13 citations · 18 across the 8 of their papers we have counts for
Showing hep-thShow all
3 papers · 1 filter
hep-th2023
Unimodular Proca Theory: Breaking the U(1) gauge symmetry of unimodular gravity via a mass term
Raymond Isichei, João Magueijo
We study the Hamiltonian structure of unimodular-like theories, where the cosmological constant (or other supposed constants of nature) are demoted from fixed parameters to classic…
hep-th2023★ 5 cited
Unitary and Vilenkin's wave functions
Bruno Alexandre, Raymond Isichei, João Magueijo
It is remarkably difficult to reconcile unitary and Vilenkin's wave function. For example, the natural conserved inner product found in quantum unimodular gravity applies to the Ha…
hep-th2022★ 13 cited
Minisuperspace Quantum Cosmology from the Einstein-Cartan Path Integral
Raymond Isichei, João Magueijo
We derive the fixed- and unimodular propagators using the path integral formalism as applied to the Einstein-Cartan action. The simplicity of the action (which is linear in the…