Structure formation and the origin of dark energy

Simple item page
dc.creatorHossain, Golam Mortuza
dc.date2007-09-21
dc.date.accessioned2026-07-07T08:31:32Z
dc.date.available2026-07-07T08:31:32Z
dc.descriptionCosmological constant a.k.a. dark energy problem is considered to be one major challenge in modern cosmology. Here we present a model where large scale structure formation causes spatially-flat FRW universe to fragment into numerous `FRW islands' surrounded by vacuum. We show that this mechanism can explain the origin of dark energy as well as the late time cosmic acceleration. This explanation of dark energy does not require any exotic matter source nor an extremely fine-tuned cosmological constant. This explanation is given within classical general relativity and relies on the fact that our universe has been undergoing structure formation since its recent past.
dc.description4 pages, 2 figs
dc.identifierhttps://arxiv.org/abs/0709.3490
dc.identifierhttp://arxiv.org/abs/0709.3490
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/138527
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleStructure formation and the origin of dark energy
dc.typetext

Files

Collections

arXiv