103 citations · 350 across the 15 of their papers we have counts for
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hep-th2011★ 103 cited
Instability of QCD ghost dark energy model
Esmaeil Ebrahimi, Ahmad Sheykhi
We investigate the instability of the ghost dark energy model against perturbations in different cases. To this goal we use the squared sound speed whose sign determines th…
hep-th2011★ 66 cited
Interacting Ghost Dark Energy in Brans-Dicke Theory
Esmaeil Ebrahimi, Ahmad Sheykhi
We investigate the QCD ghost model of dark energy in the framework of Brans-Dicke cosmology. First, we study the non-interacting ghost dark energy in a flat Brans-Dicke theory. In…
hep-th2011★ 48 cited
Tachyon Reconstruction of Ghost Dark Energy
A. Sheykhi, M. Sadegh Movahed, E. Ebrahimi
Recently it has been argued that a possible source for the dark energy may arise due to the contribution to the vacuum energy of the QCD ghost in a time-dependent background. In th…