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Correspondence between Electro-Magnetic Field and other Dark Energies in Non-linear Electrodynamics

By Sayani Maity, Shuvendu Chakraborty and Ujjal Debnath

Abstract

In this work, we have considered the flat FRW model of the universe filled with electro-magnetic field. First, the Maxwell's electro-magnetic field in linear form has been discussed and after that the modified Lagrangian in non-linear form for accelerated universe has been considered. The corresponding energy density and pressure for non-linear electro-magnetic field have been calculated. We have found the condition such that the electro-magnetic field generates dark energy. The correspondence between the electro-magnetic field and the other dark energy candidates namely tachyonic field, DBI-essence, Chaplygin gas, hessence dark energy, k-essenece and dilaton dark energy have been investigated. We have also reconstructed the potential functions and the scalar fields in this scenario.Comment: 11 pages, 7 figure

Topics: Physics - General Physics, General Relativity and Quantum Cosmology
Year: 2011
DOI identifier: 10.1142/S0218271811020317
OAI identifier: oai:arXiv.org:1104.2269
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