非束缚量子系统的吸收体探测器
Absorbers as detectors for unbound quantum systems
摘要：
在模拟非束缚量子系统时，经常需要施加复吸收势。虽然这通常是为了避免在数值边界的文物，我们展示了如何吸收器也可以用来探测吸收的粒子的特性。这样，可以保留关于被去除的颗粒的信息。此外，我们解释了如何-以及何时-这样的吸收器作为探测器的意义上，他们允许模拟的动态模拟测量的行为。
英文摘要：
Complex absorbing potentials are frequently imposed when simulating unbound quantum systems. While this is usually done solely in order to avoid artifacts at the numerical boundary, we show how absorbers may also be used to probe the characteristics of the particle undergoing absorption. This way, information about the removed particles may be retained. Moreover, we explain how -- and when -- such absorbers act as detectors in the sense that they allow for simulating the act of measurement in dynamical simulations.
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