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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…