[MST-EUT Theory Series #45] Phase-Boundary Bodies, Open Weak Entropic Flows, and the Matter--Spacetime Bilateral Pressure Structure in MST-EUT - 相態邊體、開放弱熵流與物質–時空雙側推力結構 (v1.0-zh)

This paper establishes a higher-level organizational framework within MST-EUT in which matter, spacetime, boundaries, phases, electromagnetic fields, and gravity are all projections of the same total entropic flow field under different degrees of closure, coherence, exchange, and openness. The central concept introduced is the phase-boundary body: a finite-thickness layer with exchange flows, order-parameter gradients, and tension balance, positioned between the quantization-closed matter side and the open-tensional spacetime side. Residual entropic flows that cannot be compensated by the boundary decompose into three irreducible channels via a tensor decomposition: the symmetric traceless channel projects onto the gravitational geometric flow, and the antisymmetric rotational channel projects onto the electromagnetic chiral flow. The geometric decoupling theorem from Series #44 is embedded as the gravitational translation mechanism of the boundary, providing algebraic grounding for the matter-to-spacetime entropic translation. The paper also introduces a generalized phase-state vector language, a Landau-Ginzburg boundary free energy functional, and the conservation constraint governing the four-component decomposition of the total entropic current.

本文為 MST-EUT 理論系列第 45 份文件,承接 Series #40、#41 與 #44 的弱場引力、封閉源與幾何解耦成果,建立一個更高階的組織框架:物質、時空、邊界、相態、電磁與引力,皆可視為同一總熵流場在不同封閉度、相干度、交換度與開放度下的投影。本文的核心概念是相態邊體——一個具有有限厚度、交換流、序參量梯度與張力平衡的相態交換層,位於物質側收束壓力與時空側展開張力之間。殘餘開放弱熵流的梯度張量可分解為三個不可約部分(散度補償通道、對稱應變通道、反對稱旋性通道),對稱應變通道投影為引力幾何流,反對稱旋性通道投影為電磁旋性流。本文同時引入一般化相態向量語言、Landau-Ginzburg 邊體自由能泛函,並將 Series #44 幾何解耦定理嵌入引力邊體命題,形成完整的物質–邊體–時空–開放弱流分化語法框架。電磁旋性投影係數 β₀ 的第一性推導屬 Series #47 範圍。

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