A Cyclic Model of the Universe

TL;DR

This paper introduces a cyclic universe model where each cosmic cycle begins with a bang and ends in a crunch, featuring phases of slow expansion and contraction that explain key cosmological observations without inflation.

Contribution

It presents a novel cyclic cosmological model that replaces inflation with repeated cycles of expansion and contraction, maintaining finite conditions at transitions.

Findings

The model explains homogeneity and flatness without inflation.

It accounts for observed density fluctuations.

The universe undergoes endless cycles of bang and crunch.

Abstract

We propose a cosmological model in which the universe undergoes an endless sequence of cosmic epochs each beginning with a `bang' and ending in a `crunch.' The temperature and density are finite at each transition from crunch to bang. Instead of having an inflationary epoch, each cycle includes a period of slow accelerated expansion (as recently observed) followed by slow contraction. The combination produces the homogeneity, flatness, density fluctuations and energy needed to begin the next cycle.