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Chattopadhyay, Surajit; Pasqua, Antonio

Holographic DBI-essence dark energy via power-law solution of the scale factor. (English) Zbl 1282.83063

Int. J. Theor. Phys. 52, No. 11, 3945-3952 (2013).
Summary: The present work reports a Holographic reconstruction of Dirac-Born-Infeld (DBI)-essence Dark Energy (DE) in a flat FRW universe. The scale factor \(a(t)\) is chosen in power law form. We have reconstructed the scalar field and potential and subsequently the equation of state (EoS) parameter \(\omega\) of the DBI-essence DE. The corresponding plots show increasing scalar field, decaying tension and decaying potential. The reconstructed EoS parameter stays below \(-1\), showing a phantom-like behavior. The stability of the reconstructed DBI-essence DE is investigated through squared speed of sound \(v_s^2\): its negative sign reveals that the holographically reconstructed DBI-essence is classically unstable.

Cited in 3 Documents

MSC:

83F05 Relativistic cosmology

Keywords:

DBI-essence; reconstruction; holography
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