Wormholes in kappa(R,T) gravity
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The wormhole solution could be found by solving the Einstein field equations with violating the null energy condition (NEC). We represent wormhole solutions in $\kappa(R,T)$ gravity in two different ways. At first, we find the shape function by considering a redshift function and linear equation of state (EoS). The solution represents a wormhole for the real feasible matter. In the second part, we consider four pairs of two redshift functions and two shape functions and analyze the obtained solutions. Some of the models suggest that for particular values of the parameters, the existence of wormholes are supported by an arbitrarily small quantity of exotic matter.
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Critical Coupling Surfaces in $\kappa(R,T)$ Gravity: Regularity, Gravitational Screening, and Phase Transitions
Critical hypersurfaces where κ(R,T)=0 remain regular and function as gravitational screening surfaces in κ(R,T) gravity.
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