Approaches to linear local gauge-invariant observables in inflationary cosmologies

Approaches to linear local gauge-invariant observables in inflationary cosmologies
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暴涨宇宙学中线性局域规范不变可观测量的方法

DOI:
10.1088/1361-6382/aabcb7
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发表时间:
2018
影响因子:
3.5
通讯作者:
Igor Khavkine
Igor Khavkine
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
M. Fröb;Thomas;Igor Khavkine

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我们回顾和联系两个最近的互补建设的线性局部规范不变的宇宙学微扰的一般空间平坦的单场暴胀宇宙学观测。在简要讨论了它们的物理意义后,我们给出了两组观测量之间的显式、协变和互可逆变换,从而解决了关于它们等价性的任何疑问。通过这种方式,我们得到了一个几何解释,并显示了这两组观测值的完备性,而以前这些属性中的每一个都只适用于其中一个。
We review and relate two recent complementary constructions of linear local gauge-invariant observables for cosmological perturbations in generic spatially flat single-field inflationary cosmologies. After briefly discussing their physical significance, we give explicit, covariant and mutually invertible transformations between the two sets of observables, thus resolving any doubts about their equivalence. In this way, we get a geometric interpretation and show the completeness of both sets of observables, while previously each of these properties was available only for one of them.
DOI: 10.1088/0264-9381/31/21/215004
发表时间: 2014-03
影响因子: 3.5
作者:
Thomas-Paul Hack
通讯作者: Thomas-Paul Hack
DOI: 10.1016/j.physletb.2010.09.050
发表时间: 2010
期刊: Fuel and Energy Abstracts
影响因子: --
作者:
E.O. Kahya;V.K. Onemli;R.P. Woodard
通讯作者: R.P. Woodard