论文标题
等效原理和惯性 - 重大的破坏性
The equivalence principle and inertial-gravitational decoherence
论文作者
论文摘要
这项工作分为两个部分。第一个检查了从布朗斯坦对重力量化的原始反对的角度来看，通过纠缠从纠缠中“见证”量子重力的最新建议。使用开放量子系统的技术，我们素描探针和检测器之间的惯性和重力反应的不可避免的破坏性如何破坏重力量化的实验检测。我们认为，这种“失败”实际上是任何量子描述的固有特征，该描述试图将等价原理恰好纳入量子动力学。在第二部分中，我们推测如何通过相关器的一般协方差在有效的量子场理论中实现等效原理的确切实现。尽管我们还没有给出这种理论的明确结构，但我们指出了这样的程序的某些特征和后果。
This work is divided into two parts. The first examines recent proposals for "witnessing" quantum gravity via entanglement from the point of view of Bronstein's original objection to a quantization of gravity. Using techniques from open quantum systems we sketch how unavoidable decoherence from both inertial and gravitational backreaction between probe and detector could spoil the experimental detection of the quantization of gravity. We argue that this "failure" is actually an inherent feature of any quantum description that attempts to incorporate the equivalence principle exactly within quantum dynamics. In the second part, we speculate on how an exact realization of the equivalence principle might be implemented in an effective quantum field theory via the general covariance of correlators. While we are far from giving an explicit construction of such a theory we point out some features and consequences of such a program.
