论文标题
通过反馈机制的重力互动
Gravitational interaction through a feedback mechanism
论文作者
论文摘要
我们研究了Kafri，Taylor和Milburn（KTM）以及Tilloy和Diósi（TD）的模型，这两种模型都通过连续的测量和反馈机制在量子系统之间实现重力。第一个模型是针对两个粒子，在一个维度上移动，其中牛顿电势是线性化的。第二个适用于牛顿重力的背景下的任何量子系统。我们解决了如何概括KTM模型以进行任意有限数量粒子的问题。我们发现，最直接的概括要么是不一致的，要么被实验证据所排除。我们还表明，在定义后者模型的近似值下，TD模型并未减少到KTM模型。然后，我们认为，在最简单的条件下，TD模型是通过连续测量和反馈机制唯一可行的全牛顿相互作用的可行实现。
We study the models of Kafri, Taylor and Milburn (KTM) and Tilloy and Diósi (TD), both of which implement gravity between quantum systems through a continuous measurement and feedback mechanism. The first model is for two particles, moving in one dimension, where the Newtonian potential is linearized. The second is applicable to any quantum system, within the context of Newtonian gravity. We address the issue of how to generalize the KTM model for an arbitrary finite number of particles. We find that the most straightforward generalisations are either inconsistent or are ruled out by experimental evidence. We also show that the TD model does not reduce to the KTM model under the approximations which define the latter model. We then argue that under the simplest conditions, the TD model is the only viable implementation of a full-Newtonian interaction through a continuous measurement and feedback mechanism.
