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arXiv · 2110.03377

Gravity models with nonlinear symmetry realization

Stanislav Alexeyev·Daniil Krichevskiy·Boris Latosh
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Abstract

Three models with nonlinear realizations of conformal symmetry are discussed. The simplest model can only describe a universe expanding with a deceleration and does not include inflation. The other models are equivalent up to a variables reparametrization. All these models contain ghost degrees of freedom which may be excluded with an additional symmetry of the target space.

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Stanislav Alexeyev, Daniil Krichevskiy, Boris Latosh. 2021-10-07. Gravity models with nonlinear symmetry realization. https://doi.org/10.3390/universe7120501

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