CONSTRAINED DYNAMICS OF TACHYON FIELD IN FRWL SPACETIME

Marko A. Dimitrijević, Dragoljub D. Dimitrijević, Goran Đorđević, Milan Milošević

DOI Number
https://doi.org/10.2298/FUPCT1901021D
First page
021
Last page
030

Abstract


In this paper, we continue the study of tachyon scalar field described by a Dirac-Born-Infeld (DBI) type action with constraints in the cosmological context. The proposed extension of the system introducing an auxiliary field in the minisuperspace framework is discussed. A new equivalent set of constraints is constructed, satisfying the usual regularity conditions.

Keywords

tachyon field, cosmology, constrained system, Dirac-Bergman algorithm

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References


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