2016/02/29 by Pitayuth Wongjun · 1 citation
Mathematics · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Black Holes and Theoretical Physics #Classical mechanics #Cosmology #Cosmology and Gravitation Theories #Dark energy #Dark matter #Equation of state #Field (mathematics) #Geometry #Lagrangian #Mathematical physics #Mathematics #Particle physics #Perfect fluid #Physics #Quantum mechanics #Scalar (mathematics) #Scalar field #astro-ph.CO #gr-qc
paper · pdf · doi:10.1103/physrevd.96.023516
published as Phys. Rev. D 96, 023516 (2017) · 21 pages, no figure, V2 minor corrected and added a subsection, V3 typos corrected, published version
openalex created_date 2016/06/24 · openalex publication_date 2017/07/17 · arxiv created 2017/07/19 · arxiv updated 2017/07/26 · openalex updated_date 2026/08/05
A Lagrangian formulation of perfect fluid due to a noncanonical three-form field is investigated. The thermodynamic quantities such as energy density, pressure and the four velocity are obtained and then analyzed by comparing with the k-essence scalar field. The nonrelativistic matter due to the generalized three-form field with the equation of state parameter being zero is realized while it might not be possible for the k-essence scalar field. We also found that nonadiabatic pressure perturbations can be possibly generated. The fluid dynamics of the perfect fluid due to the three-form field corresponds to the system in which the number of particles is not conserved. We argue that it is interesting to use this three-form field to represent the dark matter for the classical interaction theory between dark matter and dark energy.