利用远距离探测器增强量子后指数衰减的可观测性
Enhanced observability of quantum post-exponential decay using distant detectors
摘要：
我们研究了一维空间中由指数衰减源发射的量子粒子的概率密度从指数到后指数（代数）衰减的难以捉摸的过渡。主要的发现是，在过渡时间的概率密度，从而其可观测性，增加与距离的检测器从源，到一个临界距离，超过该指数衰减不再观察。可解模型提供了明确的表达式的依赖关系的过渡共振和观测参数，方便选择的最佳条件。
英文摘要：
We study the elusive transition from exponential to post-exponential (algebraic) decay of the probability density of a quantum particle emitted by an exponentially decaying source, in one dimension. The main finding is that the probability density at the transition time, and thus its observability, increases with the distance of the detector from the source, up to a critical distance beyond which exponential decay is no longer observed. Solvable models provide explicit expressions for the dependence of the transition on resonance and observational parameters, facilitating the choice of optimal conditions.
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