A Focused Review of Quintom Cosmology: From Quintom Dark Energy to Quintom Bounce
Tao-tao Qiu, Yifu Cai, Yang Liu, Si-Yu Li, Jarah Evslin, Xinmin Zhang
TL;DR
This paper reviews quintom cosmology, focusing on models where dark energy's equation of state crosses -1, including examples of quintom bounce and cyclic universe scenarios, in light of recent DESI DR2 data.
Contribution
It provides a concise overview of quintom models, highlighting specific bounce and cyclic universe examples that incorporate recent observational insights.
Findings
DESI DR2 data supports dynamical dark energy crossing w=-1
Examples of quintom bounce models are presented
A cyclic universe model with quintom matter is discussed
Abstract
The recently released data of DESI DR2 favors a dynamical dark energy theory, with the equation of state crossing the cosmological constant boundary . 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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Taxonomy
TopicsCosmology and Gravitation Theories · Advanced Mathematical Theories and Applications · Noncommutative and Quantum Gravity Theories