Shukla Photonic Field Theory (SPFT): Spacetime Fabric as a Cosmic Wave-Ocean

This paper presents the Shukla Photonic Field Theory (SPFT), a unified framework proposing that photons, through continuous cosmological redshift, evolve into extremely long-wavelength, ultra-low-energy states that collectively form a pervasive Cosmic Photonic Field (CPF). SPFT posits that this field represents the final energetic state of light and contributes dynamically to large-scale spacetime structure. The theory synthesizes principles of quantum field theory, classical electrodynamics, general relativity, and modern cosmology, providing a mathematically consistent foundation for how redshifted photons survive indefinitely and influence cosmic expansion. SPFT further suggests that CPF may participate in vacuum energy, dark-energy pressure, and potential inter-universal energy connectivity. The framework yields testable predictions related to CMB anisotropies, gravitational lensing anomalies, and ultra-low-frequency electromagnetic signals.