fields 1Einstein frame 1Jordan frame 1non-minimal coupling 1phantom equation of state 1
From the 1 of 2 linked papers with an AI index.
2 papers
hep-th2026
Accelerating Universe from Constraints
Anamaria Hell, Misao Sasaki
The paper proposes a framework of constrained scalar fields with non‑minimal coupling that can drive cosmic acceleration independently of the cosmological constant, and analyzes it…
hep-th2026
The recipe for the degrees of freedom
Anamaria Hell, Elisa G. M. Ferreira, Dieter Lust +1
We consider the question of counting the degrees of freedom in theoretical models, with an emphasis on theories of fields and gravity. Among the possible approaches, the Hamiltonia…