Existing proposals concerning the ontology of quantum mechanics (QM) either involve speculation that goes beyond the scientific evidence or abandon realism about large parts of QM. This paper proposes a way out of this dilemma, by showing that QM as it is formulated in standard textbooks allows for a much more substantive ontological commitment than is usually acknowledged. For this purpose, I defend a non-fundamentalist approach to ontology, which is then applied to various aspects of QM. In particular, I will defend realism about spin, which has been viewed as a particularly hard case for the ontology of QM.

中文翻译：

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无需推测的量子本体

现有的关于量子力学本体论 (QM) 的提议要么涉及超出科学证据的推测，要么放弃关于 QM 大部分内容的现实主义。本文提出了一种摆脱这种困境的方法，通过展示标准教科书中制定的 QM 允许比通常承认的更实质性的本体论承诺。为此，我捍卫一种非原教旨主义的本体论方法，然后将其应用于 QM 的各个方面。特别是，我将捍卫关于自旋的现实主义，这一直被视为 QM 本体的一个特别困难的案例。