论文标题
量子拖动的量子检测
Quantum Detection of Inertial Frame Dragging
论文作者
论文摘要
像一般相对论这样的重力理论产生的现象与牛顿的理论根本不同。一个类似于电磁诱导的例子是引力磁性，或者通过质量能电流拖动惯性框架。这些效果最近通过经典观察结果证实。在这里，我们首次表明可以通过量子检测器观察它们。我们研究放置在缓慢旋转的壳中的Unruh De-Witt检测器的响应函数。我们表明，即使壳内部的时空是平坦的，并且检测器是局部惯性的，响应函数即使旋转的存在也可以接收旋转的存在。检测器可以区分壳不旋转时的静态情况和壳旋转和惯性框架的拖动（即引力磁效应）时的固定情况。此外，当检测器打开以获取有限的时间间隔时，它可以这样做，在该时间间隔中，光信号无法传播到外壳并返回以传达旋转的存在。
A relativistic theory of gravity like general relativity produces phenomena differing fundamentally from Newton's theory. An example, analogous to electromagnetic induction, is gravitomagnetism, or the dragging of inertial frames by mass-energy currents. These effects have recently been confirmed by classical observations. Here we show, for the first time, that they can be observed by a quantum detector. We study the response function of Unruh De-Witt detectors placed in a slowly rotating shell. We show that the response function picks up the presence of rotation even though the spacetime inside the shell is flat and the detector is locally inertial. The detector can distinguish between the static situation when the shell is non-rotating and the stationary case when the shell rotates and the dragging of inertial frames, i.e. gravitomagnetic effects, arise. Moreover, it can do so when the detector is switched on for a finite time interval within which a light signal cannot travel to the shell and back to convey the presence of rotation.
