Speaker
Description
In this study, we explored the FLRW model within f(R,Lm) gravity, focusing on Strange Quark Matter and its role in cosmic evolution. Using 57 observational data points, we derived the best-fit H(z) curve with an impressive R^2 value of 0.9527, showing strong alignment with the ΛCDM model. The deceleration parameter q(z) highlights a smooth transition from deceleration to acceleration, consistent with dark energy-driven expansion. Additionally, our analysis of energy density ρsq(z), pressure psq(z), and the equation of state ωsq(z) reveals Strange Quark Matter evolving from dark energy-like behavior to a matter-dominated phase. The statefinder diagnostic showcases the model’s capability to capture cosmic evolution, transitioning from a high-density Chaplygin Gas state to the ΛCDM point (r,s) = (1,0) and aligning with the de Sitter phase (q,r) = (−1,1). Furthermore, the Ω(z) diagnostic rein forces the model’s strong alignment with ΛCDM. Energy conditions, including NEC, WEC, and DEC, are satisfied, while the SEC transitions to consistency with cosmic acceleration.
