Torsion-Induced Asymptotic Symmetries from Spiral Compactification A Bulk Mechanism for Celestial Holography

This work presents a bulk geometric mechanism for the emergence of asymptotic symmetries, operator organization, and memory effects in celestial holography for asymptotically flat spacetimes. The mechanism is based on spiral compactification with torsion and monodromy, which imposes global topological constraints on admissible bulk propagation. These constraints give rise to winding superselection, holonomy preserving transformations, and stable bulk structures whose projection to null infinity reproduces enhanced asymptotic symmetries and persistent memory observables. The framework preserves the established boundary formalism while supplying a constructive bulk origin for its central features, providing a unified geometric interpretation of symmetry enhancement, soft behavior, and memory in flat space scattering.