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In this scenario, the equation of state crosses[how?] a boundary[clarification needed] value for the cosmological constant (). The crossing can occur for increasing or decreasing values[clarification needed].
If this scenario exists[clarification needed], it may indicate how the universe avoids[clarification needed] Big Bangs[clarification needed], Big Rips, and other time-like singularities[clarification needed].
The Quintom Scenario was applied[how?][according to whom?] in 2008 to a model[which?] of inflationary cosmology without a Big Bang singularity. It was also applied[according to whom?][how?] in 2007 to a Big Bounce model of the universe.
- Dark Energy Constraints from the Cosmic Age and Supernova by Bo Feng, Xiulian Wang and Xinmin Zhang
- Crossing the Phantom Divide by Martin Kunz and Domenico Sapone
- A Model Of Inflationary Cosmology Without Singularity by Yi-Fu Cai, Taotao Qiu, Jun-Qing Xia and Xinmin Zhang
- Quintom Cosmology: theoretical implications and observations by Yi-Fu Cai, Emmanuel N. Saridakis, Mohammad R. Setare and Jun-Qing Xia
- arXiv:0909.2776v2 [hep-th] 22 Apr 2010 Quintom Cosmology: theoretical implications and observations
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