Imaginary Space Metric Manifold Reconstruction Based on 5D Bulk Stress Shear and High-Frequency Topological Saturation: A Theoretical Framework and Proposed Tabletop Experimental Protocol

This study constructs a unified spatiotemporal dynamic theoretical framework based on high-dimensional bulk stress shear and multilayer composite fluid membranes, and proposes a complete experimental protocol to achieve localized detection of imaginary space and the locking of macro-entity states using laboratory tabletop equipment. By characterizing the three-dimensional physical spacetime as a shear-slip interface of a Kaluza-Klein high-dimensional manifold (i.e., the imaginary space), this protocol utilizes high-frequency continuous pulses generated by a tabletop laser wakefield acceleration (LWFA) mechanism to perform topological saturation flushing on a specific vacuum target area. The research demonstrates that when the mass-energy density of the target area approaches the Schwinger limit, the local spatiotemporal canvas triggers a non-Hermitian conjugate impedance matching. Constructive interference energy, which would inevitably induce catastrophic Joule heating blasts in a three-dimensional flat spacetime, is instead sucked via transient conjugate pumping into the ultra-low energy state cold sink of Imaginary Space Form II within a destructive femtosecond window. In the baryonic world, this manifests as an anomalous, absolute superconducting death-quiet state where energy is instantaneously drained. This "anomalous success," outside the dynamic ledger of the classical baryonic world, constitutes the sole and exclusive thermodynamic proof of the existence of imaginary space. To achieve long-term localization of the detection horizon, this protocol introduces a lepton-phase (muon) degenerate stacking technique based on non-Abelian gauge field topological charge confinement and the extra-dimensional time dilation mechanism. This successfully anchors manifold horizon distortions at the 1-to-10 nanometer scale into the baryonic world, forming a long-term stable and macroscopically measurable physical residue entity. The non-zero polarization angle of the cosmic birefringence effect derived from the latest 2026 space astrometry data, along with the Gaia DR4 anisotropic stellar stream orbital data, provides a rigid astrophysical empirical matrix for this framework.