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- W2601468900 endingPage "040" @default.
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- W2601468900 abstract "We consider cosmological dynamics in the theory of gravity with the scalar field possessing the nonminimal kinetic coupling to curvature given as $eta G^{munu}phi_{,mu}phi_{,nu}$, where $eta$ is an arbitrary coupling parameter, and the scalar potential $V(phi)$ which assumed to be as general as possible. With an appropriate dimensionless parametrization we represent the field equations as an autonomous dynamical system which contains ultimately only one arbitrary function $chi (x)= 8 pi vert eta vert V(x/sqrt{8 pi})$ with $x=sqrt{8 pi}phi$. Then, assuming the rather general properties of $chi(x)$, we analyze stationary points and their stability, as well as all possible asymptotical regimes of the dynamical system. It has been shown that for a broad class of $chi(x)$ there exist attractors representing three accelerated regimes of the Universe evolution, including de Sitter expansion (or late-time inflation), the Little Rip scenario, and the Big Rip scenario. As the specific examples, we consider a power-law potential $V(phi)=M^4(phi/phi_0)^sigma$, Higgs-like potential $V(phi)=frac{lambda}{4}(phi^2-phi_0^2)^2$, and exponential potential $V(phi)=M^4 e^{-phi/phi_0}$." @default.
- W2601468900 created "2017-04-07" @default.
- W2601468900 creator A5028010287 @default.
- W2601468900 creator A5062921382 @default.
- W2601468900 date "2018-01-22" @default.
- W2601468900 modified "2023-10-14" @default.
- W2601468900 title "General dynamical properties of cosmological models with nonminimal kinetic coupling" @default.
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- W2601468900 doi "https://doi.org/10.1088/1475-7516/2018/01/040" @default.
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