<一般論文>量子的対象の存在論の決定手続きをモデル化する --個別量子系における単粒子の同一性・個体性に注目して--

Abstract

Since the 2000s, studies on the ontology of quantum objects have developed relatively actively. However, few studies have thoroughly addressed not only theoretical and metaphysical perspectives but also experimental viewpoints within specific cases. This paper aims to clarify the ontology of quantum objects, focusing on the issues of identity and individuality. Specifically, it constructs a new model that represents a procedure for providing the ontology of quantum objects, with particular attention to single-particle experiments in individual quantum systems. The proposed model is developed by complementarily organizing, abstracting, and integrating the discussions of Bueno (2018), Imai (2024), and Chen (2016, 2018, 2023), which examine the ontology of microscopic objects from theoretical and/or experimental perspectives. Although this model cannot independently resolve the issues of identity and individuality for quantum objects in specific cases, it is a valuable tool for exploring the ontology of quantum objects from a broader framework.