The Phi–Gamma Field Theory (PGFT) presents a unified quantum framework integrating consciousness, informational entropy, and spacetime deformation. It introduces two interacting fields: the Phi Field, representing nonlocal quantum awareness modulated by amplitude of conscious activation, informational phase, and entropy; and the Gamma Field, describing spacetime deformation influenced by energy, motion, and information. A central feature is the gamma total coefficient, which dynamically links entropy to mass–energy transformations. The Phi Field, through normalized entropy, governs coherent wave patterns associated with cognitive processes. The theory formulates total system energy as the sum of Gamma energy, Phi energy, and their interaction energy, enabling a geometric and informational account of measurement and awareness. PGFT provides a bidirectional model: consciousness shapes matter, and matter regulates cognition. It opens pathways for theoretical physics, quantum neuroscience, and entropy-based AI design.