New action for cosmology
نویسندگان
چکیده
We present a new action which reproduces the cosmological sector of general relativity in both Friedmann-Lemaitre-Robertson-Walker (FLRW) and Bianchi models. This makes no reference to scale factor, is frictional type first examined by Herglotz. demonstrate that extremization this usual dynamics physical observables, symplectification Einstein-Hilbert for end discussing some increased explanatory power produced considering reduced ontology resulting from eliminating scale.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.103.043524