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What are some alternative theories of the Big Bang? 


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Some remarkable examples of alternative cosmological theories to the Big Bang include variations on the Standard Model, quasi-steady-state cosmology, plasma cosmology, hypersphere universe models, and static models. These alternative theories differ from the standard model in various aspects such as CP violation, inflation, number of neutrino species, quark-hadron phase transition, dark matter, dark energy, nucleosynthesis scenarios, large-scale structure formation scenarios, and varying physical constants or gravity law. Some extreme alternative theories include tired-light hypotheses and other non-standard ideas. However, none of these alternative models have reached the same level of development as the standard model in explaining cosmological observations.

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The provided paper discusses an alternative quantization scheme for the gravitational Hamiltonian constraint of the k=-1 Friedmann-Robertson-Walker model, which replaces the classical big-bang singularity with an asymmetric quantum bounce. However, it does not discuss other alternative theories of the Big Bang.
The paper discusses alternative models to the standard Big Bang theory, including the possibility of degenerate neutrinos, brane-world cosmology, and the inclusion of a decaying cosmological term.
Reference EntryDOI
13 Mar 2019
1 Citations
The paper discusses alternative theories to the standard hot big-bang model, including the idea of a static universe and the concept of a cyclically evolving universe.
Open accessJournal ArticleDOI
8 Citations
The paper discusses alternative cosmological theories to the standard model, including variations on the Standard Model, quasi-steady-state cosmology, plasma cosmology, universe models as a hypersphere, static models, and tired-light hypotheses.
The paper discusses various alternative cosmological theories, including variations on the Standard Model, quasi-steady-state cosmology, plasma cosmology, universe models as a hypersphere, and static models.

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