Interacting agegraphic dark energy in f(Q, T) gravity model

We study interacting agegraphic dark energy within the framework of the f(Q,T) gravity model in cosmology. This research investigates how a specific form of dark energy —known as agegraphic dark energy— behaves under f(Q,T) gravity, a modified theory extending Einstein's general relativity. The f(Q,T) model introduces a function f(Q,T) dependent on both the non-metricity scalar Q and the trace of the energy-momentum tensor T. In this context, “interaction” refers to energy-momentum exchange between dark energy and other cosmic components (e.g., dark matter). We derive and solve the f(Q,T) field equations for interacting agegraphic dark energy, then employ numerical simulations to analyze the universe's evolution under this model. Finally, we assess the stability of the model and evaluate the viability of f(Q,T) gravity as an alternative to general relativity.