Kaniadakis Holographic Dark Energy by Using Hybrid Scale Factor

JOURNAL OF POLYMER & COMPOSITES(2023)

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摘要
We carry out the work on Kaniadakis holographic dark energy KHDE with hybrid expansion law by taking the scale factor containing both exponent and exponential form. Therby revealing the present state of accelerating and expanding universe in the flat Friedmann-Robertson-Walber universe. The deceleration parameter q portrays whether he universe is decelerating or accererating. q greater than zero suggests the universe is slowing down or getting decelerated and q less than zero indicates that universe is speeding up or accelerated..Since in present work the value of q lies between -1 < q < 1, so we conclude that the universe which was decelerating in past is currently expanding as well as accelerating.The deceleration parameter q obtained in the present model of Kaniadakis suggests that universe's expansion from decelerating to an accelerated phase of the present universe.The present work is well consistent with the thermal history of the universe as well as compatible with the observations. The positive value of EoS parameter signifies matter dominated universe at large red shift z > 0 i.e. EoS parameter lies in the quintessence region. In the present model EoS parameter do not cross the phantom line even at future z= -1, which is considered to be the dark energy dominated phase and is responsible for the current accelerated phase of the universe. The equation of state parameter EoS replicate the important cosmological behaviour where omega(kD). can be quintessence-like, phantom-like or cross the phantom divide before or after the present epoch.
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关键词
KHDE,FLRW universe,quientessence,phantom,EoS parameter,scale factor.
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