Pre-big bang model has Planck problem
classification
🌀 gr-qc
keywords
bangplanckmodelpre-bigproblemuniverseadequateconstants
read the original abstract
The pre-big bang's kinetic driven inflationary mechanism is not an adequate form of inflation: the Planck length grows more rapidly than the scale factor. In order to explain our large universe, the resulting post-big bang universe requires the same unnatural constants (Planck problem) as those of any other non-inflationary big bang model.
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