The cosmological constant as a boundary term
نویسندگان
چکیده
A bstract We compare the path integral for transition functions in unimodular gravity and general relativity. In cosmological constant is a property of states that are specified at boundaries whereas relativity parameter action. Unimodular with nondynamical background spacetime volume element has time variable canonically conjugate to constant. Wave depend on satisfy Schrödinger equation. On contrary, covariant version 3-form gauge field, proposed by Henneaux Teitelboim, wave independent Wheeler-DeWitt equation, as The field integrated over spacelike hypersurfaces becomes “cosmic time” only semiclassical approximation. smallness observed be explained initial state.
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2022
ISSN: ['1127-2236', '1126-6708', '1029-8479']
DOI: https://doi.org/10.1007/jhep08(2022)167