论文标题
爱因斯坦的等效原理，用于重力场和量子参考框架的叠加
Einstein's Equivalence principle for superpositions of gravitational fields and quantum reference frames
论文作者
论文摘要
爱因斯坦等效原理（EEP）指出，所有物理定律都以任何局部惯性（经典）参考框架采用其特殊的相关形式，这是一般相对性的核心。由于其基本地位，该原则可能是在重力和量子效应均相关的政权中制定物理定律的非常有力的指南。 EEP的表述只有在物质系统和重力都是经典的情况下才能实现的，我们不知道当我们考虑在A-Posixibles noce noce nockal-Classical-Gravitation字段中考虑量子系统时，我们是否应该放弃或修改它。在这里，我们建议EEP对更广泛的参考帧有效，即与量子系统相关的量子参考帧（QRF）。通过对重力场非经典性的类型施加一定的限制，我们开发了一个框架，使我们能够为此类引力场提出EEP的扩展。这意味着在一组比目前应用的物理情况下，EEP在更广泛的物理情况下是有效的，包括重力场处于量子叠加状态的物理情况。
The Einstein Equivalence Principle (EEP), stating that all laws of physics take their special-relativistic form in any local inertial (classical) reference frame, lies at the core of general relativity. Because of its fundamental status, this principle could be a very powerful guide in formulating physical laws at regimes where both gravitational and quantum effects are relevant. The formulation of the EEP only holds when both matter systems and gravity are classical, and we do not know whether we should abandon or modify it when we consider quantum systems in a-possibly nonclassical-gravitational field. Here, we propose that the EEP is valid for a broader class of reference frames, namely Quantum Reference Frames (QRFs) associated to quantum systems. By imposing certain restrictions on the type of nonclassicality of the gravitational field, we develop a framework that enables us to formulate an extension of the EEP for such gravitational fields. This means that the EEP is valid in a much wider set of physical situations than what it is currently applied to, including those in which the gravitational field is in a quantum superposition state.
