2012/12/30 by Martiros Khurshudyan, Khurshudyan, Martiros · 1 citation
Biochemistry, Genetics and Molecular Biology · Economics, Econometrics and Finance · Physics and Astronomy · #Banking stability, regulation, efficiency #Cosmology and Gravitation Theories #FOS: Physical sciences #General Physics (physics.gen-ph) #General Relativity and Quantum Cosmology (gr-qc) #Geomagnetism and Paleomagnetism Studies #Microfinance and Financial Inclusion #Solar and Space Plasma Dynamics #gr-qc #physics.gen-ph
paper · pdf · doi:10.48550/arxiv.1301.0005
14 pages, 7 figures, typos corrected and references added. arXiv admin note: substantial text overlap with arXiv:1307.7859, and text overlap with arXiv:1210.0001 by other authors
openalex publication_date 2012/12/30 · arxiv created 2013/08/03 · arxiv updated 2013/08/06 · openalex created_date 2019/12/26 · openalex updated_date 2026/07/28
We consider a fluid described by a parameterized EoS of the general form P=(γ-1)ρ+p0+ωHH+ωH2H2+ωdHH \citeRen, where p0, ωH, ωH2 and ωdH are free parameters of the model, interacting with a Tachyonic field with a relativistic Lagrangian LTF=-V(ϕ)√1-∂iϕ∂iϕ. The acceleration of the Universe described by a scale factor a(t)=tn, (n>1). Under consideration of different forms of interaction the field ϕ and the potential V(ϕ) are recovered and graphical analysis performed. For illustration purposes we fixed values of parameters of the models to provide V → 0 for later stages of evolution, when t → ∞.