Tracking quintessence and k-essence in a general cosmological background

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dc.creatorDas, Rupam
dc.creatorKephart, Thomas W.
dc.creatorScherrer, Robert J.
dc.date2006-09-05
dc.date.accessioned2026-07-07T10:24:28Z
dc.date.available2026-07-07T10:24:28Z
dc.descriptionWe derive conditions for stable tracker solutions for both quintessence and k-essence in a general cosmological background, H^2 \propto f(ρ). We find that tracker solutions are possible only when η= d ln f /d ln ρis constant, aside from a few special cases, which are enumerated. Expressions for the quintessence or k-essence equation of state are derived as a function of ηand the equation of state of the dominant background component.
dc.description6 pages, no figures
dc.identifierhttps://arxiv.org/abs/gr-qc/0609014
dc.identifierhttp://arxiv.org/abs/gr-qc/0609014
dc.identifierPhys.Rev.D74:103515,2006
dc.identifierdoi:10.1103/PhysRevD.74.103515
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176200
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleTracking quintessence and k-essence in a general cosmological background
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