Evolving wormhole geometries

TL;DR

This paper provides analytical solutions for evolving wormholes in General Relativity with non-constant redshift functions, showing they can be supported by non-exotic matter and exploring traversability and energy conditions.

Contribution

It introduces new evolving wormhole solutions with non-constant redshift functions and analyzes their matter content and traversability properties.

Findings

Wormholes can be supported by non-exotic matter.

Time-dependent geometries may satisfy energy conditions.

Traversability conditions are examined in evolving wormholes.

Abstract

We present here analytical solutions of General Relativity that describe evolving wormholes with a non-constant redshift function. We show that the matter that threads these wormholes is not necessarily exotic. Finally, we investigate some issues concerning WEC violation and human traversability in these time-dependent geometries.