ON THE EFFECTIVE EQUATION OF STATE OF DARK ENERGY
2010 ◽
Vol 19
(14)
◽
pp. 2259-2264
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Keyword(s):
In an effective field theory model with an ultraviolet momentum cutoff, there is a relation between the effective equation-of-state of dark energy and the ultraviolet cutoff scale. It implies that a measure of the equation of state of dark energy different from minus one, ω ≠ -1, does not rule out vacuum energy as dark energy. It also indicates an interesting possibility that precise measurements of the infrared properties of dark energy can be used to probe the ultraviolet cutoff scale of effective quantum field theory coupled to gravity. In a toy model with a vacuum energy-dominated universe with a Planck scale cutoff, the dark energy effective equation of state is w eff ≈ -0.96.
2017 ◽
Vol 32
(06n07)
◽
pp. 1750037
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2017 ◽
Vol 2017
(12)
◽
pp. 014-014
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Keyword(s):
2006 ◽
Vol 21
(21)
◽
pp. 1683-1689
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Keyword(s):
2010 ◽
Vol 19
(03)
◽
pp. 305-316
◽
2015 ◽
Vol 30
(02)
◽
pp. 1550006
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Keyword(s):
2016 ◽
Vol 2016
(07)
◽
pp. 018-018
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Keyword(s):