This preprint introduces Quantum Source Transition Theory (QSTT), a source-side framework for interpreting the relationship between quantum probability structure, physical record formation, and gravitational source behavior. This is a preliminary attempt to try and bridge QM with GR using a quantum probability source structure. The central proposal is that the gravitational source term should be treated as a transition structure rather than a purely classical object. QSTT expresses this through an effective stress-energy form: Tₑff = Tclassical + TPsi + TC In this expression, Tclassical represents conventional recorded or classical matter-energy, TPsi represents coherent probability-phase source structure, and TC represents transition stress-energy associated with physical record formation. The paper develops a record-based interpretation of the quantum-to-classical transition using branch distinguishability, record strength, and record-formation rates. It also outlines how QSTT may be tested or constrained through mesoscopic gravity experiments such as QGEM/BMV-style proposals, where the key question is whether gravitational phase accumulation can occur before durable which-branch records are formed. A preliminary weak-field closure branch is also included, along with supporting comparison material against MOND-style phenomenology. These results are presented as an initial phenomenological test direction rather than as the central foundation of the framework. This v1. 0 preprint is intended as a foundation release: it defines the core source-side structure, establishes the physical-record terminology, identifies testable regimes, and provides companion data and plots for early weak-field exploration. Recommended citation: Krager, Erik. Quantum Source Transition Theory: A Source-Side Framework for Gravity, Physical Records, and Weak-Field Phenomenology. Version 1. 0. Zenodo, 2026. DOI: 10. 5281/zenodo. 20765966.
Erik Krager (Fri,) studied this question.