The structure of cosmic time
| dc.creator | Sparling, George | |
| dc.date | 2006-06-29 | |
| dc.date.accessioned | 2026-07-07T07:13:14Z | |
| dc.date.available | 2026-07-07T07:13:14Z | |
| dc.description | Following the approach of Julien Lesgourgues [astro-ph/0409426], we analyze the mathematical structure of the time co-ordinate of present day cosmological models, where these models include a cosmological constant term to account for the observed acceleration of the universe: we find that in all cases, except for a set of measure zero in the parameter space, the time is given by an (abelian) integral on a torus; the imaginary period of this integral then gives a natural periodicity in imaginary time for the universe; following Stephen Hawking, this periodicity may be interpreted either as giving a fundamental mass scale for the universe, or (using Planck's constant) a fundamental temperature, or both. The precise structure that emerges suggests that the structure of time can be regarded as an order parameter arising perhaps in a phase transition in the early universe; one might hope that this structure would be predictable in any fundamental theory. | |
| dc.description | 39 pages | |
| dc.identifier | https://arxiv.org/abs/gr-qc/0606129 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/0606129 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/112378 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | The structure of cosmic time | |
| dc.type | text |