Physical Medium X: A Source–Medium–Receiver Hypothesis for Radiative Energy Transfer, Observed Latency, Spectral Evolution, and Cosmological Distance Relations — Expanded Research Manuscript

Abstract

Physical Medium X is an independently developed scientific research hypothesis investigating whether the physical vacuum itself may exhibit a measurable response associated with radiative energy transfer between a source and a receiver. This expanded research manuscript documents the conceptual development of the Source–Medium–Receiver framework, including stochastic interaction models, phenomenological formulations of observed latency and spectral evolution, transfer-response approaches, cosmological distance relations, and exploratory comparisons with observational datasets including Pantheon+ Type Ia supernovae and DESI DR2 baryon acoustic oscillation measurements. The manuscript presents mathematical formulations, numerical findings, conceptual arguments, limitations, unresolved physical questions, and proposed directions for future theoretical and experimental investigation. This work was developed independently by an author whose formal academic background is in mechanical engineering rather than theoretical physics. Scientific discussions and artificial intelligence tools assisted in exploring and organizing aspects of the research. The manuscript reflects the current stage of an independent investigation conducted with limited resources. The proposed framework is not presented as an experimentally established physical theory. Its mathematical consistency, numerical reproducibility, underlying causal mechanisms, and distinguishing experimental predictions require further independent scientific evaluation. This expanded manuscript complements the shorter journal-oriented research article and supplementary scientific material previously deposited on Zenodo. Related journal research article: https://doi.org/10.5281/zenodo.23304043 The purpose of this publication is to make the complete research development available for scientific discussion, critical examination, and potential collaboration with specialized research institutions.