Gravitational waves in warped compactifications. (arXiv:1911.01444v1 [hep-th])
<a href="http://arxiv.org/find/hep-th/1/au:+Andriot_D/0/1/0/all/0/1">David Andriot</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Tsimpis_D/0/1/0/all/0/1">Dimitrios Tsimpis</a>
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 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.
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 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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