Browsing by Author "LHR TP 7419"

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    Thermodynamics in Non-Zero Torsion Theory
    (Library Information Services COMSATS University Islamabad Lahore Campus, 2021) Nageen Pervaiz; FA19-RMT-001; LHR TP 7419; Dr. Shamaila Rani
    In thisthesis,westudythecosmicevolutionoftheacceleratinguniverse in theEinstein-Cartan-Sciama-Kibbletheorybyusing°athomogeneous and isotropicmodel.Inthisregards,weconsidersomeparameterizations of theequationofstateparameter ! in termsofredshiftfunction.This parametrization maybeaTaylorseriesextensioninthescalefactor,a Taylorseriesextensionintheredshiftoranyothergeneralparametrization of !. Weusegraphicalbehaviortoexplorethecosmologicalparameters suchasdeceleration,Om-diagnostic,state¯nderandsquaredspeedofsound parameters. Also,weexaminethevalidityofthegeneralizedsecondlaw of thermodynamicsatapparenthorizontakingintoaccountBekenstein- Hawkingentropy.