极限及其根据：QBism、科学实在论与玻恩规则
The Limit and Its Ground. QBism, Scientific Realism, and the Born Rule
浏览论文内容
中文总结 AI 辅助
本文通过批评格利克的视角规范性实在论，提出以现象学视域概念将量子态理解为行动者的加权（曲率），从而为QBism的实在论立场及玻恩规则的客观性提供新根据。
中文摘要 AI 辅助
QBists坚持认为他们的立场是实在论的，同时否认量子形式体系表征了一个独立于心灵的世界。这种坚持难以定位。实在论争论自始至终都是关于被表征内容的争论，因此，一个否认处于表征关系中的理论似乎根本未在该争论中占据任何位置。本文考察了为兑现QBist主张所做的最成熟的尝试——戴维·格利克的视角规范性实在论——并论证其失败具有启发性。格利克在事态中寻求玻恩规则客观性的根据，并将行动者的视角解释为已构成世界中的一个位置；由于找不到能够同时约束每个行动者的事态，他不得不将这一根据视为原始事实。现象学提供了他的图景所缺乏的第三个要素。视域不是世界中的位置，而是世界得以被给予的条件。将量子态解读为行动者对此类视域的加权——即其曲率——量子态既非有缺陷的描述，也非原始设定，而玻恩规则则阐明了任何意义赋予曲率所依据的不变法则性。
英文摘要
QBists insist that theirs is a realist position while denying that the quantum formalism represents a mind-independent world. The insistence is hard to place. The realism debate is throughout a dispute about represented content, so a theory that denies standing in the representation relation appears not to take up a position within that debate at all. This paper examines the most developed attempt to make good on the QBist claim--David Glick's perspectival normative realism--and argues that it fails instructively. Glick seeks the ground of the Born rule's objectivity among states of affairs and construes an agent's perspective as a location within an already-constituted world; finding no state of affairs fit to bind every agent at once, he must book the ground as brute. Phenomenology supplies the third thing his picture lacks. A horizon is not a position within the world but the condition under which a world is given. Read as an agent's weighting--her curvature--of such a horizon, the quantum state is neither a defective description nor a brute posit, and the Born rule articulates the invariant lawfulness by which any sense confers a curvature at all.
发表机构
- Linköping University（林雪平大学）
机构由 AI 辅助整理，请以论文原文为准。
