Finslerian Wormholes in squared trace gravity

TL;DR

This paper explores traversable wormholes within a Finslerian extended gravity framework, demonstrating that Finslerian anisotropy and the Barthel connection can produce physically viable wormholes satisfying energy conditions.

Contribution

It introduces a novel Finslerian approach to wormholes in squared-trace gravity, showing how anisotropy and the Barthel connection expand the parameter space for realistic solutions.

Findings

Finslerian anisotropy enables classical energy conditions to hold.

Barthel connection extends viable parameter space for wormholes.

Finsler modifications offer new realistic wormhole configurations.

Abstract

We investigate traversable wormholes in squared-trace extended gravity within the framework of Finsler-Randers geometry equipped with the Barthel connection. The Einstein-Hilbert action is modified by terms involving the trace of the energy-momentum tensor and its square, generating effective anisotropies through matter-curvature coupling. The resulting field equations are studied under barotropic equations of state with exponential and power-law shape functions. Finslerian anisotropy introduces novel pressure dynamics that enable the classical energy conditions to be satisfied in specific parameter domains. Our analysis shows that the Barthel connection significantly extends the parameter space for non-exotic, physically viable wormholes compared to purely Riemannian models. These findings suggest that Finslerian modifications provide a powerful mechanism for realizing realistic wormhole structures, offering new perspectives on anisotropic and geometrically enriched space-time configurations in extended gravity.