Corpus ID: 236469284

Clarifying transfer function approximations for the large-scale gravitational wave background in $\Lambda$CDM

@inproceedings{Kite2021ClarifyingTF,
  title={Clarifying transfer function approximations for the large-scale gravitational wave background in \$\Lambda\$CDM},
  author={Thomas D. Kite and Jens Chluba and Andrea Ravenni and Subodh P. Patil},
  year={2021}
}
The primordial gravitational wave background (GWB) offers an exciting future avenue of discovery for new physics. Its information content encodes multiple eras in the early Universe’s history, corresponding to many orders of magnitude in frequency and physical scale to be measured today. By numerically solving for the GW transfer functions we provide simple yet accurate formulas describing the average power of the large-scale energy spectrum of the GWB for arbitrary primordial tensor power… Expand
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References

Clarifying transfer function approximations
  • 2008