Domain walls inside localised orientifolds

Blåbäck, Johan; Woerd, E. van der; Riet, Thomas Van; Williams, Matthew R.

doi:10.48550/arxiv.1510.03984

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“…where −E 1 (−x) = E i (x) is the exponential integral function. Using its series expansion, one obtains for σ 2 ∼ 0, with γ being the Euler-Mascheroni constant, e − σ 2 u (u → ∞) , 11 A different method for d = 3 was proposed in [61].…”

Section: More On the Spectrum Evaluationmentioning

confidence: 99%

Gravitational waves in warped compactifications

Andriot,

Tsimpis

2019

Preprint

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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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Section: More On the Spectrum Evaluationmentioning

confidence: 99%