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Phys. Rev. D 68, 103519 (2003) [10 pages]

Phantom cosmologies

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Mariusz P. Da̧browski *
Institute of Physics, University of Szczecin, Wielkopolska 15, 70-451 Szczecin, Poland

Tomasz Stachowiak † and Marek Szydłowski ‡
Astronomical Observatory, Jagiellonian University, 30-244 Kraków, ul. Orla 171, Poland

Received 21 July 2003; published 26 November 2003

We discuss a class of phantom (p<-ϱ) cosmological models. Except for the phantom we admit various forms of standard types of matter and discuss the problem of singularities for these cosmologies. The singularities are different from those of standard matter cosmology since they appear for infinite values of the scale factor. We also find an interesting relation between the phantom models and standard matter models which is like the duality symmetry of string cosmology.


©2003 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.68.103519
DOI: 10.1103/PhysRevD.68.103519
PACS: 98.80.Jk, 04.20.Jb, 98.80.Cq

* Electronic address: mpdabfz@uoo.univ.szczecin.pl
† Electronic address: toms@oa.uj.edu.pl
‡ Electronic address: uoszydlo@cyf-kr.edu.pl

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