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1、有效场论、全息原理暴胀宇宙与暗能量EffectiveFieldTheory&HolographicPrincipleAneffectivefieldtheorythatcansaturatetheequationnecessarilyincludesmanystateswithSchwarzschildradiusmuchlargerthantheboxsize.AneffectivequantumfieldtheoryisexpectedtobecapableofdescribingasystematatemperatureT,providedthatT≤
2、Λ,solongasT≫1/L.ThermalenergyEntropyThecorrespondingSchwarzschildradiusEntropyToavoidthesedifficultiesCohen-Kaplan-NelsonproposeastrongerconstraintontheIRcutoff1/LwhichexcludesallstatesthatliewithintheirSchwarzschildradius.SincethemaximumenergydensityintheeffectivetheoryisΛ^4,theco
3、nstraintonLisThermalenergy~~SchwarzschildradiusLocalquantumfieldtheoryappearsunlikelytobeagoodeffectivelowenergydescriptionofanysystemcontainingablackhole,andshouldprobablynotattempttodescribeparticlestateswhosevolumeissmallerthantheircorrespondingSchwarzschildradius.HolographicPri
4、nciple:(Cohen-Kaplan-Nelson,PRL1999)InEffectiveFieldTheory,UVCut-offisrelatedtotheIRCut-offduetothelimitsetbytheformationofaBlackHoleEffectiveTheorydescribesallstatesofsystemexceptthosealreadycollapsedtoaBlackHole.VacuumenergydensityviaquantumfluctuationEffectiveFieldTheory&Hologra
5、phicPrincipleHolographicDarkEnergyHolographicDarkEnergyModel:DarkenergydensityisgivenbythevacuumenergydensitycausedviaquantumfluctuationCharacteristiclengthscaleofuniverseChoosingdifferentcharacteristiclengthscaleLVariousHolographicDarkEnergyModelsReviewsee:M.Li,X.-D.Li,S.Wang,Y.W
6、ang,CTP.56,525-604(2011)[arXiv:1103.5870].M.Li,Phys.Lett.B603,1(2004)[arXiv:hep-th/0403127].R.-G.Cai,Phys.Lett.B657,228-231(2007)[arXiv:0707.4049[hep-th]].ModelparameterReducedPlanckmassHolographicDarkEnergyCharacterizedbyConformal-age-likeLength(CHDE)Z.P.Huang,YLW,arXiv:1202.2590,
7、Z.P.Huang,YLW,arXiv:1202.3517 [astro-ph.CO]Conformal-age-likelengthscaleofuniverseMotivatedfrom4Dspace-timevolumeofFRWUniverseHolographicDarkEnergyCharacterizedbyConformal-age-likeLength(CHDE)FractionalenergydensityofCHDEFriedmanEquationEquationofMotionofCHDEConservationofenergyden
8、sityFriedmanequationEoSfor