DARK ENERGY WITH POLYTROPIC EQUATION-OF-STATE
2008 ◽
Vol 23
(37)
◽
pp. 3187-3198
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Keyword(s):
Equation-of-state parameter plays a significant role for guessing the real nature of dark energy. Here polytropic equation-of-state p = ωρnis chosen for some of the kinematical Λ-models viz., [Formula: see text], [Formula: see text] and Λ ~ ρ. Although in dust cases (ω = 0) closed form solutions show no dependency on the polytropic index n, but in non-dust situations some new possibilities are opened up including phantom energy with supernegative (ω < -1) equation-of-state parameter.
2017 ◽
Vol 15
(01)
◽
pp. 1830001
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2017 ◽
Vol 2017
(06)
◽
pp. 012-012
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Keyword(s):
2010 ◽
Vol 19
(03)
◽
pp. 305-316
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2019 ◽
Vol 34
(30)
◽
pp. 1950184
2009 ◽
Vol 18
(03)
◽
pp. 389-396
◽
2012 ◽
Vol 10
◽
pp. 85-94
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2005 ◽
Vol 14
(02)
◽
pp. 355-362
◽
2013 ◽
Vol 91
(4)
◽
pp. 351-354
◽
Keyword(s):