314 citations · 1.9k across the 30 of their papers we have counts for
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hep-th2007★ 22 cited
Bridging geometries and potentials in DBI cosmologies
Luis P. Chimento, Ruth Lazkoz
We investigate the link between the warp function and the potential in DBI cosmologies in connection with the possibility they represent power-law solutions. A prescription is give…
hep-th2004
Tracking solutions in tachyon cosmology
J. M. Aguirregabiria, Ruth Lazkoz
We perform a thorough phase-plane analysis of the flow defined by the equations of motion of a FRW universe filled with a tachyonic fluid plus a barotropic one. The tachyon potenti…