Fragmentalism was originally introduced as a new A-theory of time. It was further refined and discussed, and different developments of the original insight have been proposed. In a celebrated paper, Jonathan Simon contends that fragmentalism delivers a new realist account of the quantum state—which he calls conservative realism—according to which: (i) the quantum state is a complete description of a physical system, (ii) the quantum (superposition) state is grounded in its terms, and (iii) the superposition terms are themselves grounded in local goings-on about the system in question. We will argue that fragmentalism, at least along the lines proposed by Simon, does not offer a new, satisfactory realistic account of the quantum state. This raises the question about whether there are some other viable forms of quantum fragmentalism.

中文翻译：

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世界是一堆量子碎片吗？

碎片主义最初是作为一种新的 A 时间理论引入的。它被进一步细化和讨论，并提出了原始见解的不同发展。在一篇著名的论文中，乔纳森·西蒙（Jonathan Simon）认为，碎片论提供了一种对量子态的新现实主义解释——他称之为保守现实主义——据此：（i）量子态是对物理系统的完整描述，（ii）量子态（叠加）状态以其项为基础，并且（iii）叠加项本身以有关系统的局部事件为基础。我们将争辩说，至少按照西蒙提出的路线，碎片主义并没有提供对量子态的新的、令人满意的现实解释。这就提出了一个问题，即是否还有其他一些可行的量子碎片主义形式。