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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Published in:The journal of high energy physics Vol. 2020; no. 6; pp. 100 - 38
Main Authors: Andriot, David, Tsimpis, Dimitrios
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2020
Springer Nature B.V
Springer
SpringerOpen
Subjects:
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
Online Access:Get full text
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Summary: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.
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ISSN:1029-8479
1126-6708
1029-8479
DOI:10.1007/JHEP06(2020)100