PARAMETRIZATION OF TACHYON FIELD

2006/11/27 by Ying Shao, M. Sharif, YING SHAO +4 · 1 citation
Physics and Astronomy · #Cosmology and Gravitation Theories #Quantum and Classical Electrodynamics #Relativity and Gravitational Theory #gr-qc

paper · pdf · doi:10.1142/s0217732307021809

published as Mod.Phys.Lett.A22:1813-1819,2007 · 10 pages, LaTex, accepted for publication in Modern Physics Letters A

arxiv created 2006/11/27 · openalex publication_date 2007/05/28 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We assume that universe is dominated by non-relativistic matter and tachyon field and reconstruct the potential of tachyon field directly from the effective equation of state (EOS) of dark energy. We apply the method to four known parametrizations of equation of state and discuss the general features of the resulting potentials.

Citations

• Tachyon couplings on non-BPS D-branes and Dirac-Born-Infeld action
• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• A theoretician's analysis of the supernova data and the limitations in determining the nature of dark energy
• k-Inflation

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