Statefinder Diagnostic for Variable Modified Chaplygin Gas in LRS Bianchi Type I Universe

K. S. Adhav

Advances in Mathematical Physics, 2012, vol. 2012, issue 1

Abstract: The Locally Rotationally Symmetric (LRS) Bianchi type I cosmological model with variable modified Chaplygin gas having the equation of state p = Aρ − B/ρα, where 0 ≤ α ≤ 1, A is a positive constant, and B is a positive function of the average‐scale factor a(t) of the universe (i.e., B = B(a)) has been studied. It is shown that the equation of state of the variable modified Chaplygin gas interpolates from radiation‐dominated era to quintessence‐dominated era. The statefinder diagnostic pair (i.e., {r, s} parameter) is adopted to characterize different phases of the universe.

Date: 2012
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https://doi.org/10.1155/2012/714350

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Persistent link: https://EconPapers.repec.org/RePEc:wly:jnlamp:v:2012:y:2012:i:1:n:714350

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