Bouncing universe with Quintom matter

By Yi Cai, Taotao Qiu, Yun-Song Piao, Mingzhe Li, Xinmin Zhang. 2007

319 citations recorded by the source corpus.

The bouncing universe provides a possible solution to the Big Bang singularity problem. In this paper we study the bouncing solution in the universe dominated by the Quintom matter with an equation of state (EoS) crossing the cosmological constant boundary. We will show explicitly the analytical and numerical bouncing solutions in three types of models for the Quintom matter with an phenomenological EoS, the two scalar fields and a scalar field with a modified Born-Infeld action.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/609e1e4f9b053b67c6eb0affb4a28e20f0cfcbd7

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In Astronomy and Astrophysics

In Nuclear and High Energy Physics

Citations in the corpus

Bouncing Cosmologies: Progress and Problems (2016, unknown): “This is the quintom cosmology scenario [73].”
Nonsingular cosmology with a scale-invariant spectrum of cosmological perturbations from Lee-Wick theory (2008, background): “When applied to early universe cosmology, quintom models can lead to nonsingular cosmological backgrounds which correspond to a bouncing universe [6] [70].”
Exploring bouncing cosmologies with cosmological surveys (2014, background): “[24] that if such a bounce model describes a realistic universe within General Relativity, then motivated by the study of dark energy physics [25] a matter field with a so-called quintom scenario is needed that the equation-of-state parameter has to evolve below the cosmological constant boundary w ”
Non-singular cosmology in a model of non-relativistic gravity (2009, methodology): “The scenario of bouncing cosmology has been investigated in models motivated by various approaches to quantum gravity [18–23], and analyzed using effective field techniques by introducing energy-condition-violating matters [11, 24–26], while the generation of perturbation was studied in [27–34] (and”
Viscous Cosmology for Early- and Late-Time Universe (2017, background): “Additionally, non-singular bounces can be obtained using matter forms that violate the null energy condition [150, 151].”
Matter bounce in Horava-Lifshitz cosmology (2009, background): “As studied in detail in quintom bounce [19, 20, 34] scenarios, we take the scalar field to be oscillating during the contracting phase, with an amplitude A(t).”