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arXiv · 2102.03084

Gravitational Waves from Preheating with Modified Gravitational-wave Propagation

Ke Wang·Qing-Guo Huang
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Abstract

We investigate how the production of gravitational waves (GWs) is affected by the GW velocity $(c_T)$ during preheating after inflation. For instance, we simulate the production of GWs after $\lambda\phi^4$ chaotic inflation, and find that GW spectrum is enhanced for $c_T<1$, but distorted (suppressed at low frequency, but enhanced at high frequency) for $c_T>1$.

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Ke Wang, Qing-Guo Huang. 2021-02-05. Gravitational Waves from Preheating with Modified Gravitational-wave Propagation. https://arxiv.org/abs/2102.03084

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