Emergent Spacetime from Deterministic Holographic Quantum Entanglement in a 5D Bulk Geometry

We propose a theoretical framework in which four-dimensional spacetime emerges as a holographic manifestation of quantum entanglement in a deterministic five-dimensional bulk geometry. The model incorporates non-local correlations and investigates a geometric approach to unifying gravitational fields and quantum states on cosmological scales. The formalism addresses mathematical singularities via an information density threshold tied to the bulk boundary condition. Crucially, the model yields a testable astrophysical prediction: an estimated ~24-microsecond energy-dependent arrival delay for high-energy photons from short Gamma-Ray Bursts (GRBs) at a distance of ~1 Gly. This provides a direct, observable signature for evaluation with current high-energy gamma-ray observatories.