Constructing phantom cosmologies from standard scalar field universes.
@article{Chimento2003ConstructingPC, title={Constructing phantom cosmologies from standard scalar field universes.}, author={Luis P. Chimento and Ruth Lazkoz}, journal={Physical review letters}, year={2003}, volume={91 21}, pages={ 211301 } }
We illustrate how form-invariance transformations can be used for constructing phantom cosmologies from standard scalar field universes. First we discuss how to relate two flat Friedmann-Robertson-Walker cosmologies with different barotropic indexes gamma and gamma;. Then we consider the particular case gamma;=-gamma, and we show that, if the matter content is interpreted in terms of self-interacting scalar fields, then the corresponding transformation provides the link between a standard and a…
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References
SHOWING 1-10 OF 12 REFERENCES
Phantom Matter and the Cosmological Constant
- Physics
- 2003
AbstractMotivated by some recent speculative attempts to model the dark en-ergy, scalar fields with negative kinetic energy coupled to gravity withouta cosmological constant are considered. It is…
Phantom scalar fields result in inflation rather than Big Rip
- Physics
- 2003
There exists a variety of exact solutions of the scalar field Einstein equations, allowing for “phantom regions” with negative kinetic field term. These regions can be cut out, their boundaries being…
Phys
- Lett. B 265, 287 (1991); K. A. Meissner and G. Veneziano, Phys. Lett. B 267, 33 (1991); Mod. Phys. Lett. A 6, 3397 (1991); J. E. Lidsey, D.W. Wands, and E. J. Copeland, Phys. Rep. 337, 343
- 2000
Phys
- Lett. B 565, 1
- 2003
Phys
- Rev. D 64, 043508 (2001); M. Bastero-Gil, P. H. Frampton, and L. Mersini, Phys. Rev. D 65, 106002 (2002); P. H. Frampton, Phys. Lett. B 555, 139
- 2003
and Ruth Lazkoz
- Phys. Rev. D 67, 083518
- 2003
Phys
- Rev. D 65, 063517
- 2002
Phys
- Lett. B 562, 147
- 2003
Phys
- Rev. Lett. 91, 071301 (2003); A. Yurov, astro-ph/ 0305019; P. F. González-Dı́az, Phys. Rev. D 68, 021303
- 2003
Phys
- Lett. B 545, 23
- 2002