A Focused Review of Quintom Cosmology: From Quintom Dark Energy to Quintom Bounce
Abstract
The recently released data of DESI DR2 favors a dynamical dark energy theory, with the equation of state crossing the cosmological constant boundary w=-1. In this paper, we briefly review quintom cosmology, especially the quintom bounce. We will give three examples of a quintom bounce and one example of a cyclic universe with quintom matter.
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