Constrained Dynamics of Tachyon Field in FRWL Spacetime
| Autor: | Milan Milosevic, Goran S. Djordjevic, A Marko Dimitrijevic, Dragoljub D. Dimitrijevic |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Field (physics)
Spacetime 010308 nuclear & particles physics General Engineering FOS: Physical sciences Ocean Engineering Context (language use) General Relativity and Quantum Cosmology (gr-qc) 01 natural sciences Action (physics) General Relativity and Quantum Cosmology Theoretical physics Auxiliary field Tachyon Minisuperspace 0103 physical sciences 010306 general physics Scalar field Mathematics |
| Popis: | In this paper we continue 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. 10 pages, to be published in the Special Issue of the Facta Universitatis Series: Physics, Chemistry and Technology devoted to the SEENET-MTP Balkan Workshop BSW2019 (3-14 June 2018, Nis, Serbia) |
| Databáze: | OpenAIRE |
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