# Can dark energy evolve to the Phantom

@article{Vikman2005CanDE, title={Can dark energy evolve to the Phantom}, author={Alexander Vikman}, journal={Physical Review D}, year={2005}, volume={71}, pages={023515} }

Dark energy with the equation of state $w(z)$ rapidly evolving from the dustlike ($w\ensuremath{\simeq}0$ at $z\ensuremath{\sim}1$) to the phantomlike ($\ensuremath{-}1.2\ensuremath{\lesssim}w\ensuremath{\lesssim}\ensuremath{-}1$ at $z\ensuremath{\simeq}0$) has been recently proposed as the best fit for the supernovae Ia data. Assuming that a dark energy component with an arbitrary scalar-field Lagrangian $p(\ensuremath{\varphi},{\ensuremath{\nabla}}_{\ensuremath{\mu}}\ensuremath{\varphi…

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## References

SHOWING 1-10 OF 31 REFERENCES

### The state of the dark energy equation of state

- Physics
- 2003

By combining data from seven cosmic microwave background experiments (including the latest WMAP results) with the Hubble parameter measurement from the Hubble space telescope and luminosity…

### Can the dark energy equation - of - state parameter w be less than -1?

- Materials Science
- 2003

Models of dark energy are conveniently characterized by the equation-of-state parameter $w=p/\ensuremath{\rho},$ where $\ensuremath{\rho}$ is the energy density and p is the pressure. Imposing the…

### Cosmological Dynamics of Phantom Field

- Physics, Mathematics
- 2003

We study the general features of a dynamics of a phantom field in the cosmological context. In the case of an inverse coshyperbolic potential, we demonstrate that the phantom field can successfully…

### Constraints on dark energy from Chandra observations of the largest relaxed galaxy clusters

- Physics
- 2004

We present constraints on the mean matter density, {Omega}{sub m}, dark energy density, {Omega}{sub DE}, and the dark energy equation of state parameter, w, using Chandra measurements of the X-ray…

### Cosmological constraints on the dark energy equation of state and its evolution

- Physics
- 2004

We have calculated constraints on the evolution of the equation of state of the dark energy, w(z), from a joint analysis of data from the cosmic microwave background, large scale structure and…

### The case for dynamical dark energy revisited

- Physics
- 2004

We investigate the behaviour of dark energy using the recently released supernova data of Riess et al 2004 and a model independent parametrization for dark energy (DE). We find that, if no priors are…

### Uncorrelated estimates of dark energy evolution

- Physics
- 2005

Type Ia supernova data have recently become strong enough to enable, for the first time, constraints on the time variation of the dark energy density and its equation of state. Most analyses,…

### Foundations of observing dark energy dynamics with the Wilkinson Microwave Anisotropy Probe

- Physics
- 2004

Detecting dark energy dynamics is the main quest of current dark energy research. Addressing the issue demands a fully consistent analysis of cosmic microwave background, large-scale structure and…

### Is there supernova evidence for dark energy metamorphosis

- Physics
- 2003

We reconstruct the equation of state w(z) of dark energy (DE) using a recently released data set containing 172 Type Ia supernovae (SNe) without assuming the prior w(z) ≥−1 (in contrast to previous…

### Braneworld models of dark energy

- Physics
- 2002

We explore a new class of braneworld models in which the scalar curvature of the (induced) brane metric contributes to the brane action. The scalar curvature term arises generically on account of…