Strong-coupling dynamics and entanglement in de Sitter space

@article{CasalderreySolana2020StrongcouplingDA,
  title={Strong-coupling dynamics and entanglement in de Sitter space},
  author={Jorge Casalderrey-Solana and Christian Ecker and David Mateos and Wilke van der Schee},
  journal={Journal of High Energy Physics},
  year={2020},
  volume={2021}
}
We use holography to study the dynamics of a strongly-coupled gauge theory in four-dimensional de Sitter space with Hubble rate H. The gauge theory is non-conformal with a characteristic mass scale M. We solve Einstein’s equations numerically and determine the time evolution of homogeneous gauge theory states. If their initial energy density is high compared with H4 then the early-time evolution is well described by viscous hydrodynamics with a non-zero bulk viscosity. At late times the… 
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