暴涨宇宙学与暗能量

DarkEnergyanditsconnectionstoNeutrinos,BaryogenesisandDarkMatterXinminZhangInstituteofHighEnergyPhysics,BeijingP.R.ChinaConcordancemodeloftheCosmology:Inflation%)73(DE%)23(DM%)4(BOutlineofthetalkI.BriefreviewontheconstraintsontheDarkEnergyII.AnewscenarioofDarkEnergymodel:QuintomIII.InteractingDarkEnergy:a)Connectiontoneutrinos:MassvaryingNeutrinosb)ConnectiontoBaryogenesis:QuintessentialLeptogenesisc)ConnectiontoDarkmatter:NeutralinomassvaryingSUSYinginteractingDE:QuintessinoDarkmatterIV.SummaryDarkEnergy:*Negativepressure:)3(34/pGaa0a3/1/03pwp*Smoothlydistributed,(almost)notclusteringCandidates:*Cosmologicalconstant(orvacuumEnergy)gGT81/pweV10~m)102(83-43eVGp12010~/obthBut:,cosmologicalconstantproblem!*DynamicalField:Quintessence,K-essence,Phantometc)(21QVQQLVQpVQQQ2221,2111QwI.ConstraintsontheDarkEnergyAquantitycharacterizingthepropertyofDarkEnergy:Equationofstate:w(Z)=P/ρForexample:*VacuumEnergy:w=-1*Quintessence:*Phantom:Usingtherecent157SupernovadatapublishedbyRiessetal.astro-ph/0402512*At2σ,thecosmologicalconstantfitswellthedata*DatamildlyfavourarunningoftheWacross-1Modelindependentanalysiswiththefollowingparameterization：1，w(z)=w_0+w_1*z2，w(z)=w_1+w_a*z/(1+z)(E.Linder)Feng,Wang&X.ZhangAstro-ph/0404224Huterer&CoorayAstro-ph/0404062astro-ph/0407259,SteenHannestad,EdvardMortsellProbingDarkEnergywithSupernovae:aconcordantoraconvergentmodel?Authors:J.-M.Virey,A.Ealet,C.Tao,A.Tilquin,A.Bonissent,D.Fouchez,P.Taxil,astro-ph/0407452Twocomments:1.Parameterizationdependent2.Effectsofperturbationszwwzw10)(Astro-ph/0507170W1=20Astro-ph/0507482II.ThenewscenarioofDarkEnergy:QuintomIftherunningofw(Z),especiallyatransitionacross–1,confirmedinthefuture,bigchallengetothemodelbuilding*Vacuum:w=-1*Quintessence:*Phantom:*K-essence:orbutcannotacross-1(Vikman:astro-ph/0407107)AnewscenanioofDarkEnergy:Quintom(Zhangetal.Astro-ph/0404224)Forex:singlescalar:multi-scalar:Detailedstudyon:Two-fieldmodelsofQuintomDarkEnergy-Xiao-feiZhang,HongLi,YunsongPiaoandXinminZhangI.Quintommodelwithtwoscalarfields:II.QuintommodelwithPhantomfieldandneutrino:Astro-ph/0501652Important:NeutrinomassvaryTheconstraintsonthecouplingofNeutrinostoDEfromSN-byLiHong,FengBo,Jun-QingXiaandXinminZhang,astro-ph/0509272ConsistentwithQuintom:Phantom⊕Neutrinosc≠0:InteractingRecentDevelopmentonQuintom(“精灵”)DarkEnergyModelI.AlotofrecenttheoreticalstudiesonthemodelsofDarkEnergywithequationofstateacross-1Oneexample:II.ImplicationsinCMB:W.Huastro-ph/0410680R.CaldwellandDoran:astro-ph/0501104G.Zhao,J.Xia,M.Li,B.FengandX.Zhang:astro-ph/0507482III.Differentfromcosmologicalconstant,QuintessenceandPhantominthedeterminationoftheevolutionsandthefateoftheuniverseAlotofstudiesontheevolutionofUNIVERSEwithwacross-1justgiveoneexample:OscillatingQuintomA.Anisimov,E.Babichev,B.A.Vikman,astro-ph/0504560QuintomwithSinglescalarfieldForequivalenttotwofieldsRecallsinglescalarfieldslikeQuintessence,PhantomandKessencecannotcross-1MingzheLi,BoFeng,XinminZhang,hep-ph/0503268awawaw)1()(0Astro-ph/0410680ImplicationofQuintomdarkenergyinCMBG.Zhao,J.Xia,M.Li,B.FengandX.Zhangastro-ph/0507482OscillatingQuintomandtheRecurrentUniverse:astro-ph/0407432BoFeng,MinzheLi,YunsongPiao,XinminZhangzwwzw10)(Note:Resultsparametrizationdependentastro-ph/0411501astro-ph/0503230III.InteractingDarkEnergyCurrentdatafavourQuintomQuintomDarkEnergyisdescribedbydynamicalscalarfieldsExpectedalsotointeractwiththematterdirectly.Opennewpossibilitiesforthedetection.*DirectcouplingwithordinarymatterConstraintfromthelimitsonthelong-rangeforce*InteractingwithDM(Peeblesetal)*Interactingwithneutrinos*DerivativelyinteractingwithmatterfieldsImplicationsofInteractingDEI.InteractingwithNeutrino:massvaryingneutrinosII.DerivativelyIneractingwithLeptonCurrent:QuintessentialLeptogenesisIII.InteractingwithDarkMatter:massvaryingNeutralinoQuintessinoDarkMatterMllQRcRNNQmDirectcouplings:NeutrinomassesvaryXinminZhangetal.PRD68,087301(2003)DarkEnergyandneutrinos：AnyconnectionbetweenDarkEnergyandneutrinos?1.ΛCDM:2.QCDM:443)()10(mevplQMmeVm23310Ifyes,veryinteresting:2ofthebiggestdiscoveriesintherecentyearsConnections-----InteractionsbetweendarkenergyandneutrinosTwotypescouplingsDerivativecouplings:QuintessentialLeptogenesis-M.Li,X.Wang,B.Feng,X.ZhangCPTviolationPhys.Rev.D65(2002)103511Where,Correspondingtheformulafortheneutrinomassupperlimitnowis:Astro-ph/0309800NewfeaturesofneutrinoDarkEnergymodel:I.UnliketheordinarymatterthemassiveneutrinohasequationofstateII.NeutrinoplaysanimprotantroleintheevolutionoftheuniverseIII.MassvaryingneutrinoseffectsonCMB,LSSIV.TestingmassvaryingneutrinoswithGRBV.Testingmassvaryingwithneutrinooscillations0wCosmologicalevolutionofInteractingDarkEnergymodelswithmassvaryingneutrinoshep/ph/0412002-XiaojunBi,BoFeng,HongLi,XinminZhangAstro-ph/0503349TestingmassvaryingneutrinowithshortGRB-HongLi,ZigaoDai,XinminZhang:hep-ph/0411228NeutrinooscillationprobesofDarkEnergyD.B.Kaplanetal.,PRL93,091801(2003);V.Bargeretal.,hep-ph/0502196;M.Cire