Effects of the equation of state on wormhole properties in f(Q,T) gravity

Authors

• Gamal Nashed, The British University in Egypt
• Maged z. Youssef, Department of Mathematics and Statistics, College of Science, Imam Mohammad Ibn Saud Islamic University(IMSIU), Riyadh, 11566, Saudi Arabia
• A Eid, Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia

Document Type

Article

Publication Date

9-2026

Abstract

In this study, we explore the possibility of constructing traversable wormhole solutions within the framework of f(Q,T) gravity. The analysis is carried out under the assumption of a constant redshift function and a linear form of f(Q,T). Different shape functions are developed for various matter sources, including barotropic fluids, anisotropic fluids, and Chaplygin gas, ensuring that the flaring-out condition is fulfilled and the geometry remains asymptotically flat. At the throat radius r0, we examine the violation of the energy conditions and highlight the role of the parameters ω, n, and δ appearing in the chosen equations of state, with particular emphasis on their influence on the null energy condition. Furthermore, we investigate the gravitational lensing features of these configurations, which indicate a repulsive effect for negative values of ω, n, and δ. Finally, the stability of the constructed wormhole models is evaluated through the Tolman–Oppenheimer–Volkoff (TOV) equilibrium condition.

Recommended Citation

Nashed, Gamal; Youssef, Maged z.; and Eid, A, "Effects of the equation of state on wormhole properties in f(Q,T) gravity" (2026). Centre for Theoretical Physics and Computations. 397.
https://buescholar.bue.edu.eg/centre_theoretical_physics/397