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Lukash plane waves, revisited
- Source :
- JCAP, JCAP, 2021, 01, pp.052. ⟨10.1088/1475-7516/2021/01/052⟩
- Publication Year :
- 2020
- Publisher :
- arXiv, 2020.
-
Abstract
- The Lukash metric is a homogeneous gravitational wave which at late times approximates the behaviour of a generic class of spatially homogenous cosmological models with monotonically decreasing energy density. The transcription from Brinkmann to Baldwin-Jeffery-Rosen (BJR) to Bianchi coordinates is presented and the relation to a Sturm-Liouville equation is explained. The 6-parameter isometry group is derived. In the Bianchi VII range of parameters we have two BJR transciptions. However using either of them induces a mere relabeling of the geodesics and isometries. Following pioneering work of Siklos, we provide a self-contained account of the geometry and global structure of the spacetime. The latter contains a Killing horizon to the future of which the spacetime resembles an anisotropic version of the Milne cosmology and to the past of which it resemble the Rindler wedge.<br />Comment: Revised version. 34 pages, 5 figures. To be published in JCAP
- Subjects :
- High Energy Physics - Theory
cosmological model
geometry
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Geodesic
horizon: Killing
Vacuum state
[PHYS.MPHY]Physics [physics]/Mathematical Physics [math-ph]
FOS: Physical sciences
plane wave
General Relativity and Quantum Cosmology (gr-qc)
01 natural sciences
Cosmology
General Relativity and Quantum Cosmology
vacuum state
0103 physical sciences
energy: density
010306 general physics
Mathematical Physics
Mathematical physics
Physics
Milne
space-time: anisotropy
radiation: thermal
Spacetime
010308 nuclear & particles physics
Gravitational wave
[PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]
background: thermal
gravitational radiation
Astronomy and Astrophysics
Mathematical Physics (math-ph)
Killing horizon
Unruh effect
High Energy Physics - Theory (hep-th)
[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]
Rindler
Isometry group
Astrophysics - Cosmology and Nongalactic Astrophysics
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- JCAP, JCAP, 2021, 01, pp.052. ⟨10.1088/1475-7516/2021/01/052⟩
- Accession number :
- edsair.doi.dedup.....1bdbb94f1a67d927342fa30c098c0eda
- Full Text :
- https://doi.org/10.48550/arxiv.2008.07801