论文标题
信息是物理：关系量子力学中的跨观点链接
Information is Physical: Cross-Perspective Links in Relational Quantum Mechanics
论文作者
论文摘要
关系量子力学（RQM）是基于量子力学的解释，即量子状态描述不是系统的绝对特性，而是系统之间的关系。在本文中，我们观察到RQM对信息的物理性的强调与当前RQM表述中某些信息的无法访问之间存在张力。因此，我们提出了一个新的RQM假设，该假设要求某个观察者所拥有的所有信息都存储在该观察者的物理变量中，从而可以通过测量到其他观察者来访问，以便观察者可以达到有关过去发生的量子事件的主体间协议。基于这一假设，我们建议RQM的一个本体论，该本体维护量子状态始终是关系的原则，但也假定了一组量子事件，这些事件并非严格关系。我们表明，新的假设有助于解决对RQM的一些现有异议，最后我们在RQM的背景下解决了Frauchiger-Renner实验。
Relational quantum mechanics (RQM) is an interpretation of quantum mechanics based on the idea that quantum states describe not an absolute property of a system but rather a relationship between systems. In this article, we observe that there is a tension between RQM's naturalistic emphasis on the physicality of information and the inaccessibility of certain sorts of information in current formulations of RQM. Therefore we propose a new postulate for RQM which requires that all of the information possessed by a certain observer is stored in physical variables of that observer and thus accessible by measurement to other observers, so observers can reach intersubjective agreement about quantum events which have occurred in the past. Based on this postulate, we suggest an ontology for RQM which upholds the principle that quantum states are always relational, but which also postulates a set of quantum events which are not strictly relational. We show that the new postulate helps address some existing objections to RQM and finally we address the Frauchiger-Renner experiment in the context of RQM.
