定域化在适当时间参数化框架下的有效描述
Effective descriptions of localization in a proper-time parametrized framework
摘要：
虽然在适当的时间框架中的相对论系统的量子化提供了新的见解，关于所谓的本地化问题的理解，经典的观察者不能被视为量子共动框架和真正的测量通常设想使用一个外部参数相关的经典框架。在这里，适当的时间形式主义和通常的描述参数化的经典观察者之间的连接是通过定义一个限制操作，混合贡献的不同值的适当的时间。这样一个限制程序使我们能够检索的概念，牛顿-维格纳位置和Kijowski时间的检测在一个有效的方式，打开的可能性，解释相关的因果关系问题作为一个明显的现象，从时间的不确定性，是固有的每一个物理上可接受的单粒子量子态。
英文摘要：
Although the quantization of relativistic systems in a proper-time framework gives new insights concerning the understanding of the so-called localization problem, classical observers cannot be treated as quantum comoving frames and real measurement are typically conceived using an external parameter related to a classical frame. Here, the connection between the proper-time formalism and usual descriptions parametrized by classical observers is obtained by defining a restriction operation that mixes contributions of different values of proper-time. Such a restriction procedure allows us to retrieve the concepts of Newton-Wigner position and Kijowski time of detection in an effective fashion, opening the possibility to interpret the related causalities issues as an apparent phenomena resulting from the time uncertainty that is inherent to every physically acceptable single-particle quantum state.
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