$\Lambda$CDM as a Noether Symmetry in Cosmology
作者： D. Benisty , E. I. Guendelman , E. Nissimov , S. Pacheva
DOI: 10.1142/S0218271820501047
关键词: Noether's theorem 、 Physics 、 Dark energy 、 Symmetry breaking 、 Scalar field 、 Mathematical physics 、 Dark matter 、 Conserved current 、 Spacetime 、 Cosmology 、 Astrophysics
摘要: The standard $\Lambda$CDM model of cosmology is formulated as a simple modified gravity coupled to single scalar field ("darkon") possessing non-trivial hidden nonlinear Noether symmetry. main ingredient in the construction use formalism non-Riemannian spacetime volume-elements. associated conserved current produces stress-energy tensor consisting two additive parts -- dynamically generated dark energy and matter components non-interacting among themselves. symmetry breaking via an additional "darkon" potential introduces naturally interaction between matter. correspondence present exhibited up linear order w.r.t. gravity-matter perturbations.
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