In this work we revisit the discussion on the process of measurements by a detector in a uniformly accelerated rectilinear motion, interacting linearly with a massive scalar field. We employ the Glauber theory of photodetection. In this formalism, the detector, interacting with the field prepared in an arbitrary state of the Rindler Fock space, is excited only by absorption processes. Here we intend to point out the main differences between the Glauber model and the more commonly used Unruh-DeWitt model. To understand more plainly measurement processes within the Glauber framework, we investigate the transition probability rate associated with a uniformly accelerated broadband detector prepared in the ground state. We show how the Unruh-Fulling-Davies effect emerges within the rotating-wave approximation. We also consider the behavior of this broadband detector in a frame which is inertial in the remote past but in the far future becomes uniformly accelerated. The usage of the Glauber model helps to clarify the accelerated or inertial observer interpretations of the measurements performed by the accelerated detector.

中文翻译：

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Minkowski和Fulling真空状态下的均匀加速量子计数检测器

在这项工作中，我们将重新讨论关于检测器以均匀加速的直线运动与大型标量场线性交互地进行测量的过程。我们采用了Glauber的光电检测理论。在这种形式主义中，与在Rindler Fock空间的任意状态下准备的场相互作用的检测器仅通过吸收过程被激发。在这里，我们打算指出Glauber模型与更常用的Unruh-DeWitt模型之间的主要区别。为了更清楚地了解Glauber框架内的测量过程，我们研究了与在基态下准备的均匀加速宽带检测器相关的跃迁几率。我们展示了Unruh-Fulling-Davies效应是如何在旋转波逼近内出现的。我们还考虑了该宽带检测器在偏远过去惯性但在不久将来变得均匀加速的帧中的行为。Glauber模型的使用有助于澄清由加速探测器执行的测量的加速或惯性观测器解释。