Phantom fields: bounce solutions in the early Universe and S-branes

TL;DR

This paper explores a cosmological model with two phantom scalar fields, presenting a regular bounce solution that transitions to an accelerated expansion, which can also be viewed as an S-brane solution.

Contribution

It introduces a specific potential for phantom scalar fields that yields a regular bounce and transition to de Sitter expansion, linking bounce solutions with S-branes.

Findings

Regular bounce solution achieved with two phantom fields

Transition to de Sitter expansion after bounce

Solution can be interpreted as an S-brane

Abstract

The cosmological model with two phantom scalar fields with the special choice of field's potential is considered. The obtained regular solution describes a bounce with a subsequent transition to the de Sitter stage of the expansion of the Universe. This solution also could be interpreted as a S-brane solution.