Abstract The relationship between quantum mechanics and classical spacetime remains one of the central conceptual problems in modern physics. Quantum theory describes physical systems through superpositions of states, while general relativity treats spacetime as a classical geometric structure. The mechanism by which classical spacetime emerges from an underlying quantum description remains unresolved. This work proposes a conceptual framework in which the transition between quantum coherence and classical spacetime is associated with a scalar parameter describing temporal coherence, denoted as the Q field. In this approach, time is not assumed to be a globally fixed background parameter but emerges from the consistency of interacting physical subsystems. The Q field is introduced as an effective scalar field defined over spacetime, providing a structural criterion for temporal compatibility among configurations. The framework suggests that classical spacetime may emerge when interacting subsystems share a consistent temporal ordering, potentially defining a mesoscopic boundary between quantum and classical behavior. Esto suena mucho más académico.
Carlos Rodriguez (Sat,) studied this question.