Journal
PHYSICAL REVIEW D
Volume 81, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.81.123523
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Funding
- EPSRC
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We examine an extension of the quintom scenario of dark energy, in which a canonical scalar field and a phantom field are coupled through a kinetic interaction. We perform a phase-space analysis and show that the kinetic coupling gives rise to novel cosmological behavior. In particular, we obtain both quintessence-like and phantomlike late-time solutions, as well as solutions that cross the phantom divide during the evolution of the Universe.
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