Emergent universe scenario via Quintom matter |
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| Authors: | Yi-Fu Cai Mingzhe Li Xinmin Zhang |
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| Affiliation: | 1. Department of Physics, McGill University, Montréal, QC, H3A 2T8, Canada;2. Department of Physics, Arizona State University, Tempe, AZ 85287, USA;3. Department of Physics, Nanjing University, Nanjing 210093, China;4. Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing University, Purple Mountain Observatory, Nanjing 210093, China;5. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The emergent universe scenario provides a possible alternative to bouncing cosmology to avoid the Big Bang singularity problem. In this Letter we study the realization of the emergent universe scenario by making use of Quintom matter with an equation of state across the cosmological constant boundary. We will show explicitly the analytic and numerical solutions of emergent universe in two Quintom models, which are a phenomenological fluid and a nonconventional spinor field, respectively. |
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