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A Focused Review of Quintom Cosmology: From Quintom Dark Energy to Quintom Bounce

Published 25 Nov 2025 in astro-ph.CO | (2511.19994v1)

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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