Intermediate Inflation or Late Time Acceleration?

Abstract EN

The expansion rate of “intermediate inflation” lies between the exponential and power law expansion but corresponding accelerated expansion does not start at the onset of cosmological evolution.

Present study of “intermediate inflation” reveals that it admits scaling solution and has got a natural exit form it at a later epoch of cosmic evolution, leading to late time acceleration.

The corresponding scalar field responsible for such feature is also found to behave as a tracker field for gravity with canonical kinetic term.