Gravitational waves in warped compactifications

A bstract We study gravitational waves propagating on a warped Minkowski space-time with D − 4 compact extra dimensions. While Kaluza-Klein scales are typically too high for any current detection, we analyse how the warp factor changes the Kaluza-Klein spectrum of gravitational waves. To that end we...

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Vydáno v:	The journal of high energy physics Ročník 2020; číslo 6; s. 100 - 38
Hlavní autoři:	Andriot, David, Tsimpis, Dimitrios
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2020 Springer Nature B.V Springer SpringerOpen
Témata:	Astrophysics Classical and Quantum Gravitation Classical Theories of Gravity Elementary Particles Flux compactifications General Relativity and Quantum Cosmology Gravitation Gravitational waves Green's functions High energy physics High Energy Physics - Phenomenology High Energy Physics - Theory Minkowski space p-branes Phenomenology Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Regular Article - Theoretical Physics Relativity Theory Spacetime String Theory Superstring Vacua Toruses Wave propagation Classical Theories of Gravity Flux compactifications Superstring Vacua p-branes numerical calculations membrane model space-time: Minkowski string: compactification compactification: warped scale: Kaluza-Klein gravitational radiation: spectrum torus: any-dimensional higher-dimensional
ISSN:	1029-8479, 1126-6708, 1029-8479
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Popis
Shrnutí:	A bstract We study gravitational waves propagating on a warped Minkowski space-time with D − 4 compact extra dimensions. While Kaluza-Klein scales are typically too high for any current detection, we analyse how the warp factor changes the Kaluza-Klein spectrum of gravitational waves. To that end we provide a complete and explicit expression for the warp factor, as well as the Green’s function, on a d -dimensional torus. This expression differs from that of braneworld models and should find further uses in string compactifications. We then evaluate the Kaluza-Klein spectrum of gravitational waves. Our preliminary numerical results indicate not only a deviation from the standard toroidal spectrum, but also that the first masses get lowered due to the warp factor.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14
ISSN:	1029-8479 1126-6708 1029-8479
DOI:	10.1007/JHEP06(2020)100