2008/11/25 by L. N. Granda · 1 citation
Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Cosmological constant #Cosmology #Cosmology and Gravitation Theories #Dark energy #Friedmann–Lemaître–Robertson–Walker metric #Galaxies: Formation, Evolution, Phenomena #Mathematical physics #Non-critical string theory #Physics #Quintessence #String (physics) #Tachyon #Tachyon condensation #Theoretical physics #gr-qc
paper · pdf · doi:10.1142/s0218271809015291
published as Int.J.Mod.Phys.D18 2009:1749-1764,2009 · 21 pages, 18 figures, 2 tables
arxiv created 2008/11/25 · openalex publication_date 2009/11/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We propose holographic quintessence and tachyon models of dark energy. The correspondence between the quintessence and tachyon energy densities with the holographic density allows the reconstruction of the potentials and the dynamics for the quintessence and tachyon fields, in the flat FRW background. The proposed infrared cutoff for the holographic energy density works for two cases of the constant α: for α < 1 we reconstruct the holographic quintessence model in the region before the ω = -1 crossing for the EoS parameter. The cosmological dynamics for α > 1 is also reconstructed for the holographic quintessence and tachyon models.