| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10725549 | Physics Letters B | 2006 | 5 Pages |
Abstract
We find the group of symmetry transformations generated by interacting fluids in spatially flat Friedmann-Robertson-Walker (FRW) spacetime which links cosmologies with the same scale factor (identity) or with scale factors a and aâ1 (duality). There exists a duality between contracting and superaccelerated expanding scenarios associated with (phantom) cosmologies. We investigate the action of this symmetry group on self-interacting minimally (conformally) coupled quintessence and k-essence cosmologies.
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Authors
L.P. Chimento,