The Oscillatory Universe, phantom crossing and the Hubble tension

Understand

We investigate the validity of cosmological models with an oscillating scale factor in relation to late-time cosmological observations.

• We show that these models not only meet the required late time observational constraints but can also alleviate the Hubble tension.
• As a generic feature of the model, the Hubble parameter increases near the current epoch due to its cyclical nature exhibiting the phantom nature allowing to address the said issue related to late time acceleration.