Quantum States as Objective Informational Bridges
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- 作者：Richard Healey
- 关键词：Quantum state ; Quantum information ; Quantum teleportation ; Delayed ; choice entanglement ; swapping ; EPR ; Bohm correlations
- 刊名：Foundations of Physics
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：47
- 期：2
- 页码：161-173
- 全文大小：
- 刊物类别：Physics and Astronomy
- 刊物主题：History and Philosophical Foundations of Physics; Quantum Physics; Classical and Quantum Gravitation, Relativity Theory; Statistical Physics and Dynamical Systems; Classical Mechanics; Philosophy of S
- 出版者：Springer US
- ISSN：1572-9516
- 卷排序：47
文摘
A quantum state represents neither properties of a physical system nor anyone’s knowledge of its properties. The important question is not what quantum states represent but how they are used—as informational bridges. Knowing about some physical situations (its backing conditions), an agent may assign a quantum state to form expectations about other possible physical situations (its advice conditions). Quantum states are objective: only expectations based on correct state assignments are generally reliable. If a quantum state represents anything, it is the objective probabilistic relations between its backing conditions and its advice conditions. This paper offers an account of quantum states and their function as informational bridges, in quantum teleportation and elsewhere.