23184.bransdocle宇宙中暗能量及其熱力學(xué)描述

1、遼寧師范大學(xué)碩士學(xué)位論文BransDocle宇宙中暗能量及其熱力學(xué)描述姓名：張丹丹申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：理論物理指導(dǎo)教師：吳亞波201205ThedarkenergymodelsandthermodynamicdescriptionintheBransDicketheoryAbstractResentyears，observationsoftypeIasupernovae，accuratedateOnthecosmicmicrowav

2、ebackgroundandlargescalestructureanalysisshowedthatOUTuniverseiSatthestageofac—celeratingHowtoexplaintheacceleratedexpansionoftheuniversebecomeoneofthepopularquestionsTherearetwomaintheorytoexplaintheproblem，oneofthemiSt

3、oconsidermodi—fledtheoriesofgravitywhichessentiallyistnodifythepartofgeometryinEinstein’Sequation；anotheroneistointroduceanexoticcomponentwithlargenegativepressurenameddarkenergywhichcallprovidetheexclusionwhichcounterac

4、tthegravitationThereareavarietyofmodelsofdarkenergytoexplaintheexpansionofouruniverse，theyhavetheirownadvantageorweaknessInthispaperwefirstintroducethebackgroundknowledgeofmoderncosmologydarkenergymodelsaswellasthebasick

5、nowledgeofblackholethermodynamicsAndtllendescribedholographicdarkenergymodelandnewagegraphicdarkenergymodelinBrans—Dicketheorygiventheequmionsofstateparameteranddecelerationparameterofthesetwomodels，respectivelyAfteranal

6、ysiswefountlthatforthesetwomodelsintheBransDicketheoryifweselecttheappropriateparametersthatthephantomcrossingCanbeconstructedNotonlyaretheybeuerabletoacceleratetheexpansionoftheuniverse，butalseturnedtotheformofEinsteint

7、heoryneeffectofinteractionbetweendarkenergyanddarkmatteristhermodynamicallyinterpretedasasmallfluctuationaroundthethermalequilibriumThereforweanalysistheminthermodynamicsArelationbetweentheinteractiontermofthedarkcompone