Non-singular inflationary universe from polymer matter
  We consider a polymer quantization of a free massless scalar field in a
homogeneous and isotropic cosmological spacetime. This quantization method
assumes that field translations are fundamentally discrete, and is related to
but distinct from that used in loop quantum gravity. The semi-classical
Friedman equation yields a universe that is non-singular and non-bouncing,
without quantum gravity. The model has an early de Sitter-like inflationary
phase with sufficient expansion to resolve the horizon and entropy problems,
and a built in mechanism for a graceful exit from inflation.
