×

zbMATH — the first resource for mathematics

Turnaround in cyclic cosmology. (English) Zbl 1228.83117
Summary: It is speculated how dark energy in a brane world can help reconcile an infinitely cyclic cosmology with the second law of thermodynamics. A cyclic model is described, in which dark energy with \(w<-1\) equation of state leads to a turnaround at a time, extremely shortly before the would-be big rip, at which both volume and entropy of our Universe decrease by a gigantic factor, while very many independent similarly small contracting universes are spawned. The entropy of our model decreases almost to zero at turnaround but increases for the remainder of the cycle by a vanishingly small amount during contraction, empty of matter, then by a large factor during inflationary expansion.

MSC:
83F05 Cosmology
PDF BibTeX XML Cite
Full Text: DOI arXiv
References:
[1] DOI: 10.1007/BF01332580 · doi:10.1007/BF01332580
[2] DOI: 10.1103/PhysRev.38.1758 · Zbl 0003.18002 · doi:10.1103/PhysRev.38.1758
[3] R. C. Tolman, in: Relativity, Thermodynamics and Cosmology (1934) · Zbl 0009.41304
[4] DOI: 10.1103/PhysRevD.64.123522 · doi:10.1103/PhysRevD.64.123522
[5] DOI: 10.1126/science.1070462 · Zbl 1226.83096 · doi:10.1126/science.1070462
[6] DOI: 10.1103/PhysRevD.65.126003 · doi:10.1103/PhysRevD.65.126003
[7] DOI: 10.1103/PhysRevD.70.023504 · doi:10.1103/PhysRevD.70.023504
[8] DOI: 10.1126/science.1126231 · Zbl 1226.83097 · doi:10.1126/science.1126231
[9] DOI: 10.1103/PhysRevLett.83.3370 · Zbl 0946.81063 · doi:10.1103/PhysRevLett.83.3370
[10] DOI: 10.1103/PhysRevLett.83.4690 · Zbl 0946.81074 · doi:10.1103/PhysRevLett.83.4690
[11] DOI: 10.1103/PhysRevD.62.045015 · doi:10.1103/PhysRevD.62.045015
[12] DOI: 10.1016/S0550-3213(99)00696-3 · Zbl 0965.83036 · doi:10.1016/S0550-3213(99)00696-3
[13] DOI: 10.1016/S0370-2693(03)00208-9 · Zbl 01886114 · doi:10.1016/S0370-2693(03)00208-9
[14] DOI: 10.1016/j.astropartphys.2004.08.003 · doi:10.1016/j.astropartphys.2004.08.003
[15] DOI: 10.1016/S0370-2693(02)02589-3 · Zbl 01806720 · doi:10.1016/S0370-2693(02)02589-3
[16] DOI: 10.1103/PhysRevLett.91.071301 · doi:10.1103/PhysRevLett.91.071301
[17] DOI: 10.1103/PhysRevD.23.347 · Zbl 1371.83202 · doi:10.1103/PhysRevD.23.347
[18] DOI: 10.1103/PhysRevLett.90.151301 · doi:10.1103/PhysRevLett.90.151301
[19] DOI: 10.1088/1475-7516/2003/11/011 · doi:10.1088/1475-7516/2003/11/011
This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. It attempts to reflect the references listed in the original paper as accurately as possible without claiming the completeness or perfect precision of the matching.