Scalar-tensor cosmologies with a potential in the general relativity limit: time evolution
arXiv:1006.1246 · doi:10.1016/j.physletb.2010.09.029
Abstract
We consider Friedmann-Lema\^ıtre-Robertson-Walker flat cosmological models in the framework of general Jordan frame scalar-tensor theories of gravity with arbitrary coupling function and potential. For the era when the cosmological energy density of the scalar potential dominates over the energy density of ordinary matter, we use a nonlinear approximation of the decoupled scalar field equation for the regime close to the so-called limit of general relativity where the local weak field constraints are satisfied. We give the solutions in cosmological time with a particular attention to the classes of models asymptotically approaching general relativity. The latter can be subsumed under two types: (i) exponential convergence, and (ii) damped oscillations around general relativity. As an illustration we present an example of oscillating dark energy.
10 pages, 1 figure
References in corpus (18)
- The Confrontation between General Relativity and Experiment
- The Confrontation between General Relativity and Experiment
- Scalar-tensor gravity in an accelerating universe
- Crossing the Phantom Divide: Theoretical Implications and Observational Status
- Scalar-Tensor Models of Normal and Phantom Dark Energy
- Is cosmic acceleration slowing down?
- Superquintessence
- Crossing the Phantom Divide Barrier with Scalar Tensor Theories
- The Behaviour Of Cosmological Models With Varying-G
- Could the cosmic acceleration be transient? A cosmographic evaluation
- Fitting the Constitution SNIa Data with Redshift Binned Parameterization Method
- Oscillations in the dark energy EoS: new MCMC lessons
- Scalar-tensor cosmologies: fixed points of the Jordan frame scalar field
- Potential dominated scalar-tensor cosmologies in the general relativity limit: phase space view
- Scalar-tensor cosmology at the general relativity limit: Jordan vs Einstein frame
- Bouncing universe with the non-minimally coupled scaler field and its reconstructing
- Probing the dynamical behavior of dark energy
- Remarks on (super-)accelerating cosmological models in general scalar-tensor gravity
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- Transformation properties and general relativity regime in scalar-tensor theories
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- Scalar-tensor cosmologies with dust matter in the general relativity limit
- Stability of symmetric teleparallel scalar-tensor cosmologies with alternative connections
- On dilatons with intrinsic decouplings
- The complementarity of the redshift drift
- What if Newton's Gravitational Constant was negative?
- Cosmological dynamics and bifurcation analysis of the general non-minimally coupled scalar field models
- Oscillating scalar fields in extended quintessence
- Constraints on scalar-tensor theories of gravity from observations
- From inflation to dark energy in scalar-tensor cosmology
- Conformal Frame dependence on Cosmological Observations in Scalar-Tensor Theories of Gravity