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arXiv · 2304.14222

London-like tensor modes of gravitational waves in cosmic string cosmology

Claudio Aravena-Plaza·Víctor Muñoz·Felipe A. Asenjo
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Abstract

From a classical analysis, we show that gravitational waves in a cosmological medium with equation of state $\omega=-1/3$ can follow a London-like equation, implying that some gravitational wave solutions present a decay for certain wavelengths. This scenario, corresponding to a cosmic string cosmology, induces an attenuation temporal scale on the gravitational wave propagation. We discuss on how these solutions impose a limit on the wavelength of the waves that can propagate, which depends on the type of spatial curvature and the energy density content of this type of cosmology.

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Claudio Aravena-Plaza, Víctor Muñoz, Felipe A. Asenjo. 2023-04-27. London-like tensor modes of gravitational waves in cosmic string cosmology. https://doi.org/10.1134/s0202289323040035

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