Geometric Origin of the Quantum–Classical Boundary and the Arrow of Time
涛 翟
The quantum measurement problem and the arrow of time problem are two of the most fundamental unsolved problems in physics. This paper proves that they share the same geometric origin: the transition of the total information dissipation coefficient Υ from 0 to >0. Quantum collapse is a saddle-point bifurcation of Υ on a single quantum system — when the information dissipation channel opens, only a single classical saddle-point path survives among the quantum superposition states. Collapse and decoherence are not two independent processes but different stages of the same saddle-point bifurcation: decoherence is the early stage, and collapse is the late stage. The arrow of time is the macroscopic manifestation of Υ in statistical ensembles — irreversibility has two independent channels: Υ_E (energy dissipation, thermodynamic arrow) and Υ_φ (phase dissipation, information arrow). The two can be asynchronous: a pure dephasing system has Υ_φ>0 while Υ_E=0; collapse precedes thermalization. This independence yields testable predictions on cosmological scales: if the information arrow is activated before or after the thermodynamic arrow in the very early Universe, the primordial density fluctuations will retain distinct types of non-Gaussian features, whose shapes can be used to determine the activation order of the two channels. Foundational concepts of quantum mechanics — wave function, complex numbers, entanglement, decoherence, quantum–classical boundary — obtain a unified geometric definition within the order-parameter geometric framework. If experiments confirm that Υ_E and Υ_φ always change synchronously, or that log C(t) is linear rather than upward-curving, this theory is falsified.
•Jul 26, 2026•0 citations