Cosmology: a bird's eye view
| dc.creator | Coley, Alan A. | |
| dc.creator | Hervik, Sigbjorn | |
| dc.creator | Lim, Woei Chet | |
| dc.date | 2006-05-15 | |
| dc.date.accessioned | 2026-07-07T10:40:53Z | |
| dc.date.available | 2026-07-07T10:40:53Z | |
| dc.description | In this essay we discuss the difference in views of the Universe as seen by two different observers. While one of the observers follows a geodesic congruence defined by the geometry of the cosmological model, the other observer follows the fluid flow lines of a perfect fluid with a linear equation of state. We point out that the information these observers collect regarding the state of the Universe can be radically different; while one observes a non-inflating ever-expanding ever-lasting universe, the other observer can experience a dynamical behaviour reminiscent to that of quintessence or even that of a phantom cosmology leading to a 'big rip' singularity within finite time (but without the need for exotic forms of matter). | |
| dc.description | 5 pages; received an honorable mention in the Gravity Research Foundation Essay Competition, 2006 | |
| dc.identifier | https://arxiv.org/abs/gr-qc/0605089 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/0605089 | |
| dc.identifier | Int.J.Mod.Phys.D15:2187-2190,2006 | |
| dc.identifier | doi:10.1142/S0218271806009741 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181463 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Cosmology: a bird's eye view | |
| dc.type | text |