22683.暗物質(zhì)和暗能量相互作用在宇宙微波背景輻射中的印記

1、錄1引言42相互作用線性擾動理論72.1線性擾動理論中物質(zhì)的運動方程72.2規(guī)范條件和規(guī)范不變量93狀態(tài)方程含時的暗能量與暗物質(zhì)問的能m迀移113.1暗物質(zhì)與暗能量間的能量遷移113.2超粒子視界擾動穩(wěn)疋性133.3宇宙學(xué)參數(shù)在微波背景輻射譜中的簡并163.4數(shù)據(jù)擬合結(jié)果194暗物質(zhì)在暗能量中的彈性散射244.1彈性散射的擾動理論244.2擾動穩(wěn)定性分析284.3緊束縛近似304.4暗散射對微波背景輻射譜的影響

2、324.5數(shù)據(jù)擬合結(jié)果375總結(jié)411AbstractBasedontheastronomyobservationsitisclearthatouruniverseisunderacceleratingexpansion.Toexplaintheacceleratingexpansionpeopleassumesthatthereisanothercomponentintheuniversecalled“darkenergy，，.

3、Darkenergydarkmatterdominatetheuniversetoday.Intheydarkenergyanddarkmattercancoupletoeachother.Inthiswkwestudiedtwopossiblefmsoftheinteraction.Firstwegeneralizedthecosmologicalmodelinwhichenergytransfersbetweendarkmatter

4、anddarkenergytomodelwithtimedependentdarkenergyequationofstate.ThenweproposedaninteractionmodelanalogoustoThomsonscatteringinwhichdarkmatterparticlesscatteroffdarkenergy.Weexaminethestabilitiesinperturbationfmalismofboth

5、models.Weexpledtheimpactoftheinteractionsonthecosmicmicrowavcbackgroundthedegeneracyamongcouplingbetweendarksectsdarkenergyequationofstatematterabundance.Finallywetrytobreakthedegcneracybydoingglobalfittingusingcomplemen