On quantum mechanics self-consistency: EPR incompleteness claims require no extraneous concepts beyond the theory's plain formalism for refutation

• URL: http://arxiv.org/abs/2608.10006v1
• Date: Fri, 07 Aug 2026 21:08:12 GMT
• Title: On quantum mechanics self-consistency: EPR incompleteness claims require no extraneous concepts beyond the theory's plain formalism for refutation
• Abstract summary: The Einstein-Podolsky-Rosen (EPR) argument famously claimed that the quantum theory is incomplete.<n>We show how to overturn the alleged EPR incompleteness without invoking any extraneous propositions.<n>This offers, at least in a paradigmatic instance, a powerful indication of a structurally well-founded, self-consistent quantum theory.
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• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: From a phenomenological and experimental viewpoint, quantum mechanics is remarkably successful in explaining effects and processes in the microscopic world. Recently, however, a growing body of literature has revisited the theory's own formal foundations, specifically addressing issues of self-consistency and completeness. As a major historical example of these foundational challenges, the Einstein-Podolsky-Rosen (EPR) argument famously claimed that the theory is incomplete. While many valid criticisms and refutations of the EPR logic exist, they generally rely on a combination of technical results and conceptual objections to EPR's interpretive assumptions, thus transcending the plain quantum framework itself. Motivated by these trends of examining the theory's structural limits, here we revisit the EPR argument. Focusing on elements essential to the EPR reasoning, we first analyze general quantum correlations for EPR states: (i) the fact that their observables are always associated with non-commuting operators, and (ii) the nature of the correlated information obtained through measurement. From these two points alone, and relying strictly on the core rules of quantum mechanics, we demonstrate how to overturn the alleged EPR incompleteness without invoking any extraneous propositions. Consequently, we show that the standard formalism alone suffices to resolve such type of skepticism regarding the theory's physical reach. This offers, at least in a paradigmatic instance, a powerful indication of a structurally well-founded, self-consistent quantum theory.

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