Tachyon field non-minimally coupled to massive neutrino matter

2016

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DOI 10.1088/1475-7516/2016/07/032
Data confidence 70 medium
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Abstract

In this paper, we consider rolling tachyon, with steep run-away type of potentials non-minimally coupled to massive neutrino matter. The coupling dynamically builds up at late times as neutrino matter turns non-relativistic. In case of scaling and string inspired potentials, we have shown that non-minimal coupling leads to minimum in the field potential. Given a suitable choice of model parameters, it is shown to give rise to late-time acceleration with the desired equation of state.