Quantum break-time of de Sitter

  title={Quantum break-time of de Sitter},
  author={Gia Dvali and C{\'e}sar G{\'o}mez and Sebastian Zell},
  journal={Journal of Cosmology and Astroparticle Physics},
  pages={028 - 028}
The quantum break-time of a system is the time-scale after which its true quantum evolution departs from the classical mean field evolution. For capturing it, a quantum resolution of the classical background—e.g., in terms of a coherent state—is required. In this paper, we first consider a simple scalar model with anharmonic oscillations and derive its quantum break-time. Next, following [1], we apply these ideas to de Sitter space. We formulate a simple model of a spin-2 field, which for some… 

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