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標題:Conformally related Einstein-Langevin equations for metric fluctuations in stochastic gravity
學年105
學期1
出版(發表)日期2016/09/08
作品名稱Conformally related Einstein-Langevin equations for metric fluctuations in stochastic gravity
作品名稱(其他語言)
著者Seema Satin; H. T. Cho; Bei Lok Hu
單位
出版者
著錄名稱、卷期、頁數Physical Review D 94, p.064019
摘要For a conformally coupled scalar field we obtain the conformally related Einstein-Langevin equations, using appropriate transformations for all the quantities in the equations between two conformally related spacetimes. In particular, we analyze the transformations of the influence action, the stress energy tensor, the noise kernel and the dissipation kernel. In due course the fluctuation-dissipation relation is also discussed. The analysis in this paper thereby facilitates a general solution to the Einstein-Langevin equation once the solution of the equation in a simpler, conformally related spacetime is known. For example, from the Minkowski solution of Martín and Verdaguer, those of the Einstein-Langevin equations in conformally flat spacetimes, especially for spatially flat Friedmann-Robertson-Walker models, can be readily obtained.
關鍵字
語言英文(美國)
ISSN
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,電子版
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