简介:WeassumegeneralizedghostPilgrimdarkenergy(GGPDE)modelinthepresenceofcolddarkmatterinflatFRWuniverse.WithsuitablechoiceofinteractiontermbetweenGGPDEandcolddarkmatter,weinvestigatethenatureofequationofstateparameterforGGPDE.Also,weinvestigatethenaturesofdynamicalscalarfieldmodels(suchasquintessence,tachyon,k-essence,anddilatondarkenergy)andconcernedpotentialsthroughthecorrespondencephenomenonbetweenGGPDEandthesemodels.
简介:Inthiswork,webrieflydiscussanovelclassofmodifiedgravitylikef(T,TG)gravity.Inthisbackground,weassumethenewagegraphicversionofpilgrimdarkenergyandreconstructf(T,TG)modelsfortwospecificvaluesofs.Wealsodiscusstheequationofstateparameter,squaredspeedofsoundandwDE-wDEplaneforthesereconstructedf(T,TG)models.Theequationofstateparameterprovidesphantom-likebehavioroftheuniverse.ThewDE-wDEplanealsocorrespondstoΛCDMlimit,thawingandfreezingregionsforbothmodels.