Auflistung nach Schlagwort "Slow contraction"

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  • Entropy, black holes, and the new cyclic universe 
    Ijjas, Anna; Steinhardt, Paul J. (Amsterdam : North-Holland Publ., 2021)
    We track the evolution of entropy and black holes in a cyclic universe that undergoes repeated intervals of expansion followed by slow contraction and a smooth (non-singular) bounce. In this kind of cyclic scenario, there ...
  • Supersmoothing through slow contraction 
    Cook, William G.; Glushchenko, Iryna A.; Ijjas, Anna; Pretorius, Frans; Steinhardt, Paul J. (Amsterdam : Elsevier B.V., 2020)
    Performing a fully non-perturbative analysis using the tools of numerical general relativity, we demonstrate that a period of slow contraction is a “supersmoothing” cosmological phase that homogenizes, isotropizes and ...
  • The effects of multiple modes and reduced symmetry on the rapidity and robustness of slow contraction 
    Ijjas, Anna; Pretorius, Frans; Steinhardt, Paul J.; Sullivan, Andrew P. (Amsterdam [u.a.] : Elsevier, 2021)
    We demonstrate that the rapidity and robustness of slow contraction in homogenizing and flattening the universe found in simulations in which the initial conditions were restricted to non-perturbative variations described ...