Wormholes from cosmological reconstruction based on Gaussian processes

TL;DR

This paper employs Gaussian process-based cosmological reconstruction to explore model-independent traversable wormholes, deriving specific solutions and analyzing their properties in relation to cosmic acceleration and exotic matter requirements.

Contribution

It introduces a Gaussian process method for cosmological reconstruction to study traversable wormholes without relying on specific models.

Findings

Tighter constraints on cosmological distances and dark energy equation of state using GP.

Derived two traversable wormhole solutions with specific properties.

Found that cosmic acceleration affects traversal velocity and exotic matter content.

Abstract

We study the model-independent traversable wormholes from cosmological reconstruction based on Gaussian processes (GP). Using a combination of Union 2.1 SNe Ia data, the latest observational Hubble parameter data and recent Planck's shift parameter, we find that our GP method can give a tighter constraint on the normalized comoving distance, its derivatives and the dark energy equation of state than the previous work \cite{1}. Subsequently, two specific traversable wormhole solutions are obtained, i.e., the cases of a constant redshift function and a linear shape function. We find that, with decreasing cosmic acceleration, the traversal velocity $v$ of the former case increases and the amounts of exotic matter $I_V$ of the latter case decreases.