Posted: Aug 27, 2021 8:35 am
Calilasseia wrote:Meanwhile, would someone care to present some of the competing cosmologies extant in the physics literature?
I'm aware of two - Steinhardt & Turok's braneworld collision cosmology, and Hawking's No Boundary Theorem (which is bloody hard to understand even if you've had a decent science education) ... are there others? Ideally with peer reviewed papers attached?
Not exhaustive but here's a start:
The folk at wikipedia have built an incomplete table of historical cosmologies: Cosmology but it needs further work especially in literature search. Some of the ideas mentioned in this RatSkep topic are also incomplete works in progress. For examples:
Inflation:
Wiki inflation cosmology & references
Guth, Alan H.; Kaiser, David I.; Nomura, Yasunori (2014). "Inflationary paradigm after Planck 2013". Physics Letters B. 733: 112–119. arXiv:1312.7619. Bibcode: 2014 PhLB..733..112G
Linde, Andrei (2014). "Inflationary cosmology after Planck 2013". arXiv:1402.0526
Conformal cyclic cosmology:
Wiki CCC & references
Penrose, R. Cycles of Time: An Extraordinary New View of the Universe, pub. Bodley Head 2010
Tod, P. The equations of Conformal Cyclic Cosmology. Gen Relativ Gravit 47, 17 (2015). https://doi.org/10.1007/s10714-015-1859-7, arXiv
Gurzadyan, V. G.; Penrose, R. (2018). "Apparent evidence for Hawking points in the CMB Sky". Monthly Notices Roy.Astron.Soc. 495 (2020) 3, 3403-3408 arXiv:1808.01740 DOI: 10.1093/mnras/staa1343
String gas cosmology:
STRING GAS COSMOLOGY AND STRUCTURE FORMATION
ROBERT H. BRANDENBERGER, ALI NAYERI, SUBODH P. PATIL and CUMRUN VAFA
International Journal of Modern Physics A Vol. 22, No. 21, pp. 3621-3642 (2007)
https://doi.org/10.1142/S0217751X07037159
ETA
Just to note that Paul J. Steinhardt has moved on from inflation and ekpyrotic ideas to a 'new' Bouncing Cosmology - as posted earlier in the topic. His web and links to papers anent is here