- #1
R. E. Nettleton
- 9
- 0
Currently, the favoured explanations for the accelerating expansion of the universe are the cosmological constant, and various scalar fields, most notably quintessence. All of these are mechanisms dependent on mathematical field properties.
My question is: do any alternative hypotheses exist which use more physical / exotic mechanisms, such as particles or spatial structures? How seriously are such propositions taken?
My question is: do any alternative hypotheses exist which use more physical / exotic mechanisms, such as particles or spatial structures? How seriously are such propositions taken?