Noncommutative wormhole in de Rham-Gabadadze-Tolley like massive gravity

TL;DR

This paper explores noncommutative geometry-based wormholes in dRGT massive gravity, analyzing their stability, exotic matter requirements, and the repulsive gravitational effects that lead to negative photon deflection angles.

Contribution

It introduces a novel wormhole model within noncommutative geometry in dRGT massive gravity, examining stability, energy conditions, and gravitational repulsion effects.

Findings

Wormholes violate null energy conditions, requiring exotic matter.

The models are stable under hydrostatic equilibrium.

Repulsive gravity causes negative photon deflection angles.

Abstract

The wormhole solution in dRGT massive gravity is examined in this paper in the background of non-commutative geometry. In order to derive the wormhole model, along with the zero tidal force, we assume that the matter distribution is given by the Gaussian and Lorentzian distributions. The shape function in both models involves the massive gravity parameters m2c1 and m2c2. But the spacetime loses its asymptotic flatness due to the action of the massive gravity parameter. It is noticed that the asymptotic flatness is affected by the repulsive effect induced in the massive gravitons that push the spacetime geometry very strongly. We observed that each model violates the null energy criteria, indicating the presence of exotic matter which is necessary to sustain the wormholes. The exotic matter is measured using the volume integral quantifier. Moreover, it is discovered that the model is stable under the hydrostatic equilibrium condition by utilizing the TOV equation. Finally, our research encompassed an exploration of the repulsive influence exerted by gravity. Our findings demonstrated that the presence of repulsive gravity results in a negative deflection angle for photons following null geodesics. Remarkably, we consistently observed negative values for the deflection angle across all values of r0 in the two scenarios examined. This consistent negativity unequivocally signifies the manifestation of the repulsive gravity effect.