There is a longstanding debate on the metaphysical relation between quantum states and the systems they describe. A series of relatively recent \(\psi\)-ontology theorems have been taken to show that, provided one accepts certain assumptions, “quantum states are real”. In this paper I investigate the question of what that claim might be taken to mean in light of these theorems. It is argued that, even if one accepts the framework and assumptions employed by such theorems, such a conclusion is not warranted. Specifically, I argue that when a so-called ontic state is taken to describe the properties of a system, the relation between this state and some quantum state as established by \(\psi\)-ontology theorems, is not of the kind that would warrant counting the quantum state among these properties in any way.

关于量子态与其描述的系统之间的形而上学关系，存在着长期的争论。已经采取了一系列相对较新的\（\ psi \）本体论定理来表明，只要接受某些假设，“量子态就是真实的”。在本文中，我研究了根据这些定理该主张可能意味着什么的问题。有人认为，即使一个人接受了这些定理所采用的框架和假设，也不能得出这样的结论。具体来说，我认为当采用所谓的本体状态来描述系统的性质时，该状态与某些量子状态之间的关系由\（\ psi \）建立-本体论定理不是那种保证以任何方式在这些特性中计算量子态的类型。