QBism 关于定域性与非定域性的理论
QBism on Locality and Nonlocality
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中文总结 AI 辅助
该研究基于已有成果明确 QBism 是量子力学的纯定域诠释，阐释其时空个人性的内涵，为 QBism 处理量子与引力交叉问题奠定基础。
中文摘要 AI 辅助
近期，Pienaar（2026）在Cavalcanti（2021）的研究基础上表明，QBism 无法总是假设不同观测者（如维格纳及其朋友）的量子测量结果嵌入单一时空。这源于 QBism 拒绝了 Bong 等人的无定域性定理中的“观测事件的绝对性”假设。因此，QBism 必须将时空概念视为与其对待量子态、量子测量结果一样具有个人性的概念。从某种意义上说，这对 QBism 支持者而言并不意外，因为他们自2009年起就将“个人主义时空”概念视为与自身其他观点最契合的假设。但这要求我们最终明确：尽管存在该新定理，且量子理论长期违反贝尔不等式，QBism 作为量子力学纯定域诠释的具体内涵。借助这种更清晰的阐释，我们也希望能为 QBism 开辟一条全新路径，以处理量子理论与引力交叉领域的问题。
英文摘要
Recently Pienaar (2026), building on work of Cavalcanti (2021), has shown that QBism cannot always assume distinct observers' quantum-measurement outcomes---say, of Wigner and his friend---are embedded in a single spacetime. This follows from QBism's rejection of the `Absoluteness of Observed Events' assumption in the Bong et al. no-go theorem. Thus, QBism has no choice but to treat the notion of spacetime every bit as personalistic as it treats quantum states and quantum measurement outcomes. In a way, this is not a surprise to QBists, as they have taken the notion of `personalist spacetimes' to be the ansatz most compatible with their other views since at least 2009. But it does enjoin us to finally make crystal clear the sense in which QBism is a purely local interpretation of quantum mechanics despite this new theorem and despite quantum theory's age-old violation of Bell's inequalities. With the extra clarity we also hope to poise QBism for a distinctly new way to approach issues at the interface of quantum theory and gravity.
