信子场波动论(XFT芯膜模型)的本质及其与相对论、量子力学的底层范式差异

Modern theoretical physics has long been split by a century-old divide: quantum mechanics describes discrete microscopic probabilistic behavior, relativity describes the continuous macroscopic spacetime geometry, and quantum field theory only stitches the two together by axioms, without unifying them from the bottom up. Traditional condensed-medium models can mimic pseudo-Lorentzian effects and quantum-wave behavior, yet remain constrained by a preferred medium rest frame and a background–perturbation dichotomy, yielding only approximate, low-energy effective physics. Based on Xin-Field Theory (XFT, the three-strand phase-circulation soliton model), this paper sets out its underlying physical nature: the cosmic vacuum is an elastic xin condensate medium; elementary particles are self-consistent topological phase-loop solitons of the field; relativistic spacetime symmetry, quantization, spin and kinematics are emergent effects of the steady-state soliton dynamics of the defect core and circulating membrane, rather than fundamental axioms of the universe. Expressed in the language of the vacuum, this is a counter-intuitive statement: the vacuum is the fully condensed state of the xin field, and matter is a structure formed from that vacuum. This paper contrasts the paradigms of XFT with classical quantum mechanics, special relativity and standard quantum field theory, resolving the fundamental contradiction of why traditional theories cannot self-consistently unify spacetime, particles, spin and motion, and constructing a unified physical framework rooted in the medium field, embodied in solitons, with emergent symmetry and macroscopic appearance.