瞬时响应的粒子探测器模型

PARTICLE DETECTOR MODEL FOR INSTANT RESPONSE

本文中将Unruh-DeWitt型粒子探测器改造成瞬时响应的粒子探测器。经过改进之后,所有理想的探测器应是等价的,尽管它们对同一物理状态的响应可能不一样。本文给出一个可行的方法用以计算在Minkowski真空中作任意运动的探测器的响应函数。

In this paper, Unruh-DeWitt type particle detector is reformed to detectors with instant response. After this reformation, all ideal particle detectors become equivalent, although they respond differently to different quantum state. This kind of detectors are designed to detect the quantity (φ2), just as Davies desired. Furthermore, a useful method for calculating the instant response function for a detector with monopole coupling and moving arbitrarily in a Minkowski vacuum is presented.