Probing entanglement in Compton interactions
Probing entanglement in Compton interactions
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DOI：
10.1088/2399-6528/ab45db
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发表时间：
2019-10-01
影响因子：
1.2
通讯作者：
Vegh, Viktor
中科院分区：
文献类型：
--
作者：
Caradonna, Peter;Reutens, David;Vegh, Viktor
这项理论研究旨在检查纠缠湮没光子的康普顿截面区域，以测试理论可能的崩溃，这可能会对康普顿 PET 系统的预测最佳能力产生影响。我们提供纠缠湮灭光子的横截面图以进行实验验证。我们引入了一种策略，以相对直接的方式导出假设的可分离态、混合态和纠缠态的康普顿散射的横截面。为了理解纠缠对湮没光子横截面的影响，我们推导了横截面，以便用假设的可分离态和假设的禁止最大纠缠态的横截面来表示。我们在横截面中发现了叶状结构，这是纠缠效应最大的区域。我们还发现，混合态不会重现湮灭光子的横截面，这与最近的一项调查相反。我们回顾了最精确的康普顿散射湮没光子实验的动机和方法，以解决有关横截面本身已被实验验证的程度的相互矛盾的报告。
This theoretical research aims to examine areas of the Compton cross section of entangled annihilation photons for the purpose of testing for possible break down of theory, which could have consequences for predicted optimal capabilities of Compton PET systems. We provide maps of the cross section for entangled annihilation photons for experimental verification. We introduce a strategy to derive cross sections in a relatively straight forward manner for the Compton scattering of a hypothetical separable, mixed and entangled states. To understand the effect that entanglement has on the cross section for annihilation photons, we derive the cross section so that it is expressed in terms of the cross section of a hypothetical separable state and of a hypothetical forbidden maximally entangled state. We find lobe-like structures in the cross section which are regions where entanglement has the greatest effect. We also find that mixed states do not reproduce the cross section for annihilation photons, contrary to a recent investigation which reported otherwise. We review the motivation and method of the most precise Compton scattering experiment for annihilation photons, in order to resolve conflicting reports regarding the extent to which the cross section itself has been experimentally verified.