Paradox of soft singularity crossing and its resolution by distributional cosmological quantities

  title={Paradox of soft singularity crossing and its resolution by distributional cosmological quantities},
  author={Zolt{\'a}n Keresztes and L'aszl'o 'A. Gergely and Alexander Yu. Kamenshchik},
  journal={Physical Review D},
A cosmological model of a flat Friedmann universe filled with a mixture of anti-Chaplygin gas and dust-like matter exhibits a future soft singularity, where the pressure of the anti-Chaplygin gas diverges (while its energy density is finite). Despite infinite tidal forces the geodesics pass through the singularity. Due to the dust component, the Hubble parameter has a non-zero value at the encounter with the singularity, therefore the dust implies further expansion. With continued expansion… 

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